Chemical Exfoliation (Term)

Chemical Exfoliation (Term) — the use of acids or other soluble agents to dissolve the bonds holding dead cells together on the skin's surface, allowing them to shed without scrubbing. It relies on ingredients such as alpha and beta hydroxy acids and is valued for its even, controllable action across the skin.

Key points

• Alpha hydroxy acids like glycolic and lactic acid are water-soluble and work primarily on the skin's surface.
• Beta hydroxy acids such as salicylic acid are oil-soluble and can penetrate into pores.
• The effectiveness of chemical exfoliants depends on factors like concentration, pH, and formulation.
• Chemical exfoliation can increase sun sensitivity, making daily sunscreen use important during regular use.

Frequently asked

What is the difference between AHAs and BHAs?

AHAs are water-soluble and mainly exfoliate the skin surface, while BHAs are oil-soluble and can work inside oil-filled pores, making them useful for congestion-prone skin.

Does chemical exfoliation cause peeling?

At typical cosmetic strengths it usually produces gradual, invisible shedding rather than visible peeling, though higher concentrations can cause more noticeable flaking.

Related topics

• What Is a Humectant?
• What Is the Skin Barrier?
• Physical Exfoliation (Term)
• Enzymatic Exfoliation (Term)
• Retinaldehyde (Term)
• Reef-Safe (Term)
• Oxidative Stress (Term)
• Melanin (Term)

This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.