Salicylic acid (BHA) is a beta-hydroxy acid widely used in skincare for its oil-soluble exfoliating, acne-clearing, and anti-inflammatory properties. It penetrates deep into pores, dissolves sebum and dead skin cells, and is especially effective for oily and acne-prone skin types.
Name: Salicylic Acid (BHA)
Chemical Formula: C7H6O3
CAS Number: 69-72-7
Appearance: White crystalline powder
Solubility: Oil-soluble, limited water solubility
Source: Derived from willow bark or synthetically produced
Oil-soluble exfoliant for deep pore cleansing
Reduces acne, blackheads, and whiteheads
✨ Soothes inflammation and redness
Improves skin texture and radiance
Gentle keratolytic action promotes skin renewal
Industry | Function | Examples |
---|---|---|
Skincare & Cosmetics | Acne treatment, exfoliant | Toners, cleansers, serums, masks |
Dermatological Care | Treatment for clogged pores | Spot treatments, medicated gels |
Pharmaceuticals | Keratolytic agent for psoriasis/warts | Prescribed creams and lotions |
Mode of Action
Salicylic acid is lipophilic, allowing it to penetrate oily pores. It dissolves sebum and dead skin, unclogs pores, and has anti-inflammatory effects by inhibiting COX enzymes, reducing redness and swelling associated with acne.
Effective for oily and acne-prone skin
Reduces blackheads, whiteheads, and clogged pores
Gentle exfoliation improves overall skin texture
Anti-inflammatory properties calm breakouts
May cause dryness or peeling, especially for sensitive skin
Requires sunscreen use, as it increases photosensitivity
Not suitable for those allergic to aspirin (salicylates)
Q: Can salicylic acid be used daily?
A: Low concentrations (0.5–2%) are safe for daily use, but higher strengths may require alternate-day application.
Q: Is it better than glycolic acid (AHA) for acne?
A: Yes, for oily and acne-prone skin, BHA’s oil solubility makes it more effective for deep pore cleansing than AHA.
Q: Can it help with body acne?
A: Yes, it is widely used in body washes and sprays for back and chest acne.
Salicylic acid (BHA) is a powerful exfoliating and acne-fighting ingredient that deeply cleanses pores, reduces breakouts, and improves skin clarity. Its combination of keratolytic and anti-inflammatory actions makes it an essential treatment for oily and acne-prone skin.