Why do we recommend collagen? 13 g of collagen per serving With vitamins C and E With hyaluronic acid Lactose-, gluten-, and sugar-free Feel refreshed and rejuvenated! BioTechUSA Collagen provides both hyaluronic acid and collagen. We have also added vitamin C, which also contributes to maintaining the normal state of collagen in the body, not only in the skin and blood vessels, but also in bones, cartilage, teeth, and gums. Vitamin E plays a role in protecting cells from oxidative stress. Translated with DeepL.com (free version)BioTechUSA