[what's in the kit?] THE PERFECT DERMA PEEL 6- 1oz/5ml THE PERFECT DERMA™ PLUS PLUS BOOSTER 6- 0.5oz/1ml 6- AFTER CARE BOX SETS two Post Peel Towelettes, a Post Peel Moisturizer (1oz.), a Mineral Perfection SPF 30 (1oz.) and post peel instructions. [what is the The Perfect Derma™ Plus Plus Booster?] this is our most Advanced booster featuring 4% Hydroquinone. Formulated for patients with oily, thick or resilient skin, it is highly effective for stubborn hyperpigmentation, acne scars, actinic keratosis, and sun damage on the face and body. Use The Perfect Derma™ Plus Plus Booster in conjunction with THE PERFECT DERMA™ PEEL. [KEY INGREDIENTS] -4% Hydroquinone -1% Hydrocortisone -TCA -Retinoic Acid -Kojic Acid -Salicylic Acid -Phenol -Vitamin C -GLUTATHIONE