NOW Pet Health, L-Lysine Supplement, Powder, Formulated for Cats, NASC Certified, 8-Ounce

Price: $16.99 - $13.04
(as of Mar 10, 2026 21:00:57 UTC – Details)


NOW® Pets L-Lysine Powder helps support a healthy immune system, normal respiratory health, and ocular health. For use in Cats only. Perfect for multi-cat households and boarding.
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 3 x 3 x 5.5 inches; 10.16 ounces
Item model number ‏ : ‎ 4450
Date First Available ‏ : ‎ September 19, 2015
Manufacturer ‏ : ‎ NOW
ASIN ‏ : ‎ B016WG7UF8
Best Sellers Rank: #26,066 in Health & Household (See Top 100 in Health & Household) #27 in L-Lysine Nutritional Supplements #1,958 in Sales & Deals
Customer Reviews: 4.5 4.5 out of 5 stars (3,448) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
IMMUNE SYSTEM SUPPORT FOR CATS: L-Lysine supports a healthy immune system, normal respiratory health, and ocular health
PURE POWDER: Our l-lysine powder is 100% pure, safe, and free of any fillers
NASC CERTIFIED: Certified by the National Animal Supplement Council (NASC), an organization that protects and enhances the integrity of the animal health product industry
PET-PARENT APPROVED: Manufactured with the same attention to quality and detail NOW puts into their supplements intended for humans, from the sourcing of top-quality ingredients to finished product testing
Packaged in the USA by a family owned and operated company since 1968