Is msm profitable to sell on Amazon United States?

The niche generates $1.9M/yr across 33 tracked products. 90-day search growth is +13.7%. Flapen's verdict: Launch it (67/100).

How competitive is the msm niche?

21 brands and 41 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 68% of demand.

What do buyers complain about in msm?

Top complaints mined from reviews: Taste-Overall, Dosage, Pain Relief-Overall. The return rate is 0.0%.

When does demand for msm peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the msm niche?

Listings span $9.20–$77.57; the average listing price is $24.80 (sweet spot $15–$100). The average incumbent carries 4,542 reviews — the moat a new listing must climb.

Msm

Launch it

A $1.9M/yr market growing +13.7% this quarter with returns at 0.0% — clears our launch bar.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$24.80

avg listing price — sweet spot $15–$100

Market size

Great$1.9M

$1.9M/yr · 946K searches

Price range

Great$9.20–$77.57

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great8.1%

search→purchase rate — share of searches ending in a sale

Competition

Good46%

top-5 click share — leaders hold, buyers still browse

Brand share

Good68%

top-5 brand share — brands hold most of the demand

Growth

Okay+13.7%

90-day search growth — must beat 0% to launch

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad4,542.48

avg incumbent reviews — the moat a new listing must climb

Is msm profitable on Amazon?

According to Flapen's Amazon United States niche tracking, msm is a $1.9M/yr Amazon United States market (946K searches/yr). The top 5 brands hold 68% of demand. Verdict: Launch it — 67/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

msm market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 80K–100K; avg 2,500–3,000/product
Revenue / yr: $2.0M–$2.5M; units × avg price
Conversion rate: 8.1%
Avg BSR: #364
Page quality: 0%
Prime: 100%
Sponsored: 67%
Out of stock: 0.0%
Avg brand age: 87 months
Avg seller age: 160 days

Competition: brands, sellers & click share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 rising

Sellers

Top-5 brand share

68%

Top 20: 99%

Top-5 click share

46%

Top 20: 88%

Open market

26%

NOW Foods26%
Nutricost13%
BulkSupplements12%
Doctor's BEST11%
Pure Encapsulations6%
Amazing Nutrition6%

msm demand & seasonality

Weekly Amazon search volume, last 104 weeks — +13.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top msm search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

msm400K/yr +13.7%7.4% conv.
msm supplement284K/yr +23.2%7.5% conv.
msn109K/yr -8.1%0.7% conv.
msm 1000mg capsules29K/yr +81.0%10.8% conv.
msn supplements21K/yr +10.1%6.7% conv.
msm capsules40K/yr -46.1%7.9% conv.
methylsulfonylmethane11K/yr -1.8%6.7% conv.
now msm8K/yr +3.3%12.3% conv.
msm nutritional supplements7K/yr +17.6%3.4% conv.
msm supplements for women4K/yr +69.9%3.7% conv.

All search terms

Top msm products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

NOW Supplements MSM (Methylsulfonylmethane) 1 000 mg Joint Health* 240 Veg Capsules

NOW Foods$18.744.6★5,945 rev

Nutricost MSM Tablets Methylsulfonylmethane 2000mg Per Serving 240 Tablets

Nutricost$17.734.6★627 rev

NOW Foods Supplements MSM (Methylsulfonylmethane) 1 000 mg Joint Health* 120 Veg Capsules

NOW Foods$10.764.6★1,754 rev

BulkSupplements.com MSM Capsules - Methylsulfonylmethane MSM 3000mg - Joint Supplements Gluten Free 4 Capsules per Serving 240 Count (Pack of 1)

BulkSupplements$18.034.6★240 rev

Amazing Nutrition$9.904.4★409 rev

Newest

by launch date

BulkSupplements.com MSM Capsules - Methylsulfonylmethane MSM 3000mg - Joint Supplements Gluten Free 4 Capsules per Serving 240 Count (Pack of 1)

BulkSupplements$18.03240 rev

3y ago

Amazing Nutrition$9.90409 rev

3y ago

Pure MSM Powder | Organic Sulfur Powder for Skin Hair and Nails | Cellular Detox Joint Health Immune Boost & Increased Energy | 99.9% Pure MSM Supplement | Made in the USA 0g Sugar (64 Servings)

Human Improvement$34.07205 rev

3y ago

Horbach MSM Supplement | 3000mg | 300 Coated Caplets

Horbäach$23.87418 rev

4y ago

Horbach MSM Supplement Capsules | 1000mg | 250 Count

Horbäach$14.39447 rev

4y ago

What reviews say buyers love and hate about msm

What buyers praise and complain about, mined from review topics.

What buyers love

Joint Pain28%

“Eases joint pain”

Quality-Overall17%

“Excellent product”

Value For Money7%

“Reasonably priced”

Vitamin6%

“I Buy These Vitamins They Pure Vitamins”

Efficiency5%

“Effective”

Advertised Vs Actual Product4%

“Exactly as advertised”

Ease Of Chewing/Swallowing3%

“The capsules are easy to take”

Muscle Pain Relief2%

“Helps so much with muscle soreness”

Nutritional Content2%

“Helpful supplement”

Ease Of Use2%

“Easy to use”

What buyers complain about

Taste-Overall8%

“The taste of the product is gross to me”

Dosage8%

“Too many capsule to obtain dose”

Pain Relief-Overall7%

“did not reduce pain”

Functionality-Overall7%

“Did not work”

Size-Overall7%

“Tablets are huge”

Joint Pain6%

“As soon as I switched to this brand my arthritis started hurting”

Side Effects6%

“Headaches”

Ingredients-Overall4%

“that's not in the ingredient list”

Ease Of Chewing/Swallowing3%

“Hard to swallow”

Value For Money3%

“They are expensive”

Top return reasons

Dosage21%

Charging14%

Maintenance And Repair7%

Functionality-Overall7%

Joint Pain7%

Magnesium7%

Value For Money7%

Vitamin7%

Advertised Vs Actual Product7%

Side Effects7%

Common msm questions

Is msm profitable to sell on Amazon United States?: The niche generates $1.9M/yr across 33 tracked products. 90-day search growth is +13.7%. Flapen's verdict: Launch it (67/100).
How competitive is the msm niche?: 21 brands and 41 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in msm?: Top complaints mined from reviews: Taste-Overall, Dosage, Pain Relief-Overall. The return rate is 0.0%.
When does demand for msm peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the msm niche?: Listings span $9.20–$77.57; the average listing price is $24.80 (sweet spot $15–$100). The average incumbent carries 4,542 reviews — the moat a new listing must climb.

Msm

Is msm profitable on Amazon?

msm market size & sales

Competition: brands, sellers & click share

msm demand & seasonality

Top msm search terms shoppers use

Top msm products & what they sell for

Top sellers

Newest

Trending

What reviews say buyers love and hate about msm

What buyers love

What buyers complain about

Top return reasons

Common msm questions

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