glucosamine sulphate
Skip itSoft demand (-3.4% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible17.5%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,714.45avg incumbent reviews — the moat a new listing must climb
Avg price
Okay£11.02avg listing price — sweet spot $15–$100
Competition
Okay63%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Okay£125K£125K/yr · 65K searches
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Price range
Okay£6.73–£18.19cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-3.4%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, glucosamine sulphate is a £125K/yr Amazon United Kingdom market (65K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 45/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
glucosamine sulphate market data
- Units sold / yr
- 10K–13K
- avg 250–500/product
- Revenue / yr
- £110K–£138K
- units × avg price
- Conversion rate
- 17.5%
- Avg BSR
- #51
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 82%
- Out of stock
- 19.5%
- Avg brand age
- 65 months
- Avg seller age
- 176 days
Competition & brand share
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.Brands
12 rising
Sellers
30
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
63%
Top 20: 98%
Open market
8%
- Zipvit39%
- Simply Supplements34%
- Nu U Nutrition7%
- Natures Aid4%
- Carlyle4%
- NEW LEAF PRODUCTS3%
- Open — no brand owns it (6 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 101 weeks — -3.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top glucosamine sulphate search terms
- glucosamine sulphate47K/yr
- glucosamine sulphate 1500mg9K/yr
- glucosamine 1500mg5K/yr
- glucosamine sulphate 1000mg4K/yr
Top glucosamine sulphate 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 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Zipvit Glucosamine Sulphate 2KCl 1500mg with Vitamin C High Strength Joint Supplement Supports Cartilage Joints and Bones Shellfish Free 120 Vegan Tablets 4 Month Supply
Zipvit£8.114.6★2,985 rev
Glucosamine Sulphate 2KCL 1500mg | Supports Active Lifestyles | Marine Sourced | 180 Tablets = 6 Months Supply | Manufactured in The UK in Accordance with GMP Standards
Simply Supplements£10.184.4★31 rev
Zipvit High Strength Glucosamine Sulphate 2KCl 1500mg with Vitamin C 12 Month Supply Supports Bones and Cartilage Function 360 Vegan Tablets Joint Care Supplement for Men & Women
Zipvit£16.984.6★2,985 rev
Glucosamine Sulphate 2KCl 1000mg | 180 Fast Release Tablets
Simply Supplements£7.824.6★216 rev
Glucosamine Sulphate 2KCl 1500mg - 365 Tablets - 1 Year Supply - High Strength Glucosamine Tablets - Joint Supplements for Men & Women - Made in the UK - Nu U Nutrition
Nu U Nutrition£18.194.5★2,654 rev
Newest
by launch dateGlucosamine Sulphate 2KCl 1000mg | 180 Fast Release Tablets
Simply Supplements£7.82216 rev
Max Strength Glucosamine Sulphate 2KCl | Supports Active Lifestyles | 1858mg per Serving | Marine Sourced | 180 Tablets = 3 Months Supply | Manufactured in The UK in Accordance with GMP Standards
Simply Supplements£9.771,136 rev
Glucosamine Sulphate 1000mg with Vitamin C | Premium-Grade Glucosamine | 180+180 (360) Tablets | Manufactured in The UK
Simply Supplements£13.9012 rev
Glucosamine Sulphate 2KCl 1000mg | 360 Fast Release Tablets
Simply Supplements£12.85216 rev
Glucosamine and Chondroitin High Strength 7-in-1 with MSM Collagen Vitamin C Citrus & Ginger Joint Care Supplements for Men & Women - 180 Tablets
NEW LEAF PRODUCTS£8.03686 rev
Trending
90-day click momentum
Glucosamine Sulphate 1500mg | Supports Natural Glucosamine Levels | High-Strength 2KCl Formula | One-a-Day Convenience | 120 Capsules = 4 Months Supply | GMP-Certified & UK-Made
Simply Supplements£14.654.8★
Glucosamine Sulphate 2KCL 1500mg | Supports Active Lifestyles | Marine Sourced | 180 Tablets = 6 Months Supply | Manufactured in The UK in Accordance with GMP Standards
Simply Supplements£10.184.4★
Glucosamine and Chondroitin High Strength - Enriched With Turmeric And Vitamin C - Glucosamine Sulphate Chondroitin Sulphate Food Supplement - Contributes To The Normal Function of Bones 120 Capsules
NEW LEAF PRODUCTS£7.984.6★
Max Strength Glucosamine Sulphate 2KCl | Supports Active Lifestyles | 1858mg per Serving | Marine Sourced | 180 Tablets = 3 Months Supply | Manufactured in The UK in Accordance with GMP Standards
Simply Supplements£9.774.5★
Holland & Barrett Glucosamine Sulphate 1000mg - with Vitamin C - 120 Tablets
Holland & Barrett£12.624.4★
What buyers say about glucosamine sulphate
What buyers praise and complain about, mined from review topics.What buyers love
“It is to help with joint pain”
“Best value”
“Excellent combo product”
“As advertised”
“not difficult to swallow”
“easy to use”
“Take these vitamins regularly easy to swallow”
“Apparently effective”
“EFFECTIVE”
“Excellent for muscle cramp”
What buyers complain about
“Taste awful”
“These capsules are rather large”
“which may be difficult for those who struggle with swallowing bulky supplements”
“Didn't work for me”
“Back pain”
“Aching ankles”
“Had a few side effects”
“Our Glucosamine and Chondroitin Complex is not halal”
“I was suffering from a 3 month cycling repetitive hip strain”
“Different colour”
Common questions
- Is glucosamine sulphate profitable to sell on Amazon United Kingdom?
- The niche generates £125K/yr across 22 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is -3.4%. Flapen's verdict: Skip it (45/100).
- How competitive is the glucosamine sulphate niche?
- 12 brands and 30 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in glucosamine sulphate?
- Top complaints mined from reviews: Taste-Overall, Size-Overall, Ease Of Chewing/Swallowing. The return rate is 0.0%.
- When does demand for glucosamine sulphate peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the glucosamine sulphate niche?
- Listings span £6.73–£18.19; the average listing price is £11.02 (sweet spot $15–$100). The average incumbent carries 1,714 reviews — the moat a new listing must climb.