Niacinamide 10% + Zinc 1% 10% nicotinamide + 1% zinc essence, water quality substrate, contains nicotinamide (vitamin B3) and zinc composition.High-strength vitamin and mineral blemish formula that visibly regulates sebum and minimizes pores. For persistent acne-related conditions, we recommend the use of Benzoyl Peroxide and/or Retinoic Acid. DECIEM doesn't recommend ongoing use of BHA such as Salicylic Acid for persistent blemishes. For temporary improvement in appearance of blemishes, Salicylic Acid would help. This formulation can be used alongside acne treatments if desired for added visible skin benefits. This products have NO safety seal.Do not use with products containing pure vitamin C (ascorbic acid) Contraindications: If topical Vitamin C is used as part of skincare, it should be applied at alternate times with this formula (ideally Vitamin C in the PM and this formula in the AM). Otherwise, Niacinamide can affect integrity of pure-form Vitamin C (L-Ascorbic Acid).