BHA is beneficial for those with oily or acne-prone skin because of its oil-solubility, which allows it to clear clogged pores. By exfoliating the skin, BHA helps remove dead skin cells and provides a smoother skin surface. It reduces redness and swelling, given its anti-inflammatory properties while reducing pore size, removing blackheads and improving skin texture. BHA also promotes collagen formation and cell turnover, reducing wrinkles, fine lines and hyperpigmented spots. Additionally, BHA’s antimicrobial properties help in minimizing acne formation.
BHA is a hydroxy acid used in skincare products with salicylic acid being the most popular type. It is oil-soluble and known for its exfoliating and anti-inflammatory properties.
Because salicylic acid (BHA) can exfoliate and infiltrate the pores, it is typically safe for all skin types and tones, but it works especially well on oily and acne-prone skin. To prevent possible irritation, people with dry or sensitive skin should use it sparingly and start with lower dosages. BHA can be used to treat post-inflammatory hyperpigmentation because it is safe for people with darker skin tones. Patients should be aware that BHA can cause increased sun sensitivity and should use sunscreen daily to protect skin from UV damage.
BHA should be avoided in patients with rosacea or eczema. Additionally, BHA should not be used in concentrations above 2% in pregnant or nursing women due to the potential risk of systemic absorption. BHA can exacerbate dryness and irritation when used in combination with other potent exfoliants or active substances such as retinoids.
Moghimipour E. Hydroxy Acids, the Most Widely Used Anti-aging Agents. Jundishapur J Nat Pharm Prod. 2012 Winter;7(1):9-10. Epub 2012 Jan 4.
Kornhauser A, Coelho SG, Hearing VJ. Applications of hydroxy acids: classification, mechanisms, and photoactivity. Clin Cosmet Investig Dermatol. 2010 Nov 24;3:135-42.
Get instant access to our regular newsletter with tips for running your practice and expanding your career in dermatology!