Take on acne, oil, and impurities with this pore-purifying treatment set. Clarify and balance pores with our potent yet gentle toner that won't irritate or strip skin. Help clear skin and improve the look of post-blemish marks with our potent, clinically proven retinoid. Draw out impurities and deep clean with our clay mask that won't harden or tighten. The clinical results speak for themselves: - Retinal For All includes the most powerful non-prescription retinoid, proven to improve breakouts1 - Retinal For All delivers results without irritating skin while improving the skin barrier2,3 This kit includes: - The Good Acids Pore Toner (100ml) - Retinal For All Renewing Serum (30ml) - Pore Proof Perfecting Clay Mask (80ml) - Ingredient-level clinical study results - “Zero irritation” claim refers to a near 0% water loss to skin, post formulation application, as measured in a 4-week independent clinical study using a Tewameter, indicating virtually no skin-barrier disruption. - “Improved skin barrier” claim refers to a 67.62% improvement of the skin barrier, as measured in a 12-week independent clinical study using a Tewameter, indicating 67.62% less transepidermal water loss (TEWL).