Evidence that glycolic acid works
Many of us here at acne.org have known for years that alpha hydroxy acid helps keep us clearer. Finally, the scientific community is backing us up:
According to a 2012 article in The Journal of Dermatology “... experiments performed by Atzori et al. and by our group showed significant improvement of imflammatory eruptions from the first application.”1
According to a 2012 article in the Journal of the German Dermatological Society “... Patients assess their skin as more tensile, firmer, smoother and more youthful looking after the use of AHA containing products. For mild acne, the efficacy has been proven by double-blinded, placebo-controlled randomized clinical trials.”2
Uses for Glycolic Acid
All Over Treatment
Glycolic acid can take The Acne.org Regimen to the next level, helping you to achieve even more reliably clear skin. After you've been on The Acne.org Regimen for at least 1 month, try using glycolic acid in place of your usual nightly moisturizer every 2-3 days. Alternately, mix an equal amount of glycolic acid and moisturizer in your palm and apply this way every night.
Usage: Use a thin line when applying to the face. More than this and it may sting too much.
Flakiness control: If you are on The Acne.org Regimen and are having problems with flaky skin, adding in glycolic acid as outlined above will completely eliminate flakes.
Usage: Be generous when treating your body.
If you see a zit forming try blasting it with 10% glycolic acid after you have applied 2.5% benzoyl peroxide and allowed it to dry. Many people find that this prevents the zit from maturing. Keep in mind that the way this works best is if you catch it very early.
Usage: Use a tiny amount.
When anything rubs against the skin repeatedly, such as a chin strap or baseball cap for example, it irritates the skin and can cause a breakout. Attempt to avoid or reduce irritation when possible. If you do end up irritating your skin, you may find that applying glycolic acid after your next Regimen application can help prevent an irritation-induced acne flare up.
Usage: The amount varies depending upon how large of an area is irritated.
AHA may increase your skin's sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen and limit sun exposure while using AHA and for a week after discontinuing its use.
Do not use AHA until you have been on The Acne.org Regimen for 3-4 weeks. It can produce a severe sting if you use it at the onset of a benzoyl peroxide regimen.