L-Lysine
⤢ 3D
A lysine supplement used for collagen support and cold-sore prevention.
Benefits
Essential amino acid supporting collagen and calcium absorption, and studied for reducing cold-sore (herpes) frequency.
Risks
Generally safe; high doses may cause GI upset and, rarely, affect kidney function. Best balanced against arginine intake.
Informational only — not medical advice.
Research (4)
- Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance Mendias et al. (2026) PubMed ↗
- L-lysine dietary supplementation for childhood and adolescent growth: Promises and precautions Zhao et al. (2025) PubMed ↗
- L-carnitine--metabolic functions and meaning in humans life Pekala et al. (2011) PubMed ↗
- Lisdexamfetamine Blick et al. (2007) PubMed ↗
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