Using Capryloyl Salicylic Acid (LHA) in Cosmetic Formulations

Capryloyl Salicylic Acid, or LHA, is a type of Hydroxy Acid used for skin exfoliation and acne treatment. Generally, LHA is used as an ingredient in various cosmetic formulations and is not applied directly to the skin in its pure powder form.

According to the information for pure Capryloyl Salicylic Acid (LHA) powder, the recommended usage rate in cosmetic formulations is 0.5-5%, but it is advised not to exceed 2% as high concentrations can cause significant skin irritation.

Therefore, if the product you mentioned is labeled "Active LHA 10%" and is a 20-gram powder, it is not recommended to apply it directly to the face at a 10% concentration. This is significantly higher than the recommended usage rate and can cause severe skin irritation.

A product labeled "Active LHA 10%" might mean:

• It is a finished formulation or a base containing LHA at a 10% concentration, designed for specific use (e.g., needing further dilution or being a spot treatment product).
• It is LHA in a solution form with an active LHA concentration of 10% (though typically pure LHA powder has high purity).

The advice from cosmeceutical7 stating that LHA is used at a similar rate to BHA, 0.5-2.0%, is consistent with the recommended usage rate for LHA powder (not exceeding 2% to minimize irritation).

For the most accurate and safe usage, you should directly ask the supplier of the "20 กรัม (Active LHA 10%)" product to confirm what type of LHA product it is (pure powder, solution, or base) and how it is intended to be used correctly.