biotin and collagen supplements
Skip itSoft demand (-27.7% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great11.6%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Price range
Okay£5.66–£20.21cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£10.15avg listing price — sweet spot $15–$100
Market size
Okay£138K£138K/yr · 117K searches
Review moat
Bad4,627.5avg incumbent reviews — the moat a new listing must climb
Competition
Bad78%top-5 click share — a locked-up shelf
Growth
Bad-27.7%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, biotin and collagen supplements is a £138K/yr Amazon United Kingdom market (117K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 43/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
biotin and collagen supplements market data
- Units sold / yr
- 8K–10K
- avg 750–1,000/product
- Revenue / yr
- £81K–£102K
- units × avg price
- Conversion rate
- 11.6%
- Avg BSR
- #66
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 42 months
- Avg seller age
- 172 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
12 rising
Sellers
21
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
17%
- Nutrition Geeks41%
- NEW LEAF PRODUCTS14%
- Horbäach8%
- WeightWorld8%
- G R O U N D E D COFFEE SCRUB6%
- EVO NUTRITION5%
- Open — no brand owns it (6 brands, 17%)
Demand
Weekly Amazon search volume, last 45 weeks — -27.7% search growth over the last 90 days.Top biotin and collagen supplements search terms
- biotin and collagen supplements72K/yr
- collagen and biotin21K/yr
- collagen and biotin supplements for women9K/yr
- collagen biotin6K/yr
- biotin collagen4K/yr
- biotin and collagen4K/yr
- dcxc biotin and collagen2K/yr
Top biotin and collagen supplements products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Biotin Hair Growth Supplement - 180 Vegan Tablets Enhanced with Zinc & Selenium Hair Vitamins Complex - Biotin 10000 mcg - Hair Skin and Nails Vitamins for Women & Men UK (Packaging Design May Vary)
Nutrition Geeks£5.664.4★12,621 rev
Biotin Hair Growth Vitamins 12 000mcg D-Biotin Tablets Enriched with Zinc & Selenium Vegan Beauty Hair Skin & Nails Vitamins for Women and Men High Strength - 3 Months Supply UK Made - New Leaf
NEW LEAF PRODUCTS£7.134.5★3,465 rev
Marine Collagen Capsules with Hyaluronic Acid Biotin & Vitamin C | Type 1 Collagen Peptides | 100% Marine | Supplement for Men & Women | 90 Count | by Horbaach
Horbäach£7.244.4★115 rev
Biotin Tablets - 365 Vegan Tablets - 1 Year Supply - 1 Tablet per Day
WeightWorld£8.094.5★8,488 rev
Hair Growth Biotin Complex 10 000mcg with Marine Collagen Selenium Keratin & Zinc | x90 Tablets | Hair Growth Thickness Strength & Volume | Men & Women Hair Support Supplement
G R O U N D E D COFFEE SCRUB£8.334.2★940 rev
Newest
by launch date
Green Bears Biotin Collagen Keratin Gummies 14-in-1 Hair Skin & Nails Vitamin Complex High Strength Biotin 5000mcg Collagen Keratin 60 Gummies
GreenBears£16.7531 rev
Marine Collagen Capsules with Hyaluronic Acid Biotin & Vitamin C | Type 1 Collagen Peptides | 100% Marine | Supplement for Men & Women | 90 Count | by Horbaach
Horbäach£7.24115 rev
Biotin Max with Zinc & Selenium | High Strength Vitamins & Minerals to Support Hair Skin & Nail Health | Vegan Food Supplement Complex | 400 Tablets for a 13 Month Supply | UK Made by EVO Nutrition
EVO NUTRITION£7.61313 rev
Incite Nutrition Biotin Hair Growth Support Supplement 12 000mcg - 400 Tiny 6mm Tablets (Full Year Plus Supply) - for Men & Women
Incite Nutrition£7.436,002 rev
Complete Hair & Skin Support Formula: Biotin High Strength with Marine Collagen Hyaluronic Acid 35 Ingredients Advanced Vitamins & Minerals for Nails & Bones 90 Capsules UK Made GMP Certified
Dietapplements£20.21600 rev
Trending
90-day click momentumGreen Bears Biotin Collagen Keratin Gummies 14-in-1 Hair Skin & Nails Vitamin Complex High Strength Biotin 5000mcg Collagen Keratin 60 Gummies
GreenBears£16.754.7★
Solgar Biotin 5000 mcg Vegetable Capsules - High Strength Formula - Supports Hair Growth Glowing Skin Energy & Vitality - Health Supplement - Sugar Free - Suitable for Vegans - Pack of 50
Solgar£10.434.6★
Biotin Hair Growth Vitamins 12 000mcg D-Biotin Tablets Enriched with Zinc & Selenium Vegan Beauty Hair Skin & Nails Vitamins for Women and Men High Strength - 3 Months Supply UK Made - New Leaf
NEW LEAF PRODUCTS£7.134.5★
Biotin Max with Zinc & Selenium | High Strength Vitamins & Minerals to Support Hair Skin & Nail Health | Vegan Food Supplement Complex | 400 Tablets for a 13 Month Supply | UK Made by EVO Nutrition
EVO NUTRITION£7.614.7★
Marine Collagen Capsules with Hyaluronic Acid Biotin & Vitamin C | Type 1 Collagen Peptides | 100% Marine | Supplement for Men & Women | 90 Count | by Horbaach
Horbäach£7.244.4★
What buyers say about biotin and collagen supplements
What buyers praise and complain about, mined from review topics.What buyers love
“Hair growth improvement”
“Great product, delivers on results”
“Good value for money”
“They are very small to swallow which is great”
“A good selection of vitamins”
“easy to use”
“As described and great value for money”
“no weird aftertaste”
“It works it's really good it's helped me a lot”
“Helped with my hair thinning in menopause”
What buyers complain about
“Not very effective”
“EXTREMELY HIGH DOSAGE”
“.after taking it for 2 days my lower legs were swelling up and became very itchy and red”
“personally I found them too big”
“Just a shame they didn't work for hair or nail health”
“Although I didn't see a change in hair growth”
“Hair has come a bit thicker”
“I am always a little unsure about rating the effectiveness of vitamins”
“Price wise this breaks down to just under 67p a day based on the current full list price of £16.99”
“I couldn't quite work out why my appetite had increased then I researched ingredients listed”
Common questions
- Is biotin and collagen supplements profitable to sell on Amazon United Kingdom?
- The niche generates £138K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -27.7%. Flapen's verdict: Skip it (43/100).
- How competitive is the biotin and collagen supplements niche?
- 12 brands and 21 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in biotin and collagen supplements?
- Top complaints mined from reviews: Functionality-Overall, Dosage, Allergies. The return rate is 0.0%.
- What does it cost to enter the biotin and collagen supplements niche?
- Listings span £5.66–£20.21; the average listing price is £10.15 (sweet spot $15–$100). The average incumbent carries 4,628 reviews — the moat a new listing must climb.