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Kirkland Signature – Vitamin & Supplement Guide

Note From the Buyer

Each and every Kirkland Signature™ vitamin and nutritional supplement is carefully created to provide Costco members with the very best in nutritional quality at an exceptional value. Kirkland Signature products are designed to meet or exceed the quality of national brands, and they are guaranteed to deliver the highest standards for quality, purity and potency.

Teresa Thompson – Costco Pharmacy Buyer

Visit Your Costco Pharmacy For Your Prescription & Supplement Needs

At Costco Pharmacy, we believe in helping you save money on everything you buy – including the things you need to keep you healthy. That’s why we built our pharmacies with service and value as our two key goals. When you come to a Costco Pharmacy, you know you are getting your prescriptions filled accurately by highly trained pharmacists who value your health. Our pharmacists also administer flu shots and other immunizations at your convenience and at a great value. We also can fill your pet medications, often at a lower price than you’d find elsewhere.

USP Verified

Demonstrates Quality, Purity and Potency

Costco’s exclusive Kirkland Signature™ vitamin and nutritional supplements line is one of the best reasons to shop at Costco. Kirkland Signature vitamins and nutritional supplements are manufactured under rigorous quality controls to ensure the purity of the source ingredients and the potency of the final product. That’s why you’ll find the USP Verified mark on many of our products. USP (United States Pharmacopeia) is an independent organization that sets strict quality and purity standards, so you can be sure they meet the high specifications in product integrity.

For a complete list of Kirkland Signature products that are USP verified, visit
USP Logo


Support Your Overall Health

Kirkland Signature™ Organic Multivitamin is a complete formula with 19 vitamins and minerals. It is USDA Organic Certified and Non-GMO Project Verified. It is vegan, gluten-free, and has no synthetic vitamins or artificial colors, flavors or preservatives. Whole food sourced, plant based and organic – nutrition as nature intended.

  • USDA Certified Organic
  • Whole Food Sourced
  • No Synthetic Vitamins
  • Non-GMO


Make Every Day a Good Day – for Every Member of Your Family!

It’s easy to make every day a good day with Kirkland Signature™ multivitamins. With a full line designed to support overall health, you’re sure to find a multivitamin that’s right for you — and every member of your family.

Choose Daily Multi as part of your healthy routine or Mature Multi if you’re over age 50. Want to feel like a kid again? Opt for great-tasting Adult Multivitamin Gummies in tropical fruit, mixed berry and strawberry flavors. The real kids in your life are sure to go wild for tasty, animal-shaped Children’s Complete Multivitamin Gummies that support healthy growth and development.

Vitamin B

Give Your Body the Support It Needs

Stay one step ahead with Kirkland Signature™ B vitamins formulated to support cellular energy production and help support normal functioning of the nervous system. These vitamins will support your needs and have you ready to keep moving by helping convert food into cellular energy.

Super B-Complex with Electrolytes helps keep you nourished and ready to meet occasional daily living stress head-on. Looking for a quick and tasty way to support energy on the go? The delicious cherry taste and quick-dissolving B12 5000 mcg tablets are sure to deliver.

Vitamin C

Support Your Immune System

Help support your immune system with the Kirkland Signature™ Vitamin C option that fits your life.

Vitamin C 1000 mg provides immune system support in a high potency formula. Enjoy the crisp citrus taste of Chewable Vitamin C 500 mg or the deliciously fun Vitamin C Adult Gummies and help neutralize free radicals.

Vitamin D3

An Essential Vitamin

Kirkland Signature™ Vitamin D3 is a great way to ensure you’re getting enough of your body’s preferred form of this essential vitamin.* Vitamin D assists with calcium absorption, making it easier for your body to get the nutrients it needs to help keep your bones and teeth strong — and support your immune system.

*Vitamin D3 is more effective than vitamin D2 at raising and maintaining adequate levels of circulating vitamin D in the body.

Vitamin E

Antioxidant & Essential Nutrient

Kirkland Signature™ Vitamin E 180 mg provides antioxidant support, but that’s not all. It helps neutralize free radicals in the body, provides immune system support and serves as an essential nutrient for many cells including heart muscle cells.


Support Strong Bones & Teeth

Skipped your glass of milk today? Finish strong with Kirkland Signature™ Calcium 600 mg + vitamin D3, which aids in your body’s absorption of calcium and helps support strong bones and teeth.

For extra support, choose Calcium Citrate, Magnesium and Zinc with Vitamin D3. It’s designed to help bone formation. Adequate calcium and vitamin D throughout life, as part of a well-balanced diet, may reduce the risk of osteoporosis.

Looking to satisfy your sweet tooth? Try the refreshing orange and cherry Calcium Gummies — they taste so good you’ll (almost) forget they’re good for you.


Be as Active as Your Lifestyle Demands

Nourish your joints and support mobility with Kirkland Signature™ Glucosamine. Does your busy lifestyle require extra support? Choose Glucosamine 1500 mg and Chondroitin 1200 mg or Glucosamine HCI 1500 mg and MSM 1500 mg for a two-per-day formula that provides high-quality cartilage and joint support, and healthy connective tissue support.

Prefer to take just one tiny pill daily? Go with Triple Action Joint Health with UC-II®. Clinical studies show that UC-II® helps support joint comfort, flexibility, and mobility to help you stay active all day long.

Individual results may vary.
UC-II® is a registered trademark of InterHealth N.I.

Omega-3 Fatty Acids

Support your Healthy Heart

Get all the health and nutritional benefits of EPA and DHA omega-3 fatty acids with sustainably sourced Kirkland Signature™ omega fish oils. For balanced omega nutrition, choose cold pressed, extra virgin Wild Alaskan Fish Oil 1400 mg, or look for purified Fish Oil 1000 mg. To support heart health, also try Krill Oil 500 mg with superior absorption.††

††Superior Omega-3 fatty acids (EPA+DHA) absorption compared to an equal amount of regular triglyceride fish oil.

² Supportive but not conclusive research shows that consumption of EPA and DHA omega-3 fatty acids may reduce the risk of coronary heart disease. See supplement facts panel for omega-3 content.


Antioxidant & Heart Health Support

Kirkland Signature™ CoQ10 300 mg helps support heart health and neutralize free radicals in the body, while also aiding in cellular energy production — all in one daily softgel.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.