Irwin Naturals
Is Irwin Naturals third-party tested?
Yes — as of 2026-09-21, Irwin Naturals holds 26 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: collagen, melatonin, turmeric, zinc
Last verified: 2026-09-21
SupplementSentry found certifications on 26 of Irwin Naturals's products in our index.
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Certification breakdown
- NSF (dietary supplement certification) — 26 products
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2-IN-1 Kidney & Liver Super Cleanse
— · Softgel -
Brain Awake
— · Softgel -
CLA Lean Body Fat Reduction
— · Softgel -
CoQ10-RED
— · Softgel -
Collagen Beauty
collagen · Softgel -
Deep Tissue Collagen-Pure
collagen · Softgel -
Double Potency 5-HTP Extra
— · Softgel -
Extra Strength Colon Flush
— · Softgel -
Global Wellness Immuno-Shield with Sambucus Elderberry
— · Softgel -
Green Tea Fat Burner Walmart
— · Softgel -
Healthy-Flow Saw Palmetto
— · Softgel -
Immuno-Shield All Season Wellness
— · Softgel -
Liquid Collagen Skin Revitalization
collagen · Liquid -
Liver Detox & Blood Refresh 60ct
— · Softgel -
Milk Thistle Liver Detox
— · Softgel -
Nitric Oxide Pre•Sport
— · Softgel -
Power to Sleep PM 6mg Melatonin
melatonin · Softgel -
Prosta-Strong RED
— · Softgel -
Pure Defense Mushroom 8 Immune Support
— · Softgel -
Rhodiola-Plus
— · Softgel -
Sleep Calm Relax Good Mood Sleep PM
— · Softgel -
Stored-Fat Belly Burner
— · Softgel -
Stress-Defy
— · Softgel -
Sunny Mood with Rhodiola
— · Softgel -
Urgent Rescue Mega Vita-C with Rosehips and Zinc
zinc · Softgel -
Whole-Body Turmeric Extra
turmeric · Softgel