Be
Betaine Salicylate
Betaine SalicylateExfoliant
A salicylic acid compound in Korean toners sold for blackheads. Little research backs that up. Use it with the same care as salicylic acid.
What it does
It’s salicylic acid paired with betaine. Brands call it gentler, but that comes from lab tests and the ingredient maker’s own claims.
The EU’s ingredient database lists it as an exfoliant (helps remove dead skin cells).European Commission, CosIng (© European Union, CC BY 4.0) · uses put in plain words by Drop ↗
The evidence, graded
expert consensusTopical salicylic acid at 2% or below is generally considered safe in pregnancy when used on small areas. Higher concentrations, large-area leave-on or under-occlusion use, and oral salicylates should be avoided.Bozzo 2011 · Canadian Family Physician ↗
expert consensusDuring an active eczema flare, the usual advice is to hold actives (retinoids, AHAs, BHAs, vitamin C) and focus on barrier repair until the skin is calm. Neither source read here tests an active in eczema — the hold is expert consensus, not a measured result. Consult a derm if flares are recurrent.Eichenfield 2014 · Journal of the American Academy of Dermatology ↗
expert consensusIf skin is reactive, peeling, stinging, or burning unexpectedly, pause all actives — retinoids, benzoyl peroxide, AHAs, BHAs and vitamin C — and rebuild the barrier with a simple cleanser, a moisturizer and SPF for 2–4 weeks before re-introducing actives one at a time.Lodén 2003 · American Journal of Clinical Dermatology ↗
moderateWang et al. (2025) made a compound of betaine and salicylic acid. For 28 days, 30 people with acne used a 3% solution of it at night, and a different 30 used salicylic acid in an equal molar amount. After 28 days, acne fell by 37.51% with the compound and by 24.01% with salicylic acid; at 14 days, the difference was not significant. The authors name the small number of people and a plain solution that is not a real product formula as limits.Wang 2025 · RSC Medicinal Chemistry ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Also known as
BHA
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