the fair C-Gleam Vegan Vitamin C Serum 30 ML +2% Niacinamide 30 ml It helps regulate the appearance of dark skin thanks to its anti-blemish ingredients, high stability vitamin C and niacinamide, licorice extract and rice extract. It helps the skin regain its bright appearance and natural shine. Usage: Apply a few drops of serum to clean skin by massaging. Apply twice a day, morning and evening. Regular use is recommended. Warning: Keep out of reach of children, away from sunlight, in a dry and cool environment. We recommend that you try it first on the inside of your wrist and consult your doctor in case of an allergic reaction. For external use. 1)What is the ingredient list? -Water, Polysorbate 20, Ethyl Ascorbic Acid, Niacinamide, Gylcerin, Panthenol, Phenoxyethanol, Ethylexylglcerin, Oryza Sativa (Rice) Callus Culture Extract, Glycyrrhiza Glabha (Licorice) Root Extract, Hydroxyethylcellulose, Saccharide Isomerate, Tocopheryl Acetate, Allantoin, Xanthan Gum, Tetrasodium Edta. 2)Should we keep it in the refrigerator? -It is sufficient to store it at room temperature in a dry and moisture-free environment away from sunlight. 3) What percentage of vitamin C is in it? -Contains 2% vitamin C. 4)What skin types is it suitable for? -Suitable for all skin types. 5)Can it be used in summer? -We recommend that you use it at night during the summer months and support it with sunscreen during the day. 6)Which serum should I use afterwards? -Afterwards, you can use peptide-containing serums and hyaluronic acid serum on moist skin.