msn
Skip itSoft demand (-3.0% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great8.0%search→purchase rate — share of searches ending in a sale
Brand share
Good70%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Good£12.04avg listing price — sweet spot $15–$100
Review moat
Okay1,653.21avg incumbent reviews — the moat a new listing must climb
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Price range
Okay£4.11–£19.88cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad£94K£94K/yr · 98K searches
Growth
Bad-3.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, msn is a £94K/yr Amazon United Kingdom market (98K searches/yr). The top 5 brands hold 70% of demand. Verdict: Skip it — 48/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
msn market data
- Units sold / yr
- 8K–10K
- avg 250–500/product
- Revenue / yr
- £96K–£120K
- units × avg price
- Conversion rate
- 8.0%
- Avg BSR
- #188
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 63%
- Out of stock
- 0.4%
- Avg brand age
- 75 months
- Avg seller age
- 174 days
Competition & brand share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
15 rising
Sellers
20
Top-5 brand share
70%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
23%
- WeightWorld27%
- ALPHA0117%
- Vegavero10%
- Nutravita8%
- Horbäach8%
- Natures Aid7%
Demand & seasonality
Weekly Amazon search volume, last 101 weeks — -3.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top msn search terms
- msm55K/yr
- msm supplements21K/yr
- msm capsules9K/yr
- msn4K/yr
- msn supplements3K/yr
- msm tablets3K/yr
- msm supplement3K/yr
Top msn 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 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MSM Supplements 2500mg - with Vitamin C - 360 MSM Tablets - 6 Months Supply - Vegan Non-GMO & GMP-Approved - Easy to Swallow - Methylsulfonylmethane Tablets - Source of Sulphur
WeightWorld£13.944.6★1,633 rev
MSM 3000mg with Vitamin C & BioPerine - 120 Vegan Capsules Supports Collagen Formation for Healthy Skin - High Potency Methylsulfonylmethane By Alpha01
ALPHA01£7.334.6★219 rev
Nutravita MSM 2200mg Tablets 365 Vegan Tablets Methylsulfonylmethane with 80mg Vitamin C 6 Month Supply - Made in the UK
Nutravita£11.134.3★1,063 rev
MSM Supplements 3000mg with Vitamin C | High Strength Methylsulfonylmethane MSM with VIT C | 120 Vegan Tablets (Not Capsules) | By Horbaach
Horbäach£5.494.4★48 rev
Natures Aid MSM 1000mg High Strength Methylsulphonylmethane Supplement Supports Joints Mobility & Skin Pure MSM Vegan Gluten Free 90 Tablets
Natures Aid£7.054.5★354 rev
Newest
by launch date
Glucosamine Chondroitin MSM Advanced Joint Support Supplement with Vitamin C Zinc & Boswellia 180 Tablets (3-Month Supply) Cartilage Bone & Mobility Health Vitavea Quality
Vitavea£10.0639 rev
Vegavero Pure MSM Powder 300 gr | Bag | Distilled Organic Sulphur | NO Additives & Non-GMO | Lab-Tested | 1000 g Per Day | Vegan
Vegavero£12.387,878 rev
MSM Supplements 3000mg with Vitamin C | High Strength Methylsulfonylmethane MSM with VIT C | 120 Vegan Tablets (Not Capsules) | By Horbaach
Horbäach£5.4948 rev
MSM 3 000mg | with Added Vitamin C | Supports Healthy Joints Skin and Immune Function | Vegan & Vegetarian Friendly | Made in The UK
Simply Supplements£12.5034 rev
MSM Supplements 2500mg - with Vitamin C - 360 MSM Tablets - 6 Months Supply - Vegan Non-GMO & GMP-Approved - Easy to Swallow - Methylsulfonylmethane Tablets - Source of Sulphur
WeightWorld£13.941,633 rev
Trending
90-day click momentumGlucosamine Chondroitin MSM Advanced Joint Support Supplement with Vitamin C Zinc & Boswellia 180 Tablets (3-Month Supply) Cartilage Bone & Mobility Health Vitavea Quality
Vitavea£10.064.2★
Vegavero Pure MSM Powder 300 gr | Bag | Distilled Organic Sulphur | NO Additives & Non-GMO | Lab-Tested | 1000 g Per Day | Vegan
Vegavero£12.384.4★
Nutravita MSM 2200mg Tablets 365 Vegan Tablets Methylsulfonylmethane with 80mg Vitamin C 6 Month Supply - Made in the UK
Nutravita£11.134.3★
KIKI Health Natural MSM Flakes Supplement- Pure Sulphur for Joints Skin Hair & Nails - No Additives Easy Formulation - 99.9% Purity - Water-Soluble Gluten-Free & Vegan-Friendly MSM Flakes
KIKI HEALTH£9.204.7★
MSM Powder 1Kg | Methyl Sulfonyl Methane - 100% Pure Vegan GMO Free No Additives
Peak Supps£15.734.6★
What buyers say about msn
What buyers praise and complain about, mined from review topics.What buyers love
“Good Price”
“Good for joints”
“Such a great quality products, the health benefits are excellent if used safely & consistently”
“Easy to swallow”
“Overall, this is a reliable, effective supplement that delivers on its promises”
“hair growing wonderfully”
“As advertised”
“Effective”
“Easy to Take”
“It is nice that it has 180 tablets for a 3-month supply”
What buyers complain about
“Capsule sizes are a bit large”
“No real taste”
“they dont seem to help they are ok to swallow”
“Price has gone up a lot”
“Its definitely not a rapid solution for acute joint pain”
“They don't work for me”
“Doesn't seem to have made much difference I still have joint pains”
“I dont feel any more energised or able to think clearer”
“there's barely any in these”
“I don't have the best sense of smell”
Common questions
- Is msn profitable to sell on Amazon United Kingdom?
- The niche generates £94K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.0%. Flapen's verdict: Skip it (48/100).
- How competitive is the msn niche?
- 15 brands and 20 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 70% of demand.
- What do buyers complain about in msn?
- Top complaints mined from reviews: Size-Overall, Taste-Overall, Ease Of Chewing/Swallowing. The return rate is 0.1%.
- When does demand for msn peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the msn niche?
- Listings span £4.11–£19.88; the average listing price is £12.04 (sweet spot $15–$100). The average incumbent carries 1,653 reviews — the moat a new listing must climb.