Here are some answers to some recent questions. I am not able to get to all open questions on the blog, but here’s a start:
Would you please be so kind as to list the five (Avobenzone) products you’ve tried in the past? Thank you.
I don’t remember most of them. Sorry. The only one I remember is Neutrogena Ultra Sheer.
What about the bare minerals new SPF powders. May be kind of girly but have you tried it?
I have tried it, in the name of science! I even went out on the town one day with it on, hoping no one would notice. The first thing my friend said when I saw him was, “Are you wearing makeup?” LOL. Anyway, I hated it. It felt cakey and my skin got dry and flaky. Do people really like that stuff? I can’t imagine. As a side note, makeup is an area that I want to study more. I know it is important. If anyone wants to help with research in this area, please contact me.
…isn’t mineral oil one of those things to avoid?
No. Mineral oil is non-comedogenic. In the old days they had multiple grades of mineral oil on the market and the lower grades were comedogenic, but these days only the highest grade is used in products, and it is non-comedogenic.
Is SPF 15 really enough for good protection than SPF30 during summer heat?
As you go up in SPF you get diminishing returns. SPF15 is over 90% as effective as SPF30. And anything over SPF30 is likely to not give any better protection than SPF30. I personally feel more than comfortable with SPF15. The higher SPF formulas I have tried seem too greasy and heavy.
I think too much BP (for me) causes too much irritation. Is this possible?
Yes, this is absolutely possible in two circumstances. (1) At the onset of a benzoyl peroxide regimen, and (2) if you are not using adequate moisturizer. At the start of the Regimen, you want to use a small amount of BP to reduce overly irritating side effects. And once you are on the Regimen it is vital to moisturize twice a day, every day, to maintain a balance in your skin. Benzoyl peroxide, when used correctly, is incredible for clearing acne, but it must be used within a regimen that includes adequate moisture to reduce overdrying the skin.
How close are you to releasing the new moisturizer?
We are hoping for 3 months from now or so.
Are you going to use (in the spot treatment) a betta-isomer of Salicylic Acid?
Yes, we use beta hydroxy acid, the active form of salicylic acid.
(Will the spot treatment have) BP in it??
No. Benzoyl peroxide and salicylic acid cannot be in the same formula. Plus, benzoyl peroxide doesn’t do well in strongly acidic formulations. I am keeping the spot treatment at the legal limit for acidity, 3.5pH, so we can get as much activity from the glycolic acid as we can.
Is it okay to use (the spot treatment) on the whole face instead of the AHA treatment?
I wouldn’t recommend it. First of all, I am leaning toward bottling it in very small tubes. Secondly, it is extremely strong. The spot treatment is made to be used in a tiny pin size amount.
How do I know if I’m being gentle enough (on the Regimen)?
Check out the videos and when in doubt, be more gentle. Also, remember that staying gentle not only applies to during application of the Regimen, but also throughout your day. Try to keep your skin relatively untouched.