Betaine Salicylate
A plant-derived BHA alternative popular in K-beauty for its gentler action. Releases salicylic acid slowly in skin, reducing peak irritation.
Skin enzymes cleave the betaine ester, slowly releasing salicylic acid for exfoliation. The slower release lowers irritation.
- Gentle BHA action
- Pore decongestion
- Lower irritation than SA
- Suitable for sensitive acne-prone skin
What the evidence supports.
- Sensitive
- Combination
- Acne-prone
No notable contraindications reported.
Apply early in routine, toner/essence step.
Concentration range in well-formulated products: 2%–4%
Year-round.
Betaine derived from sugar beet.
No specific deficiency signals tracked for this ingredient.
Ideal for clients who can't tolerate 2% salicylic acid leave-ons.
The research behind Betaine Salicylate.
Every claim on this page traces to published research. Findings below are drawn from randomized trials and systematic reviews, each links to the study on PubMed.
American Journal of Clinical Dermatology, 2020
Journal of Cutaneous Medicine and Surgery, 2020
Journal of Advanced Research, 2015
Dermato-Endocrinology, 2011
No flagged conflicts. Still, patch-test new actives.
Sign up to see how Betaine Salicylate fits your skin archetype and personalised protocol.