PoreIQIngredient compatibility
Can you use retinol and glycolic acid together?
Use at different times
Usually not in the same routine. Most people get better results using retinol and glycolic acid at different times.
Why
Stacking an exfoliating acid with a retinoid is one of the most common causes of over-exfoliation.
How to use them
Use them on different nights — for example, glycolic acid once a week and retinol on the other nights — with a barrier moisturizer.
At a glance
Retinol
- What it does
- A vitamin A derivative that speeds up skin cell turnover. It is one of the most studied ingredients for texture, fine lines and clogged pores.
- When to use
- PM
- Main watch-out
- Dryness, flaking and stinging are common in the first weeks ("retinization")
Glycolic Acid
- What it does
- The smallest alpha hydroxy acid. It dissolves the bonds between dead surface cells to reveal smoother, brighter-looking skin.
- When to use
- PM
- Main watch-out
- Stinging and redness, especially at higher strengths
General layering tips
- Introduce one new active at a time and give it 2–4 weeks.
- Patch test new products on a small area for a few days.
- If your skin stings, burns or peels, stop the newest product and simplify.
- Wear broad-spectrum SPF 30+ daily when using retinoids or acids (AAD sunscreen guidance).
Frequently asked questions
Can you use retinol and glycolic acid together?
Usually not in the same routine. Most people get better results using retinol and glycolic acid at different times. Use them on different nights — for example, glycolic acid once a week and retinol on the other nights — with a barrier moisturizer.
Which goes first, retinol or glycolic acid?
Use them on different nights — for example, glycolic acid once a week and retinol on the other nights — with a barrier moisturizer.
Related combinations
- Retinol and Vitamin CKeep apartBoth are strong, and using them back-to-back increases the chance of irritation.
- Retinol and NiacinamideYesNiacinamide supports the skin barrier and is well tolerated, so it can help offset some of the dryness retinol causes.
- Retinol and Hyaluronic AcidYesHyaluronic acid only hydrates.
- Retinol and Salicylic AcidKeep apartBoth increase cell turnover and can dry the skin.
- Retinol and Lactic AcidKeep apartLactic acid is gentler than glycolic, but combined with retinol it can still overwhelm the skin.
- Retinol and Benzoyl PeroxideKeep apartBenzoyl peroxide can break down some retinoids, and both are drying.
- Retinol and CeramidesYesCeramides help rebuild the barrier that retinol can stress.
- Retinol and PeptidesYesPeptides are gentle and do not interfere with retinol.
Formulas differ: concentration, pH and your own skin all matter. This is general cosmetic information, not medical advice. Last updated 2026-10-22.