by staff » Thu Jun 14, 2018 4:52 pm
Hello, is there a chance to be irritated? But there are no other dangers. If it is not found to cause irritation (patch-test behind the ear or on the soft skin) it can be used. Using 5% will not have a higher benefit compared to using 1%, which is the level. optimal point that the manufacturer has tested and recommended
Staff - MySkinRecipes