A concentrated serum to promote thicker; fuller and healthier hair.Lightweight and innovative; MultiPeptide Serum For Hair Density deeply penetrates the scalp to encourage circulation and promote healthy hair follicles. Effortless to apply; this essential formula transforms the hair; leaving it longer and stronger than before. Vegan Cruelty free Alcohol; silicone; nut and gluten free One of our favourite hair oils for fine hair - find out why here Find out everything you need to know about The Ordinary’s MultiPeptide Serum For Hair Density here