NutraHarmony's Biotin, Collagen & Keratin capsules, rated by more than 18,000 Amazon customers, are now certified to NSF/ANSI 173 after independent testing of what is actually in the bottle
CASPER, WY, October 19, 2026 (EZ Newswire) -- NutraHarmony, a U.S. dietary supplement brand founded in 2021, today announced that its best-selling Biotin, Collagen & Keratin capsules have earned NSF certification under NSF/ANSI 173. The product now appears in NSF's public listings of certified products, where any shopper can check its status.The certification means an independent organization, not the brand itself, has confirmed that the product contains what its label says and has screened it for contaminants and undeclared ingredients. The capsules carry more than 18,000 customer ratings on Amazon, with an average of 4.5 out of 5 stars.
Why independent verification matters
Under federal law, dietary supplements are not reviewed or approved by the U.S. Food and Drug Administration before they go on sale. "Under DSHEA, FDA does not have the authority to approve dietary supplements before they are marketed," the agency states. Making sure a product matches its label is the responsibility of the company that sells it.
That gap is not theoretical. A 2022 study published in JAMA Network Open tested 30 immune-support supplements purchased online and found that only 13 had labels that accurately reflected their contents. Nine contained ingredients that were not declared on the label at all.
"For most shoppers, the label is the only information they have about a supplement, and they have no way to check it themselves," NutraHarmony said in a statement. "We wanted our customers to be able to rely on an independent organization for that answer, not just on our word."
What NSF certification covers
NSF tests certified supplements in its own accredited laboratories rather than relying only on manufacturer data. Certification under NSF/ANSI 173 includes:
- Label claim verification: confirming the product contains the ingredients listed on the label
- Contaminant review: screening for undeclared ingredients and unsafe levels of contaminants
- Toxicology review: an assessment of the formula's intentionally added ingredients
- Ongoing oversight: NSF conducts annual audits and periodically retests each certified product
NSF certification verifies what is in a product. It is not an evaluation of a product's effectiveness.
"Biotin, Collagen & Keratin is the product our customers buy most, so it was the natural place to start," the company said. "Certification is not a one-time test: NSF keeps auditing and retesting the product, and anyone can look it up in NSF's public listings."
Availability
NutraHarmony Biotin, Collagen & Keratin capsules are available on Amazon. Answers to common questions about NutraHarmony products are available on the company's FAQ page.
About NutraHarmony
NutraHarmony is a U.S. dietary supplement brand founded in 2021. Its portfolio of more than 60 products spans hair, skin and nails, joint, heart and circulation, lung, sleep and relaxation, and hydration support, in capsule, liquid and gummy formats, along with hair-care products including serums, masks and oils. NutraHarmony’s Biotin, Collagen & Keratin capsules are certified by NSF under NSF/ANSI 173, the standard for dietary supplements. NutraHarmony products are available on Amazon, TikTok Shop and at nutraharmony.com.
Disclaimer
Statements made in this press release regarding NutraHarmony's dietary supplements have not been evaluated by the Food and Drug Administration (FDA). These products are not intended to diagnose, treat, cure, or prevent any disease. NSF/ANSI 173 certification confirms label accuracy, manufacturing quality control, and contaminant screening; it does not constitute an endorsement, therapeutic evaluation, or safety approval by NSF or the FDA. Dietary supplements can interact with medications or interfere with lab tests. Individuals should consult a licensed physician or qualified healthcare professional before starting any supplement regimen.
Media Contact
Maria Miller
PR Manager
cooperation@nutra-harmony.com
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