This promotional set from Arkopharma Laboratories is a food supplement specifically designed to restore strength, vitality, and shine to weakened hair and nails. Its comprehensive formula combines sulfur-containing amino acids (cystine and methionine), B-complex vitamins, and zinc to stimulate keratin synthesis and promote healthy growth. This cost-effective pack includes a 3-month supply box (180 capsules) along with a free 1-month supply box (60 capsules), providing a complete 4-month care program.