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Acids - how long to leave on?
Hi all, i’ve been doing a bit of research on acids and wondering if you’re able to point me in the right direction. How do you determine how long an acid product can stay on skin to be effective without having adverse effects? This is for skincare, and not medical grade.
For the sake of being specific lets say Product 1 is a mild acid peel with AHAs @ 10%, and Product 2 is a face mask with Salicylic acid at 2%. Both products used for the purpose of exfoliation and brightening. Specific answers welcome! But also, interested in how one goes about determining the length of application, based on different acid concentrations for a particular type of acid (glycolic, lactic, salicylic, etc). I’m aware some are ‘stronger’ than others but failing to tie this in with application time. Thank you
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