This formula is the most active with 25% glycolic acid, along with 5% lactic acid, activated charcoal and willow herb. Meant for stubborn, resistive, or thick skin that’s tolerant to Glycolic Detox Charcoal Peel Level 2, this peel will break through resistive skin to a reach deeper epidermal level to unclog stubborn pores, soften deep pores, improve the appearance of acne, fine lines and wrinkles, lighten moderate levels of hyper-pigmentation, and detoxify. (50 Min)