Where to Buy
Brands with third-party certification, published lab reports, or standardized ingredients, for 31 popular supplements.
Ashwagandha
An adaptogenic herb used in Ayurvedic tradition that supports a healthy response to everyday stress.* Check the label for the extract type and the withanolide percentage. Read our ashwagandha guide
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
B-Complex
The full family of B vitamins, which support normal energy metabolism.* Look for active forms like methylcobalamin and methylfolate. Read our b-complex guide
Kirkland Signature
Kirkland Signature Super B-Complex with Electrolytes Tablets
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Beet root
A natural source of dietary nitrates that supports healthy blood flow and exercise performance.* Read our beet root guide
Garden of Life
Garden of Life Beets Detox
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Biotin
A B vitamin that supports healthy hair, skin, and nails.* High doses can interfere with some lab tests, so tell your doctor if you take it. Read our biotin guide
Nature Made
Nature Made Maximum Strength Biotin 5000 Mcg Softgels
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Calcium
An essential mineral that supports strong bones and teeth.* Check whether it's carbonate (take it with food) or citrate (take it any time). Read our calcium guide
Nature Made
Nature Made Calcium 600 mg with Vitamin D3 Tablets
Kirkland Signature
Kirkland Signature Calcium 600 mg with Vitamin D3 Tablets
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
CoQ10
A compound your cells use to make energy, which supports heart health.* Ubiquinol is the active form. Read our coq10 guide
Kirkland Signature
Kirkland Signature CoQ10 300 mg Softgels
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Collagen
Protein peptides that support healthy skin, hair, nails, and joints.* Check the label for the source (bovine or marine) and the collagen type. Read our collagen guide
Garden of Life
Grass Fed Collagen Peptides
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Creatine
One of the most-researched sports supplements, which supports strength and power during training.* Creatine monohydrate is the standard form. Read our creatine guide
Sports Research
Creapure ® Creatine Monohydrate Unflavored
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Elderberry
A traditional berry extract that supports normal immune function.* Read our elderberry guide
OLLY
ACTIVE IMMUNITY + ELDERBERRY BERRY BRAVE
Emergen-C
Emergen-C Immune + Triple Action Elderberry
Amazon Elements
Amazon Elements Elderberry Immune Gummies
up&up (Target)
up&up™ Adult Elderberry Gummies
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Electrolytes / hydration
Sodium, potassium, and magnesium that support hydration during exercise and heat.* Check the sugar content. Read our electrolytes / hydration guide
Liquid I.V.
Liquid IV Hydration Multiplier Sugar Free Raspberry Lemonade
GHOST
GHOST Hydration Powder Kiwi Strawberry
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Fiber (psyllium & other)
Supports regularity and digestive health.* Drink plenty of water with it. Read our fiber (psyllium & other) guide
Benefiber
Benefiber Prebiotic Fiber Supplement Fiber Gummies
Garden of Life
Dr. Formulated Organic Fiber
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Fish oil / Omega-3
EPA and DHA support heart, brain, and joint health.* Compare the EPA per serving on the back of the label, not the total milligrams on the front. Read our fish oil / omega-3 guide
Kirkland Signature
Kirkland Signature Wild Alaskan Fish Oil 1400 mg Softgels
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Glucosamine / joint
Supports joint comfort and cartilage health.* Glucosamine is often made from shellfish, so check the source if you have an allergy. Read our glucosamine / joint guide
Nature Made
Nature Made Glucosamine Chondroitin Complex with MSM Triple Strength + Vitamin D3
Kirkland Signature
Kirkland Signature Glucosamine & Chondroitin Tablets
Member's Mark
Member's Mark Triple Strength Glucosamine 1500 mg & Chondroitin 1200mg Tablets
Move Free (Schiff)
Schiff Move Free Advanced Joint Supplement Tablets
Thorne
Thorne® Glucosamine & Chondroitin
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Green tea
An extract with EGCG and other antioxidants.* Concentrated extracts are best taken with food. Read our green tea guide
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Iron
An essential mineral that supports healthy red blood cell production.* Take it only if you need it, and keep it away from children. Read our iron guide
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
L-theanine
An amino acid from tea leaves that supports calm, focused relaxation without drowsiness.* Read our l-theanine guide
up&up (Target)
up&up™ L-Theanine
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Magnesium
An essential mineral that supports muscle function, relaxation, and sleep quality.* The form matters: glycinate and threonate are gentle, and oxide is cheaper but absorbs less well. Check for added B6. Read our magnesium guide
Double Wood
Magnesium Glycinate 400 mg
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Melatonin
Supports falling asleep and adjusting to jet lag.* Lower doses are often enough, so start small. Read our melatonin guide
Nature Made
Nature Made Zero Sugar Melatonin Extra Strength 5 Mg Gummies
SmartyPants
Kids Sleep Melatonin 0.5 mg
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Multivitamin
A daily foundation of essential vitamins and minerals that helps fill nutritional gaps.* Read our multivitamin guide
Centrum
Centrum Adult 50+ Multigummies
SmartyPants
Adult Formula Multi and Omegas
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
NAC
N-acetyl cysteine, an amino acid that supports your body's production of glutathione, a key antioxidant.* Read our nac guide
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Nattokinase
An enzyme from fermented soybeans that supports healthy circulation.* No nattokinase brand is currently certified by NSF, USP, or Informed Choice, so we list brands that either publish batch lab reports or use NSK-SD, a branded, standardized nattokinase ingredient. Check the label for activity in FU. Read our nattokinase guide
Natural Foundation Supplements (NF Supplements)
NF Nattokinase 5,000 FU (30 capsules)
Allergy Research Group
Nattokinase NSK-SD 100 mg (2000 FU)
Source Naturals
Nattokinase, NSK-SD (100 mg, 2,000 FU)
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Prebiotic
Fiber that feeds the beneficial bacteria in your gut and supports digestive health.* Read our prebiotic guide
Benefiber
Benefiber Prebiotic Fiber Supplement Fiber Gummies
SmartyPants
Kids Digestive Probiotic & Prebiotic 6 Billion CFU, Grape
up&up (Target)
up&up™ Sugar Free Wheat Dextrin Powder Prebiotic Fiber Supplement
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Prenatal multivitamin
Vitamins and minerals, including folate, that support nutritional needs before and during pregnancy.* Choose one with your healthcare provider. Read our prenatal multivitamin guide
SmartyPants
Prenatal Multivitamin & Choline, Folate, DHA
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Probiotic
Beneficial bacteria that support digestive and gut health.* Check the strains and the CFU count guaranteed through the expiration date, not just at manufacture. Read our probiotic guide
Culturelle
Culturelle Digestive Daily Probiotic Vegetarian Capsules
Garden of Life
Dr. Formulated 10 Billion Probiotic Gummy
trunature
trunature Women’s Daily Probiotic Capsules
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Protein powder
A convenient way to get more protein for muscle recovery and daily intake.* Third-party testing matters especially here because of heavy-metal concerns. Read our protein powder guide
Optimum Nutrition
Gold Standard 100% Whey Vanilla Ice Cream
Transparent Labs
Grass-Fed Whey Protein Isolate - Cake Batter
Momentous
Essential Grass Fed-Whey Protein Unflavored
Legion
Legion® Whey+ Grass-Fed Whey Isolate Dutch Chocolate
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Turmeric / Curcumin
A traditional spice extract that supports joint comfort and a healthy inflammatory response.* Look for black pepper (piperine) or an enhanced-absorption form. Check with your doctor if you take blood thinners. Read our turmeric / curcumin guide
Nature Made
Nature Made Turmeric Curcumin High Absorption 250 mg Capsules
Youtheory
youtheory Turmeric Extra Strength Formula 1000 mg Capsules
Kirkland Signature
Kirkland Signature Turmeric 1000 mg with Black Pepper Capsules
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Vitamin B12
Supports energy and nervous system health.* Often needed by people who eat a plant-based diet and by older adults. Read our vitamin b12 guide
Nature's Bounty
Nature's Bounty Vitamin B-12 2500 mcg Quick Dissolve Tablets
Kirkland Signature
Kirkland Signature Quick Dissolve B-12 5000 mcg Tablets
21st Century
21st Century Prolonged Release B-12 1000 mcg
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Vitamin C
An antioxidant that supports normal immune function and collagen formation.* Read our vitamin c guide
Kirkland Signature
Kirkland Signature Vitamin C 1000 mg with Rose Hips and Citrus Bioflavonoid Complex Tablets
BUBS Naturals
BUBS Boost Vitamin C with Citrus Bioflavonoids
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Vitamin D
Supports bone health and immune function.* D3 is the most common form, and it's often paired with K2. Read our vitamin d guide
Kirkland Signature
Kirkland Signature Extra Strength D3 50 mcg Softgels
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Vitamin K / K2
Supports bone health and directs calcium where it belongs.* Talk to your doctor first if you take warfarin. Read our vitamin k / k2 guide
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.
Zinc
An essential mineral that supports immune function and healthy skin.* Long-term high doses can lower copper levels. Read our zinc guide
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.