Collagen is the major structural protein in healthy joints and the most abundant protein in the human body. It is responsible for maintaining the strength and flexibility of bones, joints, skin, tendons, ligaments, hair, nails, blood vessels and eyes, among other tissues throughout the body. Doctor’s Best Collagen Types 1 and 3 contains pure collagen protein Peptan®, which contributes to the growth and maintenance of healthy tissues. Vitamin C is added to the formula as an essential nutrient required for collagen synthesis by the body. • Helps support healthy hair, skin, nails and joints • Helps contribute to the growth and maintenance of healthy tissues • Provides improved bioavailability due to the low molecular weight of component peptides Suggested Adult Use: Take 4 capsules twice daily on an empty stomach at least 30 minutes before meals, or as recommended by a nutritionally-informed physician. Do not mix with other protein supplements.