Lactic Acid, L-
L-lactic acid is a naturally occurring alpha-hydroxy acid used topically in dermatology and skincare. It works as an exfoliant to remove dead skin cells and improve skin texture, commonly used for dry skin conditions and anti-aging purposes.
A topical alpha-hydroxy acid exfoliant used to treat dry skin and improve overall skin texture and appearance.
Key facts at a glance
- RxNorm
- 2462499
- Generic
- Lactic Acid, L-
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Topical treatment for xerosis (dry skin), ichthyosis, hyperkeratosis, and general skin exfoliation; also used in cosmetic formulations for anti-aging and skin tone improvement.
As an alpha-hydroxy acid, L-lactic acid breaks down the desmosomes (cellular adhesion structures) between dead skin cells, promoting exfoliation and accelerated cell turnover. It also acts as a humectant, attracting moisture to the skin.
May cause skin irritation, burning, or stinging, especially with higher concentrations. Increases photosensitivity—daily sunscreen use is recommended. Start with lower concentrations (3-5%) to assess skin tolerance. Avoid contact with eyes and mucous membranes.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 28, 2026. · Read our editorial policy