What is LHA?
LHA — short for lipo-hydroxy acid, with the INCI name capryloyl salicylic acid — is a chemical exfoliant developed by L'Oréal research as a gentler alternative to traditional salicylic acid. It's essentially salicylic acid with a fatty acid chain (caprylic acid) attached, which makes the molecule significantly larger and even more lipophilic (oil-loving). That bigger, fattier structure means LHA penetrates into the pore lining more slowly and evenly, with less surface irritation than salicylic acid at equivalent concentrations.
LHA works through the same basic mechanism as BHA — it targets the oil and keratin plugs inside pores, dissolving them to reduce blackheads, whiteheads, and clogged texture. Because of its slow action, it's particularly useful for users who want the pore-clearing benefit of BHA but have found salicylic acid too drying or stinging.
Why is LHA better tolerated than Salicylic Acid?
The slow, even penetration is the main reason. Where 2% salicylic acid can cause immediate dryness and peeling in the first week, LHA typically produces mild tingling at most. Clinical studies comparing LHA to salicylic acid in acne patients consistently show similar efficacy with lower reported irritation.
A few useful notes:
- Still a salicylate — if you have a severe aspirin or salicylate allergy, patch test before using LHA.
- Slower onset — LHA results take longer to see than salicylic acid results, typically 4–8 weeks.
- Pregnancy — because it's a salicylate derivative, LHA should be used cautiously in pregnancy. Check with your doctor; most dermatologists consider low concentrations (under 1%) acceptable, but some prefer alternatives like azelaic acid.
- Sun sensitivity — like all chemical exfoliants, LHA increases UV vulnerability. Daily SPF required.
The Cosmetic Ingredient Review has reviewed LHA and rated it safe at cosmetic concentrations.
In Indian products 🇮🇳
LHA entered the Indian market mainly through imported European brands and is less common in Indian D2C lines than standard salicylic acid. The most available LHA products in India are from La Roche-Posay Effaclar (several products in the line use LHA), CeraVe Resurfacing Retinol Serum (combines LHA with retinol), and CeraVe SA Smoothing Cream (uses a related LHA/SA combination). Indian brands are beginning to experiment: Re'equil, Brinton, and Foxtale have formulations in development, though LHA has not yet gone mass-market in Indian D2C lines.
Indian-context use cases:
- Stubborn blackheads on nose and chin — particularly effective for users whose blackheads keep coming back despite regular salicylic acid use.
- Adult acne with sensitive skin — users who find 2% salicylic too drying but still need pore-clearing action.
- Anti-aging with clogged pores — LHA pairs well with retinol, attacking both surface texture and deep pore plugs.
- Humid Indian climates — works well in tropical oily-skin conditions where pores clog easily.
- Rosacea-adjacent skin with comedones — the milder action is usually tolerated by users with background redness.
Because LHA is more expensive than salicylic acid, it's mostly found in premium formulations rather than budget Indian skincare.
How to use LHA well
- Start 2–3 times per week — Even though LHA is gentler than salicylic, build tolerance gradually.
- Apply at night — Standard exfoliant timing.
- Pair with ceramides and niacinamide — Supports the barrier.
- Daily SPF 50 — Non-negotiable.
- Expect slower results — LHA takes 4–8 weeks to show visible improvement.
Safer alternatives
- For faster acne results: Salicylic acid 2% is more immediately effective though more drying.
- For pregnancy: Azelaic acid is safer and works for comedonal acne.
- For sensitive skin without acne concerns: Mandelic acid or PHAs cover surface exfoliation without pore penetration.
- For severe acne: Prescription retinoids (adapalene, tretinoin) or benzoyl peroxide are stronger.