L-Lysine
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
Microcrystalline Cellulose, Vegetable Cellulose, Stearic Acid, Silica, Vegetable Glycerin
Recommended Use
Suggested Use: As a dietary supplement for adults, take one (1) tablet up to two times daily, between meals, or as directed by a healthcare practitioner.
Warnings
If you are pregnant, nursing, taking any medications or have any medical condition, please consult your healthcare practitioner before taking any dietary supplement. Discontinue use and consult your healthcare practitioner if any adverse reactions occur. Keep out of reach of children. Do not use if outer bottle seal is missing or damaged.
Frequently Asked Questions
What is Solgar L-Lysine's Formulate score?
Solgar L-Lysine scores 91 out of 100 (grade A) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Solgar L-Lysine worth it?
Solgar L-Lysine scores 91/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Solgar L-Lysine?
Each serving contains L-Lysine (1000 mg). Serving size: 1 Tablet(s). 100 servings per container.
How do I take l-lysine?
Suggested Use: As a dietary supplement for adults, take one (1) tablet up to two times daily, between meals, or as directed by a healthcare practitioner.
Who makes L-Lysine?
L-Lysine is made by Solgar. See Formulate's full grade and product lineup for Solgar on its brand page.
Is Solgar L-Lysine third-party tested?
Solgar lists the following certifications and testing for this product: Non-GMO, Vegan, Vegetarian, Gluten-Free, Dairy-Free, Sugar-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.