The Ordinary Niacinamide 10% + Zinc 1% is a lightweight, water-based serum that helps to reduce the appearance of skin blemishes and congestion. This 30ml bottle of serum contains a high concentration of niacinamide (vitamin B3) at 10%, and zinc at 1%. Niacinamide helps to brighten the skin and reduce the appearance of uneven skin tone, while zinc helps to regulate the production of sebum, making it a great choice for those with oily or acne-prone skin. This serum can be used daily, morning or night, and can be applied before moisturizer. It is free from parabens, sulphates, mineral oil, methylchloroisothiazolinone, methylisothiazolinone, animal oils, coal tar dyes, formaldehyde, mercury, oxybenzone. It is also vegan and cruelty-free.The ingredient list for The Ordinary Niacinamide 10% + Zinc 1% - 30ml includes:Aqua (Water)Niacinamide PentyleneGlycol Zinc PCATamarindus Indica Seed GumXanthan Gum Isoceteth-20EthoxydiglycolPhenoxyethanolChlorphenesinIt is important to note that ingredients may change over time, so it's always best to check the product packaging or consult with the manufacturer for the most up-to-date list of ingredients.