Retinol + Glycolic Acid (AHA)

Can you use Retinol with Glycolic Acid?

Yes, with timing

Yes, with timing. Use Retinol and Glycolic Acid on alternating nights rather than together.

Why

Retinol and glycolic acid both speed up skin turnover, and glycolic acid is the smallest, most penetrating AHA. Layering them on the same night is one of the most common causes of an over-exfoliated, stinging barrier. Glycolic acid also increases UV sensitivity, as a controlled study showed, and retinol makes skin more fragile too, so sunscreen matters even more.

How to use them together

  1. Night A: Retinol. Night B: Glycolic Acid. Or use Glycolic Acid in the morning and Retinol at night if your skin tolerates it.
  2. Start slowly (2-3 nights a week each) and moisturize.
  3. Daily sunscreen is essential with both.

Who should be careful

Beginners, people with sensitive skin, rosacea or eczema, and anyone using prescription retinoids should ask their dermatologist before combining.

About the ingredients

Retinol: An over-the-counter vitamin A derivative (retinoid) used for fine lines, texture and uneven tone. It converts to retinoic acid in the skin, so it is milder and slower than prescription tretinoin.

Glycolic Acid (AHA): The smallest alpha hydroxy acid. A chemical exfoliant for texture and dullness. It can increase sun sensitivity.

FAQ

Can I use Retinol and Glycolic Acid together?

Yes, with timing. Use Retinol and Glycolic Acid on alternating nights rather than together.

Should I use Retinol or Glycolic Acid in the morning or at night?

Night A: Retinol. Night B: Glycolic Acid. Or use Glycolic Acid in the morning and Retinol at night if your skin tolerates it. Start slowly (2-3 nights a week each) and moisturize.

Who should be careful combining Retinol and Glycolic Acid?

Beginners, people with sensitive skin, rosacea or eczema, and anyone using prescription retinoids should ask their dermatologist before combining.

What if my skin gets irritated using Retinol and Glycolic Acid?

Stop the stronger active, keep a gentle cleanser, moisturizer and sunscreen, and reintroduce one product at a time once skin calms down. See a dermatologist if irritation persists.

Sources

Studies and reviews on these ingredients and, where available, on this specific combination.

  1. Kafi R, et al. Improvement of naturally aged skin with vitamin A (retinol). Arch Dermatol. 2007;143(5):606-612.
  2. Kornhauser A, Coelho SG, Hearing VJ. Applications of hydroxy acids: classification, mechanisms, and photoactivity. Clin Cosmet Investig Dermatol. 2010;3:135-142.
  3. Kaidbey K, et al. Topical glycolic acid enhances photodamage by ultraviolet light. Photodermatol Photoimmunol Photomed. 2003;19(1):21-27.

Last reviewed: . Not medical advice.

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