Kirkland Signature is Costco Wholesale's premium private-label brand, offering a wide range of vitamins and nutritional supplements manufactured under rigorous quality controls. Many products carry the USP Verified mark from the United States Pharmacopeia, an independent organization that sets strict quality and purity standards. All supplements are designed to meet or exceed the quality of national brands at an exceptional value for Costco members.
Founded
1995
Country
US
Products
26
Avg. Score
80.8/100
Kirkland Signature at a glance — here's what our analysis found.
Based on our analysis of 26 products from Kirkland Signature:
Found in 9 products
Found in 9 products
Found in 7 products
Found in 6 products
Found in 5 products
Found in 5 products
Found in 5 products
Found in 5 products
Found in 5 products
Found in 5 products
Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any supplement regimen.