Some By Mi AHA BHA PHA 30 Days Miracle Serum is a lightweight moisturizing serum that soothes and brightens irritated skin. Formulated with 14.5% centella asiatica extract and 10,000 ppm of tea tree leaf water, AHA, BHA, and PHA, it helps promote collagen production, renew skin cells, and reduce inflammation while also gently rids the skin of dead skin cells and other impurities. For maximum results, use with the Some By Mi AHA BHA PHA 30 Days Miracle Cleansing Bar and Some By Mi AHA BHA PHA 30 Days Miracle Toner. HOW TO USE Make sure to shake the bottle before using. After the toner and essence step of your routine, apply 3 to 4 drops of the Some By Mi AHA BHA PHA 30 Days Miracle Serum onto the skin, and spread evenly. Gently pat to aid absorption. INGREDIENTS Key Ingredients: AHA/BHA/PHA/, Teatree leaves essence, Plant oil complex, centella extract. NOTE: Ingredients are subject to change at manufacturer's discretion. For the most complete and up-to-date list of ingredients, please refer to the product packaging.