How Often Should I Use 20% Glycolic Acid Peel at Home DIY Style?

Glycolic acid peels are a very superficial peel, and if used appropriately, only impact the top layer of the skin. Scarring, photodamage, and acne affect the skin at a deeper level, so it is unlikely that you will improve these conditions with a home glycolic acid peel. Prescription retinoids are a simple, relatively well-tolerated medication that can address photodamage, scarring, and acne. They are safe in tanned skin and in darker skin types. A board certified dermatologist can select an appropriate retinoid and tailor a topical regimen that will address your skin needs.

Quite frankly, you should never use these at home. These are chemicals and should ONLY be used by trained professionals. I have many patients who did various home remedies, peels, and other things, and many of them have permanent scars and disfigurements. Even though online stores will sell just about anything to anyone, these are chemicals and misusing them (not prepping the skin, keeping it on too long, using too high of percentages, using these while using other creams or products that will interfere, not neutralizing properly afterwards, etc.) can cause you absolutely severe damage and perhaps a lifetime of issues. This is just a bad idea. See a trained professional if you want a peel like this - Asian skin is particularly prone to hypo and hyperpigmentation - BOTH of which these peels can cause if mishandled.