How often should I use a chemical exfoliant?

How often should beginners use chemical exfoliants?

For glycolic acid, begin once or twice a week at night and increase gradually only if your skin stays comfortable and the directions allow it. You do not need to increase simply because you have finished a bottle. For other exfoliating acids, use the product's directions rather than borrowing glycolic acid's schedule.134

How many times a week should I exfoliate with acids?

For gentle exfoliation, once or twice weekly is a useful baseline, including for aging skin. But the percentage on the bottle is not the whole story. An alpha hydroxy acid's exfoliating effect also depends on its type, pH, which measures acidity, and the other ingredients. Two products with the same acid percentage do not automatically deserve the same schedule.35

Can I use a chemical exfoliant every day?

Yes, with some formulas, but daily use is not a universal target. Salicylic acid can be used up to twice daily by many people, while glycolic acid needs a slower introduction. Some AHA products are designed to stay on the skin daily; others are short contact treatments that must be rinsed off. Neither format overrides the label's frequency or contact time. Applying more product or using it more often than directed can leave skin raw and irritated.156

Should I use chemical exfoliants in the morning or at night?

Night is a good choice for glycolic acid and other AHA products that stay on the skin. Using an AHA at night does not remove its effect on sun sensitivity: protect your skin during use and for a week after stopping.67

1. 1Read the directions before applying. Check whether the exfoliant stays on or needs rinsing, and follow its specified contact time.
2. 2Apply gently. Do not exfoliate sunburned skin or areas with open cuts or wounds.
3. 3Follow exfoliation with moisturizer to help keep skin hydrated.
4. 4Each morning, apply broad spectrum sunscreen with SPF 30 or higher as the final skincare step. With AHAs, also wear protective clothing and limit sun exposure.

When should I use it less often or stop?

Retinol, prescription retinoid creams and benzoyl peroxide can make skin more sensitive or cause peeling. Adding exfoliation can worsen dryness or breakouts. Dry, sensitive or acne prone skin calls for mild exfoliation rather than aggressive treatment. Avoid strong exfoliation if you have a darker skin tone or develop dark marks after skin injuries, because aggressive exfoliation can increase pigmentation.2

If the exfoliant causes irritation or a rash, stop using it and make an appointment with a dermatologist. If you are unsure whether exfoliation suits your skin or fits your existing treatments, a dermatologist can help you decide. An exfoliant is optional, so your routine does not need to acquire one just to complete the skincare industry's paperwork.24

What should I expect?

Exfoliating acids remove dead surface cells and can improve smoothness and brightness. Regular use takes time; there is no single results deadline for every acid formula. Increasing frequency beyond the directions is not a shortcut to better results.15