Clean the skin, apply thin layer of product with brush of cotton pad and leave to act. Then remove with water.
Duration of application
White and sensitive skin 5 minutes
White and thick skin 7 minutes
Tanned skin 10 minutes
Clean the skin, apply thin layer of Hifroxy-38 onto the desired area with a brush or a cotton pad, and leave it for the indicated time. Rinse out with water.
Note the duration of exposure may not just vary on skin type but also on other factors. For example, the skin exposed to sun or a skin that has received aggressive treatment against acne or laser treatment becomes more sensitive, irritated and less tolerant towards peeling. On the other hand if someone has white skin and has used acid based products before, it will tolerate peeling better than other skin that has never been treated with acid even though it maybe browner.
If the skin experiences irritation or redness then rinse the product off face with lots of water, even if the time of exposure was as suggested. Sometimes this treatment leaves the skin a little red but that is natural especially during depigmentation treatment.