L-Lysine — Essential Amino Acid for Collagen Synthesis & Immune Support

L-Lysine is an essential amino acid that cannot be synthesized by the body and must be obtained through diet or supplementation. Lysine is a critical building block for collagen synthesis, supports healthy calcium absorption, and plays a key role in immune function. Lysine also competes with arginine for cellular uptake — making it particularly relevant for those managing herpes simplex virus (HSV) outbreaks, as HSV replication requires arginine.

Key Benefits

Collagen synthesis — lysine is an essential building block for collagen cross-linking in skin, bone, and connective tissue
Immune support — supports healthy immune function and antiviral defense
Calcium absorption — lysine supports intestinal calcium absorption and reduces urinary calcium loss
Antiviral support — competes with arginine to limit HSV replication; traditionally used for cold sore prevention
90-capsule supply — a full 1-3 month supply at standard dosing

Why Pure Encapsulations?

Pharmaceutical-grade L-lysine in a hypoallergenic capsule. Third-party tested for purity and potency.

Consult your healthcare provider before use, especially if pregnant, nursing, or taking medications. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.