Ingredients: Minoxidil 2% (1.2 grams of minoxidil in each bottle; i.e., 30mg/mL) Azelaic acid 1.5% (0.9 gram of Azelaic acid in each bottle; i.e., 15 mg/mL) Retinol 0.025% (0.25mg/mL) Biotin 0.1% (1mg/mL or 1000 mcg/mL) Niacin 1% (10mg/mL) Apple polyphenol 0.5% (5mg/mL) Ethanol propylene glycol Water