Marine Collagen With Biotin + Vitamin C + Melatonin

Duozi Marine Collagen+, a 5-in-1 dietary supplement powder. Key Ingredients: It contains marine collagen, biotin, vitamin C, and melatonin. Benefits: It is marketed for skin health (improving elasticity, reducing wrinkles, promoting hydration), hair and nail support, potential joint and bone health benefits, and anti-aging effects by minimizing oxidative stress. Nutritional Information: The net weight of the product is 508g, with a serving size of 1.8g. Usage: It's recommended to take 2.5 to 15 grams daily of hydrolyzed collagen.