Swanson L-Lysine Amino Acid Supplement for Stress-Prone Adults Seeking Nervous System and Immune Support – 500 mg Free Form (300 Capsules)

Customers report that the L-Lysine supplement works wonders for cold sores and boosts the immune system, with one customer noting it helps with rheumatoid arthritis. The product receives positive feedback for its quality, value, and ease of use, with customers finding it easy to swallow. Customers like the ingredients, with one mentioning there are no fillers, and consider it a staple in their supplement program. Opinions about the pill size are mixed.