Glycolic acid is one of the best-known alpha hydroxy acids, or AHAs. It is used in exfoliating skincare designed to improve the appearance of dullness, rough texture and uneven-looking tone.
What is glycolic acid?
Glycolic acid is an alpha hydroxy acid used in toners, serums, peels and pre-soaked pads. Its role in cosmetic skincare is primarily exfoliation of the skin surface.
What can glycolic acid help improve the appearance of?
- Dull-looking skin
- Rough surface texture
- Uneven-looking tone
- Visible post-blemish marks
How often should glycolic acid be used?
There is no universal frequency because products vary significantly in concentration, pH and format. Follow the directions for the specific formula rather than assuming every glycolic acid product should be used daily.
Signs you may be over-exfoliating
- Persistent stinging
- Unusual tightness
- Peeling or flaking
- Increased visible redness
- Skin suddenly reacting to normally tolerated products
Can glycolic acid be used with retinol?
Both can be useful in an overall skincare routine, but layering them on the same night can be too irritating for some people. Alternating evenings is often a simpler approach.
Can glycolic acid be used with vitamin C?
It may be possible depending on the formulas and your skin tolerance, but there is usually no need to stack multiple strong treatment steps at once. A simple morning/evening split can be easier to manage.
Sunscreen matters
Any routine focused on exfoliation and uneven-looking tone should include daily sunscreen.
Related guides
Explore Dark Spots & Uneven Tone →
This guide is for general cosmetic skincare education only and is not medical advice. Individual skin responses vary. Follow the directions supplied with each product, introduce new active products gradually, and seek advice from a qualified healthcare professional if you have persistent irritation or a skin condition.
References & further reading
See Jymoor Skincare Guide Editorial Standards for how we select and review educational sources.
