Forms Comparison
| Form | Bioavailability | Best For |
|---|---|---|
| L-Lysine HCl | High | Most common supplemental form; well-absorbed and cost-effective |
| L-Lysine (free form) | High | Standard capsule and tablet formulations |
Types of L-Lysine: Forms & Bioavailability
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L-Lysine HCl
Bioavailability: High. Best for: Most common supplemental form; well-absorbed and cost-effective.
L-Lysine (free form)
Bioavailability: High. Best for: Standard capsule and tablet formulations.
References
- Griffith RS, Walsh DE, Myrmel KH, et al. (1987). Success of L-lysine therapy in frequently recurrent herpes simplex infection. Dermatologica. DOI PubMed
- Civitelli R, Villareal DT, Agnusdei D, et al. (1992). Dietary L-lysine and calcium metabolism in humans. Nutrition. PubMed
- Smriga M, Ando T, Akutsu M, et al. (2007). Oral treatment with L-lysine and L-arginine reduces anxiety and basal cortisol levels in healthy humans. Biomedical Research. DOI PubMed