SOLARAY L-Lysine, 180 Tablets

Customers find the lysine supplement effective for preventing cold sores and boosting the immune system. The product receives positive feedback for its quality, ease of swallowing, and value for money. While some customers report it doesn't upset their stomach, others experience digestive issues. The pill size and dosage receive mixed reviews, with one customer noting it requires multiple pills to reach the 1000mg dose.