My skin is burning and/or red after I apply the benzoyl peroxide. Is that normal?
A:
I experience a very tolerable low level of what one might describe as "burning".
Many people who begin the Regimen report redness for the first couple of
weeks, after which time the redness subsides. If you start the Regimen too
quickly and you have sensitive skin, you should expect redness/dryness,
sometimes severe. If you are new to benzoyl peroxide, it is a good idea
to use just a light coating of benzoyl peroxide at first, and up the
dosage over a period of a couple of weeks. According to the Gale Encyclopedia
of Medicine:
"The most
common side effects of anti-acne drugs applied to the skin are slight
redness, dryness, peeling, and stinging, and a warm feeling to the skin.
These problems usually go away as the body adjusts to the drug and do
not require medical treatment. Other side effects should be brought
to a physician's
attention. Check with a physician as soon as possible if any of the
following side effects occur:
Blistering, crusting or swelling of the skin.
Severe burning or redness of the skin.
Darkening or lightening of the skin. (This effect will eventually
go away after treatment with an anti-acne drug ends.)
When I apply the moisturizer it burns/stings. What should I do?
A:
Some people may experience light burning or stinging when they are new to the Regimen. The skin
may be sensitive from the benzoyl peroxide and this may cause an uncomfortable sensation when the
moisturizer is applied. This usually goes away within a few weeks as the skin adjusts to the new
products. If it doesn't, you may want to try a different moisturizer. See our
recommended products page. Also, be sure you did not start
out with one of the AHA moisturizers. If you are going to use one of them, it's usually best to
wait at least a month before doing so. The glycolic acid and/or lactic acid in them may create a
brief sting or burning sensation to the skin.
My skin looks absolutely terrible. It is peeling off, red, and I am miserable. What do I do?
A:
You are either allergic
to benzoyl peroxide, or you started too fast. 1-3% of people are allergic
to benzoyl peroxide and experience swelling and/or crusting. If your skin
swells up, discontinue use immediately. Most likely if you are experiencing
severe dryness/redness, you simply started too fast. It takes a few
days to a few weeks for your skin to become acquainted with benzoyl
peroxide, and the redness/dryness should subside with time. Using a non-overdrying liquid cleanser can help prevent this dryness as well. Also, be sure to moisturize liberally. If you really
can't stand the dryness, stop the Regimen completely, give your skin a few days to
recover, and begin again with a much smaller dosage, only ramping up the
dosage as you feel comfortable. But remember, you eventually need to use
A LOT of benzoyl peroxide to achieve total clearing.
My skin is dry from the benzoyl peroxide. Nothing can make it non-dry, even a lot of moisturizer. What do I do?
A:
Hopefully you are dry and clear. Now try gradually reducing the amount
of benzoyl peroxide cream you use. Use as much as you need to to stay clear
but reduce dryness. Adding jojoba oil to your moisturizer or switching to an AHA moisturizer can help as well.
Here is a quote from the National Institute of Health:
"People being
treated for acne often need to change some of the cosmetics they use.
All cosmetics, such as foundation, blush, eye shadow, and moisturizers,
should be oil free. Patients may find it difficult to apply foundation
evenly during the first few weeks of treatment because skin may be red
or scaly, particularly with the use of topical tretinoin or benzoyl
peroxide. Lip products that contain moisturizers may cause small, open
and closed comedones to form. Hairstyling products that come in contact
with the skin along the hairline can cause burning or stinging in people
with acne. Products that are labeled as non-comedogenic (do not promote
the formation of blemishes) should be used; in some people, however,
even these products may cause acne."
I suggest discontinuing the use of make-up until you get completely clear. Then you can add in one product at a time and see how it affects you. For more discussion on make-up, see the make-up
help message boards.
As a final note, several dermatologists and professors who I trust have recommended Almay as the safest, least comedogenic make-up brand.
How do I get rid of the red/dark marks left after the blemish goes away?
A:
You can visit the red marks message board for discussion and suggestions, but before you do, please read the biggest mistakes page. Try your best to avoid adding in products and new methods until you're completely clear of active acne. The most important goal regarding red marks is to prevent future acne and thus prevent future red marks from forming in the first place. Here is a quote from the American Academy of Dermatology and Roche Laboratories regarding red marks:
"A red mark
on the skin called an erythematous macule will fade in four to six months
after an acne outbreak - but it may get temporarily redder when your
skin gets hot or when you exercise. This red macule is not a scar, and
is not permanent. In a dark skinned person, the macule may appear as
a darker patch on the skin. This is not a scar, either."
People with darker skin tend to suffer with these marks more often. For more information on post-inflammatory hyperpigmentation, click here.
Benzoyl peroxide is said to be comedolytic which means it breaks down clogged pores. However, there is no miracle product that I know of that can quickly get rid of a full fledged pimple once it has established itself on your skin. That said, benzoyl peroxide can clear up acne faster than would be possible without benzoyl peroxide and does a brilliant job at preventing future acne. For even better spot treatment results, alpha hydroxy acid can be administered.
No, it does not cause wrinkles; however, some people experience wrinkling around the eyes due to applying benzoyl peroxide too closely to that area. This wrinkling is due to dryness and is not permanent. Avoid the eye area with benzoyl peroxide. It is also important to avoid the eye area with moisturizer that is applied over the benzoyl peroxide. This is because the moisturizer can mix with the benzoyl peroxide and bring the benzoyl peroxide with it. On a personal note, the lower half of my face, which is where I've been using benzoyl peroxide for 20 years, looks better than where I haven't. See this link for a pic of my skin after 20 years of benzoyl peroxide use.
My skin is extremely oily? Do I need to moisturize?
A:
I always recommend people who are new to the Regimen go ahead and moisturize from the very beginning since it can take a week or two for the dryness to set in. If you find your oiliness unbearable, consider buying oil absorbing cloths from the drugstore. You can use them to very gently dab away excess oil. Some members have reported that the brown paper towels in many school bathrooms do a good job with this as well.
Even if your skin is oily, you should find that regular moisturizing, especially with a moisturizer that contains jojoba oil, should help control your oil production.
Do you know if (Brand X) product is as good as the products you recommend?
A:
For the most part, I don't know. From all the many products I have tried
in my years fighting acne, these products work best for me. From the reaction
I've received from people who have tried the Regimen, they seem to like the
products as well. Check out the ratings pages
for people's opinions on a slew of other products.
No. Toners are one of those instances where it's best to save your money. They are not only unnecessary, they can over dry the skin. Over dry skin is irritated skin, and irritation can aggravate acne. When you read opinions from skin care experts and dermatologists, most of them tend to agree on this point. If you do find someone recommending a toner, keep in mind whether or not they are trying to sell you one. Toners tend to be high profit items.
Have you ever tried B5? If so, what was your experience like?
A:
I did try megadosing on B5 because many people on the boards seemed to be trying it and I wanted to experience it with them. I took the 10 grams a day as suggested. My skin became more oily, not less. I also broke out with a bunch of small bumps all around my nose where the oiliness increased the most. Finally, I had a very odd and disturbing side effect which was that I had a hard time keeping my head up. I always felt like I wanted to lean my head against a pillow and my neck felt too weak to hold my head up straight. It was worrisome so I stopped the B5 after two or three weeks.
There has only ever been the one study done on B5 back in the 1990s. Unless many other studies show positive results I will not begin to recommend B5 to people.
Can I use skin lightening products while on the Regimen?
A:
Do not use products with the active ingredient Hydroquinone.
Hydroquinone topical should not be used with benzoyl peroxide, hydrogen peroxide, or other peroxide products. A temporary darkening of the skin may occur.
For the full story on Hydroquinone read here.
Please see the paragraph under "What other drugs will affect Hydroquinone topical?" for the full explanation.
What is the difference between a tinted and vanishing formula benzoyl peroxide?
A:
Cream based benzoyl peroxide sometimes comes in a tinted formula. Tinted formulas do not vanish, but rather leave a foundation type look which
helps to mask acne. I have not tried a tinted formula because I do not
wish to appear that I am wearing make-up. Most people on the message boards
seem to prefer vanishing formulas. I recommend following their lead, doing the Regimen precisely
as outlined until you are clear. After that point it is safe to add in one
variable at a time, like switching to the tinted formula if you'd like.
Why wait between washing and BP and between BP and moisturizer?
A:
This is the result of many years of trial and error. I found this is how the Regimen works best. Your skin may be slightly different and you may be able to wait a shorter time, but please follow the Regimen this way until you are completely clear. Then you can safely change one variable at a time.
Acne anywhere on the body, whether it be face, neck, back, or chest, responds
well to benzoyl peroxide. The only problem is that benzoyl peroxide tends
to bleach dyed fabric. A body regimen which uses benzoyl peroxide requires the user to wear a lot of white.
Because the back and chest are such large areas, you may want a larger size benzoyl peroxide. Check out DanielKern.com
for information about the less expensive 16oz. economy sized benzoyl peroxide gel.
I exercise during the day and sweat. Should I wash afterward? And
what's up with the white residue on my face when I exercise?
A:
Sebaceous follicles (where acne is formed) and sweat glands are separate
parts of your skin which do not touch. Sweating should theoretically not
affect acne since acne is formed in the sebaceous follicle, and
sweat will not enter this area. Sweating does not warrant a third washing.
If you want to wash after a workout, try to plan your workout before your
morning or evening regimen.
You may notice that
if you sweat within a few hours after you do the Regimen with a cream-based benzoyl peroxide that your face can turn milky white in the places where you did the Regimen.
This is normal, but annoying and is mostly caused by using a cream based benzoyl peroxide. Either switch to a gel
based benzoyl peroxide, or feel free to lightly dab your face with a
towel to get rid of the residue.
I am going to be swimming during the day. Should I do a third Regimen
application afterward?
A:
I don't know because I am not a swimmer. The consensus on the message boards
seems to be that swimming does not adversely affect acne and a third routine
is not warranted. Your skin may become very dry after a swim, so although you may not need to apply BP again, be sure to bring a moisturizer along.
Can I use the Regimen with the prescriptions I am currently taking?
A:
You will need to ask your doctor this question. Some doctors do prescribe
benzoyl peroxide with other acne medications, but it is important that you
not experiment on your own.
Can I use the Regimen in conjunction with additional products or over-the-counter medications?
A:
Do not do this until you are completely clear and have been that way for
some time. Once you are completely clear, it is okay to add in one variable
at a time. However, if you begin the Regimen and are adding in other variables
from the get go, you will have no way of judging whether the Regimen works
for you. See the biggest mistakes page for more.
The jury is still out. The majority of medical books I scoured for acne medication
information specifically warn against the combination of salicylic acid
with benzoyl peroxide, calling it "overly irritating". Several
people on the Regimen have noted this. This warning is echoed when combining
benzoyl peroxide with several other acne medications as well,
resorcinol and sulfur to name two. Remember, irritation aggravates breakouts.
However, some Acne.org members have used salicylic acid with benzoyl peroxide successfully. If you want to try this, first use the Regimen without salicylic acid until you are completely clear. Then, feel free to add in one variable at a time such as the addition of salicylic acid.
I can't get a 2.5% benzoyl peroxide. Can I use a higher concentration?
A:
2.5% is best. However, anything up to 5% should most likely be fine, albeit
more drying and no more effective. Avoid 10% preparations which will over dry.
One exception is when dealing with pimples on the back. The skin in this area is tough and may withstand
10% nicely. If you can find a 10% much cheaper, feel free to try
it on the back.
So why not simply use
less of a 10% solution? Through trial and error I have found this does not
work. I do not know exactly why using more of a 2.5% solution works better.
My educated guess would be that when you use more of the product, there is more available
to be absorbed into the skin.
The moisturizer is balling up with the BP. What's going on?
A:
This is normal when using a cream based benzoyl peroxide. Using a gel
will eliminate the problem. If using a cream, just slough off remnants with
your fingers.
I recommend using a two blade razor. Single blade razors tend to pull at the hair and lend themselves to nicks, and three or four blade razors irritate badly. Blade shaving with a two blade razor is also far less irritating than any electric razor. My favorite two blade razors are the Gillette Sensor Excel and the Gillette Trac II. I have tried almost every razor out there, and these two are unparalleled in their gentleness. If you can't find either of these, try a disposable two blade razor such as the Gillette Good News. Once you've got your razor, I recommend using a generous amount of lather from your cleanser as shaving cream. If you must use a separate shaving cream, make sure it is non-comedogenic. Try shaving in the shower or immediately afterward so your skin is thoroughly moistened and prepared. While shaving, use gentle yet confident strokes, always going with the grain. This means for most people going down on most of the face and up on the bottom half of the neck. If you have a pimple or pimples to shave over, try to be gentle and if at all possible only shave over the area one time. One final note: shaving daily is less irritating than waiting a few days between shaves. The longer you wait, the more irritating shaving becomes. I recommend shaving daily.
Click here for a more detailed page regarding shaving.
Does benzoyl peroxide prolong red marks after acne lesions have gone away?
A:
I have found no empirical evidence on this topic. However, there have been a good amount of people who have posted about this on the message boards. I have not seen benzoyl peroxide prolong red marks in the people I have personally coached through the Regimen. However, this does not mean it does not happen to some people. However, the topic is somewhat moot because the best treatment for red marks is prevention of acne. The prevention of acne thusly prevents future red marks from forming in the first place. And the best treatment we have for acne is benzoyl peroxide. So, while there may be a slight chance that benzoyl peroxide may prolong red marks in a few select individuals, when we look at long term red mark prevention, preventing acne in the first place takes precedence. My suggestion would be to get your skin cleared up completely with the Regimen and then practice patience as your red marks fade.
Do not do this until you are completely clear and have been that way for some time. Once you are
completely clear, it is okay to add in one variable at a time. However, if you begin the Regimen
and are adding in other variables from the get go, you will have no way of judging whether the
Regimen works for you. See the biggest mistakes page
for more.
My most recent bottle of benzoyl peroxide looks/feels/smells different than the last one. Why is that?
A:
We assay every batch and carefully make sure it's uniform.
Temperature can change the viscosity of the gel which can affect the way it appears. Also, the newer the batch is, the thicker it tends to be and the stronger the scent will be. It will get thinner over time and the smell will subside.
What can I use to spot treat while on the Regimen?
A:
For me, AHA works wonders as a spot treatment. If I see the beginnings of a zit I'll use a 10% glycolic acid (AHA) lotion and apply it to that one spot after I apply the benzoyl peroxide. More times than not, this'll do the trick. This works best when I get it just as it starts emerging. If I wait too long pretty much nothing except for time will help. I'd like to know if it works as well for others as it does for me, so if you decide to give it a try, please reply in the poll on this page.
How do you choose which ingredients to use and which not to use when formulating your products?
A:
I strive to use the most inert ingredients possible while still preserving the products. When formulating products it is a delicate dance between making sure not to use ingredients that are harmful and at the same time preventing mold and bacteria growth in the product. Preventing this mold and bacteria growth is of paramount importance. The skin care industry learned this the hard way through inadequately preserved make-up which left several consumers blinded for life. It is dangerous to use skin care products which are not free of mold and bacteria. You want to be absolutely certain that your products are preserved well. I use preservatives in extremely small amounts (in the .1% range) which minimizes any adverse effects, while at the same time preserving the products well. I am always on the look-out for better preservatives. The ultimate goal is to preserve products with only organic compounds, but as of 2009 we do not have such a luxury. Rest assured I am on top of this issue and will be vigilant about protecting you guys, both from harmful preservatives as well as from mold and bacteria overgrowth.
Can I get microdermabrasion treatments while on the Regimen?
A:
I very highly recommend that you do not. Microdermabrasion creates unnecessary irritation. Irritation from microdermabrasion treatments can perpetuate the acne cycle. A much better way to exfoliate the skin is to simply add glycolic acid into the Regimen after 3-4 weeks. If you add it before this amount of time has passed, it can sting badly, so be sure to wait. Glycolic acid is an acid derived from sugarcane which provides incredible chemical exfoliation. I prefer chemical exfoliation to manual exfoliation because it helps you avoid irritation of the skin's surface. Plus, glycolic acid actually helps me with my acne symptoms and is a welcome addition to the Regimen.
A quote from "Acne and Rosacea: Third Completely Revised and Updated
Edition", 2000:
"Following
application to the skin, benzoyl peroxide is rapidly metabolized to
benzoic acid, a harmless chemical. Extensive use in human beings has
failed to demonstrate absorption. The drug is eminently safe."
A quote from The British Journal of Dermatology, 1990:
"So far no
skin malignancies after the clinical use of benzoyl peroxide has been
reported. A possible relationship between the use of the compound and
the occurrence of malignant melanoma has been looked at in two case-control
studies, both with negative results...However, since the average latent
period for skin carcinogenesis is of the order of 15-25 years, this
requires further follow-up...Thus, the question of carcinogenic potential
of benzoyl peroxide is as yet not fully answered, but at the present
time it seems likely that this compound is safe to use."
A quote from Regulatory Toxicology and Pharmacology, 1995:
"Topical benzoyl
peroxide has been used in the treatment of acne for over 30 years, with
no reports of adverse effects that could be related to skin carcinogenesis.
Two case-control epidemiological studies have found a lack of association
between the specific use of benzoyl peroxide and skin cancer. In addition
to these findings in humans, 23 carcinogenicity studies in rodents with
benzoyl peroxide, including 16 employing topical application, have yielded
negative results. An increase in skin carcinomas was reported in 1 study
in which benzoyl peroxide in acetone was applied to the skin of SENCAR
mice for a 1-year period; however, this study did not employ adequate
control groups to fully understand the unusual findings, and the results
were inconsistent with those of 6 other similar studies."
Will my skin become resistant to the beneficial effect of BP?
A:
Propionibacterium acnes (P. acnes), the bacteria in acne lesions, cannot survive in the presence
of oxygen. BP creates oxygen. Therefore, it is physically impossible for
this bacteria to develop a resistance. If the Regimen works at first, it
should always work.
What can I do to help prevent BP from bleaching my stuff?
A:
The fact that BP bleaches fabric is in my opinion its biggest drawback. Sometimes there's not a lot you can do about it. However, these tips may help:
Wash and dry hands thoroughly after handling benzoyl peroxide.
Do not rub sweat from your face on your clothing.
Put your clothes on first, then apply BP. If you apply BP first and then put on your clothes, hold your shirt neck holes open wide while pulling them so they don't touch the face. Do the same when removing your shirts.
Use white towels.
Wear a white t-shirt under clothing if you are treating your back/chest with BP.
Dab sweat off with a clean dry towel to avoid run-off onto clothing.
Take your shirt off before washing your face in the sink so the wash water doesn't get splashed onto your shirt by accident.
When washing at the sink, if you have a carpeted bathroom, place a towel under your feet to catch any drips that may fall while you are washing.
Use white pillowcases and sheets. In a pinch, an old t-shirt can also be used as a pillowcase.
I like to lay out in the sun in the summer. Is this OK?
A:
We needn't view the sun as an enemy. We get our vitamin D through the sun, and it just plain makes many of us feel good. However, if you get too much sun exposure, you can damage your skin. While trying to get rid of acne it's important to prevent sun damage. As your skin repairs itself from sun damage, this process can cause a breakout to ensue. A breakout can occur about two weeks after overly exposing your skin to the sun.
If you only tend to break out on your face
If you tend to break out on your face and body
Feel free to get some sun on your body, while wearing appropriate sunscreen to prevent skin damage and premature skin aging. My advice would be to simply wear a wide-brimmed hat to keep your face out of the sun. Alternately, you can apply a zinc oxide based sunscreen. My favorite zinc oxide sunscreen is Olay Complete for Sensitive Skin. Since sunscreens are not complete sunblock, they will only afford you partial protection from UV rays, so you will still be receiving exposure. While a bit of sun exposure on the face while wearing a good sunscreen is probably OK, but be careful not to overdo it.
You'll want to be careful not to overexpose any of the acne prone areas of your body to the sun. Again, the sun is not our enemy, so this needn't become an obsession. Rather, if you're going to be in the sun, try limiting your exposure, or wear a zinc oxide based sunscreen on the acne-prone areas of your body. My favorite zinc oxide sunscreen is Olay Complete for Sensitive Skin. However, like all sunscreens, Olay is not a sunblock and you will still be receiving sun exposure. Be sure not to overdo it.
There are a few reasons why tanning beds may be a bad idea for someone who is acne prone:
Exposure to UV light causes skin damage which can ultimately bite back with a breakout in the weeks following exposure as the skin attempts to heal itself. If you've ever noticed that you tend to break out mysteriously a week or two after using a tanning bed, the tanning bed may be the culprit.
Horizontal tanning beds force your back to come into contact with a glass surface for an extended period of time. That glass surface slowly gets sweaty. We know that prolonged irritation, especially when combined with sweat, can aggravate body acne. Add to this scenario the UV damage to your skin, and evidence starts emerging that horizontal tanning beds may be a close to perfect back acne recipe. I have personally found horizontal tanning beds to be off limits for myself for these very reasons. I've used them several times throughout my life, and broken out each and every time on my upper back.
For the sake of argument, there may be a reason or two that tanning beds are not so bad.
Tanning beds can ease the depression caused by lack of sunlight. Less stress can mean less acne.
Tanning beds can help provide vitamin D, a powerfully important nutrient in our bodies.
My best advice: If you are acne prone on your back, avoid horizontal tanning beds altogether. If you must tan in a tanning bed, choose a standing variety, and limit your time in the booth to one of the shortest durations available at the salon. Then, continue with an ongoing back acne treatment regimen to prevent post-tanning breakouts. If you are prone to acne on your face and neck, cover these areas or wear a non-comedogenic sunscreen (I vastly prefer zinc oxide based sunscreens) while inside a tanning booth. Then, after exposure, continue with an ongoing face and neck treatment regimen to prevent breakouts.
Proactiv is on the right track, but some major flaws seem to prevent it
from delivering on its promises to many people. In my opinion, the cleanser they
include is overly irritating. Furthermore, they tell you to wash for one
to two minutes which adds to the irritation. The benzoyl peroxide they provide
is 2.5% which is a good call. However, they recommend a "thin layer".
For dramatic clearing, one needs to use a generous amount of benzoyl peroxide
after a few weeks of slowly ramping up the dosage. When you do use a generous
amount of Proactiv's benzoyl peroxide lotion, its scent will tend to nauseate.
It will prove cheaper
and far more beneficial to buy an over-the-counter gentle cleanser, an unscented
2.5% benzoyl peroxide medication, and an oil-free moisturizer. However,
if you currently own Proactiv Solution products, don't throw out the benzoyl peroxide
lotion. If you can handle the smell, it should work fine, as long as you use it within the Acne.org Regimen and are generous
with it. I would not recommend using their cleanser. The toner they include
is probably fine to use, but is unnecessary.
Will lifting weights make me break out? What about my protein shake?
A:
There is no research on this topic, but I have a theory. First, I don't think lifting weights makes you break out. In fact, exercise keeps
the body in top shape and helps the mind deal with stress. I think the benefits
of weight training far outweigh the risks. I lift weights a couple of times a week and
am able to stay clear. However, if someone
goes on a weight gaining diet along with their weight training, and he/she
suddenly adds excess calories to his/her diet, the excess caloric intake
can increase testosterone levels in the body. Theoretically increased testosterone
levels can aggravate acne. So if you find yourself breaking out during or after a "bulking" cycle, this may be the cause.
Hey Dan, you're 37 years old. Haven't you grown out of acne by now, Regimen or no Regimen?
A:
Unfortunately, no. I started the Regimen at the age of about 24. Every year
or so I stop the Regimen to see what will happen. The result? Breakouts,
and within days. My family genetics see breakouts occurring into the 40s
and 50s. The issue of when a person develops acne or grows out of acne is
highly personalized, and one that science still does not understand. Babies
and even senior citizens must sometimes cope with acne.
How do I know if I should use the Acne.org AHA+ lotion?
A:
Throughout the years I have used AHA for spot treatment and as an exfoliating moisturizer. In the process, it also ended up making my skin look better and more even toned. A few people on the message boards have been reporting to me that it helps their red marks fade more quickly as well. Use it how you feel you might benefit most from it.
Is there anything special I should know about using AHA?
A:
If you are new to the Regimen, we do not recommend starting out by including the AHA+ lotion. Give yourself at least three weeks or so to let your skin get accustomed to the benzoyl peroxide before you consider adding in the AHA+ lotion. If you have super sensitive skin, try only a small dab of it under the jaw line for a few days to make sure your skin reacts to it well. When you are ready, start out by using a small amount once daily, or every other day, for the first week or two so you can see how your skin is going to react to it. Then you may increase the amount and frequency as you see fit. Next, Alpha Hydroxy Acids can make the skin more sensitive to the sun, so it is important for you to use a sunscreen each day while using an AHA. This is no joke. My skin is definitely more sensitive to the sun after using AHA for a few days. Prevent burning by using a moisturizer that has SPF in it or a separate sunscreen. I recommend Olay Complete for Sensitive Skin plus a few drops of jojoba oil as the best SPF sunscreen. Lastly, be sure that no other products you are using have any AHA in them. This will most commonly be listed on the ingredient label as glycolic acid or lactic acid.
Do I need to be on the Acne.org Regimen to use the AHA+ lotion?
A:
No. It can be a nice enhancement to the Regimen, but is not a requirement, and many people who are not on the Regimen can benefit from its exfoliating and skin calming properties.
I'm having problems with the Acne.org AHA+ lotion leaving a yellow residue or balling up. How can I prevent this?
A:
Be sure to wait 5-10 minutes after applying the benzoyl peroxide treatment gel before applying the AHA + lotion. If it is still balling up, try using less of it and see if that helps.
Binder, R.L., A.L. Kraus, R.A. LeBoeuf, I.C. Munro,J.C. Orr, G.M. Williams. "Benzoyl Peroxide: An Integrated Human Safety Assessment for Carcinogenicity." Regulatory Toxicology and Pharmacology 21.1 (1995): 87-107. Abstract. PubMed. 15 Apr. 2002 link.
Comite, H., A.M. Kligman, O.H. Mills Jr., and P. Pochi. "Comparing 2.5%, 5%, and 10% Benzoyl Peroxide on Inflammatory Acne Vulgaris." International Journal of Dermatology 25.10 (1986): 664-7. Abstract. PubMed. 15 Apr. 2002 link.
Lindelof, B., S. Linden, and P. Sparen. "Is Benzoyl Peroxide Carcinogenic?" The British Journal of Dermatology 123.1 (1990): 129-30.
"Questions and Answers About Acne." National Institute of Arthritis and Musculoskeletal and Skin Diseases Jan. 2006. National Institutes of Health. 2001. link.
Ross-Flanigan, Nancy. "Anti Acne Drugs." Gale Encyclopedia of Medicine 1999. Find Articles. Look Smart. 2001 link.