Established 1971 Certified Gluten-Free Promotes Collagen and Tissue Renewal in Lips and Mouth Includes Vitamin B6 for Utilization Dietary Supplement Kosher Parve Our Pledge to Integrity Authenticity Cleanliness Freshness Consistency Accuracy Amino acids are the building blocks of proteins. L-Lysine is an essential amino acid that supports the structure and function of collagen that is found in skin tissue. It promotes collagen renewal in particular in the lips and mouth. Country Life uses vitamin B6 to aid in utilization.