Retinol + AHA
Retinol + AHA — a pairing of a renewing vitamin A derivative with alpha hydroxy acids such as glycolic or lactic acid, which exfoliate the skin's surface. Because both increase turnover and can be drying, combining them requires care to avoid over-exfoliation and irritation.
Key points
- AHAs are water-soluble exfoliants that loosen surface cells, while retinol promotes deeper cell renewal.
- Using both together can raise the risk of irritation, dryness, and a compromised barrier.
- Many people alternate them on separate nights rather than layering them at once.
- Both can increase sun sensitivity, making daily sunscreen especially important.
Frequently asked
Can I use retinol and an AHA together?
It is possible for some skin types, but because both increase turnover and can irritate, alternating them on different nights is a common, gentler approach.
What are the risks of combining retinol and AHAs?
Using them together can lead to over-exfoliation, dryness, redness, and barrier disruption, so gradual introduction and monitoring tolerance are important.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
