International Vitamin Corporation
Is International Vitamin Corporation third-party tested?
Yes — as of 2026-09-21, International Vitamin Corporation holds 94 third-party certifications across 1 independent testing program: NSF (dietary supplement certification). Every certification below links to the certifying body's official listing so you can verify it at the source.
Registries checked (as of 2026-09-21): Informed · NSF (Products are tested for label accuracy and the absence of contaminants.) · USP · Labdoor · BSCG
Certified categories: fish oil, iron, magnesium, melatonin, multivitamin, turmeric, vitamin b12, vitamin c, vitamin d, zinc
Last verified: 2026-09-21
SupplementSentry found certifications on 94 of International Vitamin Corporation's products in our index.
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Certification breakdown
- NSF (dietary supplement certification) — 94 products
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B-Complex with Vitamin C
vitamin c · Tablet -
B50 Complex HIGH POTENCY - TIMED RELEASE
— · Tablet -
Biotin & Keratin 10,000 mcg / 100mg
— · Tablet -
Biotin 5000 mcg
— · Tablets -
Black Cohosh 40 mg per serving
— · Tablets -
Brain Performance*
— · Capsule -
Calcium 600 mg with Vitamin D3 20 mcg
vitamin d · Tablet -
Calcium 600 mg with Vitamin D3 20 mcg (800 IU)
vitamin d · Tablet -
Calcium 600mg with Vitamin D3 20mcg and Minerals
vitamin d · Tablets -
Calcium Citrate + Vitamin D3 Petite
vitamin d · Tablet -
Calcium Citrate 600 mg
— · Tablet -
Calcium, Magnesium & Zinc with Vitamin D
magnesium · Caplet -
Chewable Magnesium - Cherry
magnesium · Tablet -
Chewable Papaya Enzyme Artificial Papaya Flavor
— · Tablet -
Children’s Chewable Complete MultiVitamin
multivitamin · Tablet -
Children’s Chewable Complete Multivitamin Animal Shapes
multivitamin · Tablet -
Children’s Chewable Melatonin 1 mg
melatonin · Tablet -
Chromium Picolinate 1000 mcg
— · Tablet -
Cinnamon 1000 mg Equivalent‡ Plus Chromium 200 mcg per capsule
— · Capsule -
Co Q-10 100 mg
— · Softgel -
Co Q-10 200 mg
— · Softgel -
Co Q-10 400 mg
— · Softgel -
Cranberry 500 mg with Vitamin C HERBAL
vitamin c · Softgel -
Eye Health Vitamin & Mineral with Omega
fish oil · Softgel -
Eye Health with Omega-3 Fatty Acids 250 mg
fish oil · Softgel -
Flaxseed Oil 1000 mg
— · Softgel -
Folate 680 mcg DFE (Folic Acid 400 mcg) Tablet
— · Tablet -
Folic Acid 400 mcg
— · Tablet -
Garlic 1,000 mg Equivalent* per softgel
— · Softgel -
Glucosamine HCl & MSM with Hyaluronic Acid
— · Tablet -
High Potency Ferrous Sulfate Elemental Iron 65 mg
iron · Tablet -
L-Lysine 1000 mg per serving
— · Tablet -
L-Theanine 100mg
— · Capsules -
Lutein 25 mg with Zeaxanthin Isomers 5 mg
— · Softgel -
Magnesium 250 mg
magnesium · Tablet -
Magnesium 250mg
magnesium · Tablet -
Magnesium 400 mg
magnesium · Tablet -
Maximum Strength Calcium Citrate 630 mg with 12.5 mcg (500 IU) Vitamin D3
vitamin d · Tablet -
Melatonin 3 mg
melatonin · Tablet -
Melatonin 5mg
melatonin · Tablet -
Melatonin Quick Dissolve Natural Cherry Flavor 5 mg
melatonin · Tablet -
Memory Support
— · Caplet -
Nature's Wonder Timed Release Vitamin B12 1,000 mcg
vitamin b12 · Tablets -
Nature's Wonder Triple Strength Glucosamine Chondroitin w/ MSM & Hyaluronic Acid
— · Caplet -
Nature's Wonder Triple Strength^ Glucosamine & Chondroitin Complex
— · Tablet -
Nature’s Wonder Super B Complex with Vitamin C
vitamin c · Tablet -
Omega-3 Fish Oil 1000 mg
fish oil · Softgel -
One Daily Men's MultiVitamin & MultiMineral
multivitamin · Tablets -
One Daily Men's Multivitamin
multivitamin · Tablet -
One Daily Men’s 50+ Formula Multivitamin/Multimineral
multivitamin · Tablet -
One Daily Women’s 50+ Formula Multivitamin/Multimineral
multivitamin · Tablet -
One Daily Women’s Formula MultiVitamin & MultiMineral
multivitamin · Tablet -
One Daily Women’s MultiVitamin
multivitamin · Tablet -
One Daily Women’s PreNatal MultiVitamin with Choline
multivitamin · Multipack -
Potassium 99mg
— · Caplet -
Pre/Post Natal MultiVitamin/MultiMineral for Pregnant or Nursing Women
multivitamin · Tablet -
Prenatal Vitamin Dietary Supplement
— · Tablet -
Prostate Health Complex with Beta-sitosterol
— · Caplet -
Quick Dissolve Melatonin 5mg
melatonin · Tablets -
Slow Release Iron 45 mg (from 144 mg dried ferrous sulfate)
iron · Tablet -
Spectrovite® Adult 50+
— · Tablets -
Spectrovite® Adults
— · Tablets -
Spectrovite® Men’s
— · Tablet -
Spectrovite® Men’s 50+
— · Tablets -
Spectrovite® Women's 50+
— · Tablet -
Spectrovite® Women’s 50+
— · Tablets -
Spectrovite® Women’s Multivitamin Tablet
multivitamin · Tablets -
Triple Strength Glucosamine & Chondroitin 1500mg/1200mg per serving
— · Tablet -
Triple Strength Glucosamine & Chondroitin Complex
— · Tablet -
Triple Strength Glucosamine & Chondroitin with MSM Plus Vitamin D3
vitamin d · Tablet -
Triple Strength^ Glucosamine HCL & Chondroitin Sulfate
— · Tablet -
Turmeric 500 mg HERBAL
turmeric · Capsules -
Verisol Collagen with Vitamin C 60 mg
vitamin c · Tablet -
Vision Shield® with Lutein & Zeaxanthin Eye Vitamin & Mineral Supplement
— · Softgel -
Vitamin B12 1000 mcg TIMED RELEASE
vitamin b12 · Tablet -
Vitamin B12 2000 mcg TIMED RELEASE
vitamin b12 · Tablet -
Vitamin B12 2500 mcg Rapid Release Quick Dissolve Natural Cherry Flavor
vitamin b12 · Tablet -
Vitamin B12 5000 mcg Rapid Release Quick Dissolve Natural Cherry Flavor
vitamin b12 · Tablet -
Vitamin B12 5000mcg Quick Dissolve - Cherry Flavor
vitamin b12 · Tablet -
Vitamin B12 500mcg tablets
vitamin b12 · Tablet -
Vitamin C 1000 mg with Rose Hips
vitamin c · Tablet -
Vitamin C 1000 mg with Rose Hips & Citrus Bioflavonoid Complex
vitamin c · Tablet -
Vitamin C 1000mg with Rose Hips
vitamin c · Tablet -
Vitamin C 500 mg with Natural Rose Hips
vitamin c · Tablet -
Vitamin C 500 mg with Rose Hips
vitamin c · Tablet -
Vitamin C Chewable 500 mg Natural & Artificial Tropical Fruit Flavors
vitamin c · Tablet -
Vitamin C Chewable 500 mg Natural Orange Flavor
vitamin c · Tablet -
Vitamin D3 125 mcg (5000 IU) MAXIMUM STRENGTH
vitamin d · Softgel -
Vitamin D3 125 mcg (5000 IU) Quick Dissolve NATURAL STRAWBERRY FLAVOR
vitamin d · Tablet -
Vitamin D3 25 mcg (1000 IU) HIGH POTENCY
vitamin d · Softgel -
Vitamin D3 50 mcg (2000IU) SUPER STRENGTH
vitamin d · Softgel -
Vitamin E 180mg
— · Softgel -
Zinc 50 mg
zinc · Caplet -
Zinc 50mg with Vitamin D3 50mcg (2,000 IU)
vitamin d · Capsule