Chemical Exfoliant
Chemical Exfoliant — a product that uses acids or other active compounds to loosen the bonds between dead surface cells so they shed more easily, without manual scrubbing. Common types include alpha hydroxy acids, beta hydroxy acids, and polyhydroxy acids, each working on the skin's surface or within pores.
Key points
- Chemical exfoliants dissolve the intercellular bonds holding dead cells together rather than physically buffing them away.
- AHAs such as glycolic and lactic acid work mainly on the surface, while the BHA salicylic acid can penetrate oily pores.
- They can improve the look of texture, tone, and clogged pores when used at appropriate concentrations and frequencies.
- Exfoliating acids can increase sun sensitivity, so daily sunscreen is especially important when using them.
Frequently asked
How often should I use a chemical exfoliant?
Frequency depends on the acid, its strength, and your skin's tolerance, but many people start with two to three times per week. Introduce it gradually and reduce use if you notice irritation.
What is the difference between AHAs and BHAs?
AHAs are water-soluble and work on the skin's surface to smooth texture and tone, while the BHA salicylic acid is oil-soluble and can work inside pores. Oily, acne-prone skin often favors BHAs.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
