Peak Performance L Lysine 1000mg + Monolaurin 500mg Supplement for Immune Support - High Potency L-Lysine for Lips, Skin, & Health - 2-in-1 Bioavailable Supplements for Men and Women - 60 Capsules

Clinical trials typically use 1-3 g daily. Peak Performance L-Lysine 1000mg + Monolaurin 500mg delivers 1,000mg L-Lysine + 500mg Monolaurin per serving, which we classify as Therapeutic relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Capsule vs alternatives), dose adequacy, and third-party testing.

Yes — Third-Party Tested. Third-party testing verifies ingredient identity and label accuracy.

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Both lysine and monolaurin have antiviral properties that could theoretically interact with prescription antivirals. If you take acyclovir, valacyclovir, or other antiviral medications, consult your doctor before combining them with this supplement. No serious interactions have been documented at these doses.

L-lysine is an essential amino acid found in food and is generally considered safe. However, the monolaurin component has limited pregnancy safety data. Pregnant or breastfeeding women should consult their healthcare provider before taking this combination formula.

L-lysine at 1000mg is well-tolerated by most adults. Mild GI discomfort, nausea, or diarrhea may occur in some users. Monolaurin at 500mg may cause mild digestive symptoms as well. Start with one serving to assess tolerance.

Peak Performance L-Lysine + Monolaurin is formulated in capsule form and is third-party tested for purity. Check the label for specific allergen statements regarding gluten, soy, dairy, and tree nuts, as manufacturing facility cross-contamination warnings may apply.

L-lysine has been used for long-term herpes simplex prophylaxis in clinical studies lasting months. The 1000mg dose matches the Griffith et al. protocol used for ongoing prevention. Long-term use at this dose is generally well-tolerated, though periodic reassessment with your doctor is advisable.

Each serving provides 1000mg L-lysine and 500mg monolaurin. This matches the minimum clinical dose of lysine studied for cold sore prevention (Griffith et al., 1987). For active outbreaks, some practitioners recommend increasing to 2-3 servings daily.