Overview
We keep ONYX NUTRA Biotin 12,000μg Hair Skin and Nails Vitamins on our biotin, hair & nails shelf alongside 47 others, and rank it on rating, review volume and live price rather than on the brand. The manufacturer puts it this way: STRENGTH BIOTIN 12,000μg (24,000% NRV) FOR HAIR, SKIN & NAILS – Biotin contributes to the maintenance of normal hair and normal skin. Whether you're concerned about thinning hair, brittle nails, dull skin, or simply want to support your natural beauty from within, this 3-in-1 formula is designed for you. That is the maker talking, not us, so read it as a claim rather than a finding. Buyers have it at 4.5 out of 5 from 42 ratings. We work out below what that is worth against everything else on the shelf.
At a glance - Brand
- ONYX NUTRA
- Amazon rating
- 4.5 out of 5, from 42 ratings
- Against the shelf
- 0.1 above the biotin, hair & nails median of 4.4
- Our placing
- 20 of 48, weighted for how many people rated it
- Where the price sits
- Cheaper end of a shelf running £3.99 to £29.99
- How settled
- Comparatively few ratings, so treat the score as provisional
- In the pack
- 180 tablets, so the per-unit cost is shown with the price
Read from the label- Strength per serving
- 12,000 mcg
- Against the label reference
- 240x the 50 mcg reference intake
- Tablets in the pack
- 180
- Cost per tablet
- 4.4p
Taken from the wording on the listing itself and the price we track, not from a brand claim about value.
How we rank →
How it compares on the biotin, hair & nails shelf
The typical biotin, hair & nails product on our shelf scores 4.4 out of 5, measured across 48 rated products. This one comes in at 4.5. That's mid-table. Star ratings won't separate this from its neighbours, so the decision comes down to pack size, price per unit and whether the specifics below suit you.
Behind that score sit 42 ratings, against a shelf median of 638. For this shelf that's thin. A handful of new reviews could shift it noticeably, so read the score as an early signal rather than a verdict.
The shelf runs from £3.99 to £29.99 and the midpoint is about £9.99. On price, this one is in the bottom third. Cheap with a middling rating is a fair trade if the specifics suit you, and it is the usual reason to pick something at this end of the shelf.
Worked out from the 48 biotin, hair & nails products we track, not from the brand's own claims.
How we rank →
Key features, as the manufacturer lists them
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
- 💎 HIGH-STRENGTH BIOTIN 12,000μg (24,000% NRV) FOR HAIR, SKIN & NAILS – Biotin contributes to the maintenance of normal hair and normal skin. Our ultra-high-strength formula delivers 12,000μg of Biotin per daily serving. Enhanced with Zinc (10mg, 100% NRV) which contributes to the maintenance of normal nails, and Selenium (55μg, 100% NRV) which contributes to the maintenance of normal hair and nails. Three complementary nutrients in a single daily serving.
- ✨ ADVANCED BEAUTY COMPLEX FOR WOMEN & MEN – Whether you're concerned about thinning hair, brittle nails, dull skin, or simply want to support your natural beauty from within, this 3-in-1 formula is designed for you. Suitable for women and men experiencing hair shedding, postpartum hair changes, age-related thinning, or seasonal hair loss. A convenient tablet alternative to biotin gummies, sprays, shampoos, and topical treatments.
- 💊 ZINC & SELENIUM – CONTRIBUTES TO PROTECTION OF CELLS FROM OXIDATIVE STRESS – Both Zinc and Selenium contribute to the protection of cells from oxidative stress. Oxidative stress is associated with premature ageing of skin, hair, and nails. Selenium also contributes to normal thyroid function, which plays a role in hair health. Unlike single-ingredient biotin supplements, this formula delivers a trio of nutrients for comprehensive beauty and wellness support.
- 🌱 180 VEGAN TABLETS – 60-DAY SUPPLY – UK MADE TO GMP STANDARDS – Take 3 small (6mm) easy-to-swallow tablets daily with a meal. No aftertaste, no capsules to crack open, no powder to mix. Fully vegan, gluten-free, and free from artificial colours, flavours, sweeteners, and preservatives. Manufactured in the UK under strict GMP conditions. Letterbox-friendly flat packaging for hassle-free delivery and storage.
- 🌍 ONYX NUTRA BIOTIN – CLEAN FORMULA WITH ZINC & SELENIUM – Delivering 12,000μg Biotin per serving alongside Zinc and Selenium, where many supplements provide biotin alone. Suitable alongside other supplements including collagen, multivitamins, and hair oils. Ideal for anyone seeking a clean, science-backed hair vitamin without unnecessary additives. Suitable for both women and men as part of a balanced diet and healthy lifestyle.
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