This time release AHA Overnight At-Home Peel contains true 10% encapsulated Glycolic Acid Time Release Technology (crystal encapsulation) which minimises any irritation caused from powerful levels of glycolic acid The 10% free glycolic acid at-home peel is a powerful formula with minimal tingling, and no downtime. It is ideal for use to prolong the results of a peeling/facial course. It can also be used as an entry-level at home peel for customers nervous about their first peeling experience.