LHA (lipohydroxy acid, capryloyl salicylic acid) is a derivative of salicylic acid with a fatty chain that makes it more lipophilic, allowing gradual, targeted exfoliation. It is used to improve skin texture, unclog pores, and address acne and signs of photoaging.
| Reported effect | How often | Notes |
|---|---|---|
Mild stinging or tingling on application | Common | Transient sensation, especially at higher concentrations or on compromised skin |
Dryness or flaking | Common | Result of increased epidermal turnover; managed with moisturizers |
Erythema (redness) | Uncommon | Usually mild and self-limiting |
Increased photosensitivity | Uncommon | Sun protection recommended during use as with other exfoliating acids |
Contact irritation or irritant dermatitis | Rare | More likely in sensitive skin or with overuse |
Allergic contact reaction | Very rare | Hypersensitivity to the compound is uncommon |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.