Known Nutrition Biotin for Hair vs Shivay Herbals Marine Collagen
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Known Nutrition Biotin for Hair and Shivay Herbals Marine Collagen.
Last verified: 13 Mar 2026 · Based on 25 reviews
Our Verdict: Known Nutrition Biotin for Hair or Shivay Herbals Marine Collagen?
Known Nutrition's Biotin Gummies win for hair growth, scoring 75/100 compared to Shivay Herbals' 70/100, with user-verified thicker, faster hair and a 10,000µg biotin dose. Pick Shivay Herbals instead if budget matters — at £9.99 versus £10.39, it delivers a 91.0 value score and broader anti-ageing benefits with collagen and hyaluronic acid.
— AIScored Editorial Team
Known Nutrition Biotin for Hair scores 75/100 vs Shivay Herbals Marine Collagen at 70.0/100. Known Nutrition Biotin for Hair wins on effectiveness, certifications. Shivay Herbals Marine Collagen is stronger on ingredient quality and value for money.
Known Nutrition Biotin for Hair vs Shivay Herbals Marine Collagen: What Does the Data Say?
Biotin Vegan Gummies for Hair edges out Marine Collagen Complex with Vitamin C, Hyaluronic Acid, Biotin by a score of 75/100 to 70/100. The gummies pack 10,000µg D-Biotin per serving in a chewable format that skips capsules entirely. Marine Collagen Complex with Vitamin C, Hyaluronic Acid, Biotin uses hydrolysed Type I marine collagen at 1,000mg daily plus Vitamin C, Hyaluronic Acid and Biotin but delivers everything in large capsules. That lower collagen amount sits well below the 2.5 to 10g range seen in studies while the gummies deliver a high biotin dose straight away.
People dealing with hair thinning or increased shedding should pick Biotin Vegan Gummies for Hair because it scores 71/100 on effectiveness and users report visibly thicker faster-growing hair. Those on a tight budget who want an affordable daily habit and notice early fine lines or brittle nails will do better with Marine Collagen Complex with Vitamin C, Hyaluronic Acid, Biotin thanks to its 91/100 value score and £9.99 price for a 60-day supply. The gummies cost £10.39 and score only 65/100 on value yet win on overall results.
Practical points matter too. The gummies taste sweet from glucose syrup and sucrose as the top ingredients which adds a notable sugar load each day. Marine Collagen Complex with Vitamin C, Hyaluronic Acid, Biotin has no reported taste or aftertaste which helps daily use. Some reviewers find the capsules quite large and tricky to swallow. High-dose biotin from the gummies can affect certain lab tests so tell your doctor before bloodwork.
How Do the Scores Compare?
Biotin Vegan Gummies for Hair
Known Nutrition
|
Marine Collagen Complex wit...
Shivay Herbals
|
|
|---|---|---|
| Overall Score | 75 | 70.0 |
| Effectiveness |
71.0/100
Best
|
65.0/100 |
| Ingredient Quality | 64.0/100 |
70.0/100
Best
|
| Value for Money | 65.0/100 |
91.0/100
Best
|
| Side Effects | 81.0/100 |
93.0/100
Best
|
| Certifications |
100/100
Best
|
38.0/100 |
| Best Price | £10.39 Known Nutrition → |
£9.99
Amazon UK →
Cheapest
|
| Form | gummies | Capsule |
| Dose | None | None |
| Third-Party Tested | ✓ Yes | ✗ No |
| Reviews Analysed | 13 | 12 |
Biotin Vegan Gummies for Hair
Pros
- ✓Strong user-reported outcomes: multiple reviewers independently note visibly thicker, faster-growing hair
- ✓10,000µg D-Biotin per serving — high-dose, bioavailable active form
- ✓BRC, GMP, and ISO certified with independent third-party testing — above average for UK gummy market
- ✓Vegan, free from artificial colours/flavours, preservatives, and GMO ingredients
Cons
- ✗Glucose syrup and sucrose are the first two listed ingredients — notable sugar load per daily serving
- ✗High-dose biotin (≥5,000µg) can interfere with immunoassay lab tests (thyroid, troponin) — users should inform clinicians before bloodwork
- ✗Limited clinical evidence for effect in biotin-sufficient individuals; one reviewer reports no results after two months
- ✗Gummy format typically carries a higher cost-per-dose than equivalent capsule supplements
Best For
Marine Collagen Complex with Vit...
Pros
- ✓Exceptional value — approximately £9.99 for a 60-day supply works out to around £5 per month, significantly cheaper than collagen liquids and powders
- ✓No taste or aftertaste reported across all reviewers, making daily compliance straightforward for those sensitive to collagen flavour or odour
- ✓Well-rounded formula: hydrolysed Type I marine collagen combined with Vitamin C (EFSA-approved collagen-formation claim), Hyaluronic Acid, and Biotin
- ✓Made in the UK under GMP standards, free from GMOs and artificial colours — reassurance of basic quality control
Cons
- ✗1,000mg daily dose is at the low end of the therapeutic range — clinical research on skin and joint outcomes typically uses 2.5–10g per day; powder alternatives commonly deliver 5–10g per serving
- ✗Capsules described as notably large by multiple reviewers — may be a challenge for those with swallowing difficulties
- ✗No independent third-party testing (e.g. Informed Sport, NSF, Labdoor) — quality assurance relies solely on the manufacturer's own GMP declaration
- ✗Not suitable for vegetarians, vegans, or those with fish allergies — contains fish-derived collagen
Best For
Score Breakdown: Known Nutrition Biotin for Hair vs Shivay Herbals Marine Collagen
Known Nutrition's Biotin Vegan Gummies deliver 10,000µg of D-Biotin per day in a watermelon-flavoured gummy format made in the UK.
What are the key differences?
Frequently Asked Questions
Which is better, Known Nutrition Biotin for Hair or Shivay Herbals Marine Collagen? ▼
Is Known Nutrition Biotin for Hair worth the price compared to Shivay Herbals Marine Collagen? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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