summer humidityI live in San Francisco where the weather is almost always temperate–cool with low humidity. However, I am in Pennsylvania right now visiting family. I forget how unforgiving hot, sticky summer weather can be to acne-prone skin until I am enveloped in it. I’ve had to be super strict with The Regimen since I’ve been here to stay clear. This is par for the course in hot, humid weather, however. Researchers have found that people in hot and humid climates have more incidence of acne and more severe cases of acne than those in temperate climates. This is not to say that you can’t still stay clear during summer. It just takes stricter adherence to The Regimen.

Tips to stay clear in hot/humid climates:

1. If you end up sweating, try to be gentle when you dry off. Dab your skin gently with a towel or napkin and do not rub the sweat off. Constantly wiping off sweat can be irritating to the skin and cause a breakout. More tips on how to avoid irritation here.

2. Be super strict with The Regimen. Do it twice a day, every day, use plenty of benzoyl peroxide, and moisturize even if you don’t feel that you need to. In the summer it is even more important to follow The Regimen to a T.

3. Try adding 10% glycolic acid (AHA) to The Regimen to bump up the effectiveness even more. Just be sure to adequately protect your skin from the sun if you decide to add in glycolic acid.

4. Since body acne can be aggravated by irritation, and sweat + irritation can make this worse, you may need to treat your body in the summer as well.

Now go out and have some fun! :)

Miscellaneous Questions and Answers:

So, are we saying that the baby wash is also equal to the purpose cleaner? And if so, is the baby wash also a replacement or a substitute for the face wash in the first step for the regimen?

I’d actually like to hear from more of you on this. I don’t personally like baby wash, Purpose, or Clean & Clear because they are heavily scented. But if it’s working for people, it might be a low cost option.

I been on the regimen for 4 months and am almost completely clear all I have is scars and a few whiteheads. I have a question for Dan what can I do to help with my scars every time a pimple goes away I get a scar I get all frustrated. Please tell me what to use or do. I tried ur aha and it helped little bit. Thanks

You’re doing the best possible thing you can do, which is to clear up your skin and thus prevent future scarring. In order to prevent scarring more completely, be vigilant in your adherence to the Regimen. And whatever you do, do not pick! If you must pop, that can sometimes be done without scarring, but avoid picking at all costs.

For more on scarring, check out the brand new scars pages.

What about the new labels (that you mentioned in a recent blog post)?

These are probably a while away still. We’re planning an entire site redesign which will incorporate the new labels and a whole bunch of new stuff.

Moisturizer Questions and Answers:

Can’t wait to try (the new non-SPF moisturizer). How about shine? The old moisturizer made my skin shine and appear oily. I’m hoping that this one won’t as much. I like the matte look. :)

The new moisturizer should be much less shiny than the old one. It has a nice matte finish.

Will the new moisturizer…be available in a tube, instead of a pump bottle?

We are putting it in a bottle to start. In the future, we may switch to a tube.

Will (the new non-SPF moisturizer) be more moisturizing as well?

It should be equally moisturizing. The old moisturizer was extremely moisturizing already. If you are having problems with any moisturizer not providing enough hydration, consider adding 5-6 drops of jojoba oil into each application.

Dan, could you tell us something about the developmental phase of this new moisturizer particularly how the ingredients were chosen and the mixture defined? I have understood that the company behind the doesn’t have as great resources to put into the development of new products as some others so how is it possible that this moisturizer is “the best moisturizer they’ve ever tried”?

I wonder where you got the idea that we don’t have great resources!? Quite the contrary, we have some of the greatest minds in the U.S. and in the world working with us closely on each formula. Our BP, for instance, is made by a company which is owned by a cosmetic chemist who is renown in the skin care world as the leading BP manufacturer bar none. When it comes to our moisturizer, I researched ingredients at length myself, and then worked very closely with a team of top tier cosmetic chemists from around the world, all of us laboring on over 100 samples until we have arrived at our latest one. has access to the best people in the world. I would have it no other way. We carefully work as a team to choose each ingredient. I am also personally involved in each phase, sometimes to an excruciating degree, if you were to ask the chemists :)

As always, I will let the products speak for themselves. I aim to produce literally the world’s best product in each category for all of us to use. If I can’t achieve that for us, I see no reason to produce it.

Will we still have an option to buy the old (non-SPF mositurizer) formulation once the new one comes in? Will the old one be for sale?

No. The new moisturizer is improved. I think you’ll be very happy with it. I went with my gut on this one. I quite simply don’t want anything but the best out there, and we have a “new best” now.

Makeup Questions and Answers:

Does it help if the make-up says non-comedogenic? …and hypoallergenic and fragrance free?

Seeing “non-comedogenic” on a product doesn’t mean much. There is no regulating organization when it comes to claiming the term “non-comedogenic”. Anyone can print this phrase on any product, no matter the ingredients. When it comes to “hypoallergenic”, products do have to undergo testing to put this claim on the product. However, many products which do not claim “hypoallergenic” are also extremely gentle. “Fragrance free” formulas are devoid of added fragrances but are not necessarily completely scent free due to natural ingredients in the product which may have a slight scent. I always look for fragrance free products because (1) I just happen to hate fragrance, and (2) the less unnecessary ingredients the less chance of any reactions or problems.

Could you expound on what your research has revealed about isopropyl?

Isopropyl Isostearate and Isopropyl Myristate are two highly offending ingredients from rabbit studies. When scientists rubbed various compounds on albino rabbit ears, these two ingredients tended to clog pores to a very high extent. Myristal Myristate and Laureth-4 presented as the two other most offending ingredients. Another “Iso”, Isopropyl Palmitate, was also comedogenic, albeit to a slightly lesser degree. Keep in mind, however, that the scientists applied all of these ingredients at a very high percentage. Cosmetic manufacturers usually use them in small amounts in cosmetic formulas. I personally choose to avoid these heavy offenders just to stay on the safe side.

How long would you have to stop using makeup to have these (Acne Cosmetica) bumps clear up? And what if you use mineral foundation?

This is a good question. Since Acne Cosmetica appears more non-inflamed, I would surmise that it would take a bit longer than inflamed acne to clear it up. But I do not have close personal experience in this area. Would anyone like to comment on how long it took them to clear up their cosmetic induced acne?

Dan, oh Dan. When will you start recommending mineral makeup for acne prone skin?

I don’t foresee it. In the name of science and in the name of I went to the mall and full-on applied mineral makeup one day and wore it around for the rest of the day. I detested the heavy, ongoing feel of it, and it was everything I could do to not wash it off. Particularly, it was incredibly itchy. This tendency to induce itchiness causes scratching, which in turn produces irritation. In speaking with some women who have tried lots of different types of makeup, they seem to have experienced the same itchiness and cakey feel when it comes to mineral makeup.  What about the rest of you?  What do you think?

Sunscreen questions and answers:

When should we expect to see your suncreen product available to purchase?

I’m hoping to get a sample into FDA required testing within a month or so. This testing takes a minimum of 3 months, after which point we need to produce labels, bottles/tubes, etc. New product introductions are a lengthy process. I’m hoping for next year when the sun again climbs high in the sky.

Dan, I’ve followed your website for years and to my knowledge, you’ve always said that avobenzone is a breakout trigger and that zinc oxide was the best option for acne-prone people. Since when did your philosophy on this change? And what is the reason behind the change? You always seemed vehemently anti-avobenzone before, and the sudden change of heart is confusing.

I can see why you are confused. I was vocally anti-Avobenzone before, and I stand by that decision because all of the Avobenzone-based sunscreens on the market broke me out. However, I always made to sure to include the caveat that it may be the Avobenzone that was breaking me out and it may be something else. If there is one thing I’ve learned over the years it is that life presents us with a multitude of variables, and it’s almost never a good idea to jump on one variable as the cause of something.

But after literally years of testing zinc and titanium dioxide based over-the-counter sunscreens, and after an equal amount of time formulating zinc and titanium dioxide sunscreens myself, I realized these ingredients are not an option. They are simply too flake-promoting, no matter the percentage of emollients I put into the formulas. At the end of my rope, I decided to formulate with Avobenzone myself, thus ensuring that all other variables were safe. It turns out that Avobenzone must not have been the culprit of my previous breakouts because after about 6 months of daily use of the Avobenzone formula I produced, my skin looks and feels great and is consistently and predictably almost perfect. I have received an overwhelmingly positive response from all of those who I asked to sample it as well.

So what was caused my breakouts then? It’s hard to say. I’ll keep looking into other variables and see if I can pinpoint something.

When I came out with the benzoyl peroxide pretty much everyone loved it. Then you guys gave me the feedback that you wanted non-paraben preservatives. I changed to non-paraben preservatives and pretty much all of us have been happy clams ever since.

Then I came out with the cleanser and pretty much everyone loved it. But then a few people gave feedback that they wanted it more moisturizing, so I added 10% more moisturization and pretty much all of us have been happy clams ever since.

Recently I released a moisturizer as well. Again, at first most people loved it. But now a few people have been letting me know that the current moisturizer is giving them some flakiness after a few weeks of use. I’ve also gotten other complaints about the moisturizer. So I had a talk with our manufacturer today and we are going to do two things to the moisturizer. (1) We’re going to swap out stearic acid for another ingredient. Stearic acid is most likely the culprit as far as the delayed flakes go. (2) We’re going to sap out bisabolol for licochalcone, an even better anti-inflammatory which is beneficial in the lipase process and thus beneficial for acne.

What’s my point? Just that I appreciate your feedback. We’re in this together and together we are going to keep making the best acne treatment products on the planet. To this end, Joel and I are making a form that we’ll put on the web site soon so that more and more of you can let me know exactly what you like and what you want changed. I’ll keep you posted on that.

Thanks everybody!!