What it is: A pH-optimized leave-on scalp serum designed to extend time between washes and control excess oil and odor.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Color Safe- Oily ScalpKey Benefits: - Balances scalp pH to prevent excess oil production- Extends time between washes- Stabilizes the scalp to be less oily over timeHighlighted Ingredients:- 4% Niacinamide: A topical vitamin B3 that balances oil levels.- 5% Hyper-Fermented Green Tea Blend: Molecular antioxidant targets excess oil.- 2% Bio-Fermented Astragalus: Supports collagen and hyaluronic acid production for moisturized skin.Ingredient Callouts: This product is vegan, gluten-free, cruelty-free, and comes in recyclable packaging.What Else You Need to Know: Niacinamide is a water-soluble form of vitamin B3. Niacinamide is an antioxidant and anti-inflammatory ingredient to support regulated oil production.Act+Acre uses bio- and hyper-fermented ingredients in this formula to create a multitude of smaller molecules that can better penetrate the scalp for boosted efficacy and pH optimization of the scalp microbiome.Fragrance Description: Fragrance-free.Clean at Sephora is our commitment to offering effective products without certain ingredients, such as parabens, sulfates, phthalates, and mineral oils. Learn more here.