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mass gainer

Skip it

Weak search conversion (0.6%) — this niche doesn't clear our bar today.

Market size 23Growth 54Conversion 7Competition 27Returns 90Price range 26Avg price 55Brand share 38Review moat 40Quality gap 78

Returns

Great1.3%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$159.89

avg listing price — sweet spot $15–$100

Growth

Good+25.6%

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

Review moat

Okay2,513.28

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay82%

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

Competition

Okay69%

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

Price range

Okay$50.00–$244.25

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

Market size

Bad$93K

$93K/yr · 99K searches

Conversion

Bad0.6%

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

According to Flapen's Amazon United Arab Emirates niche tracking, mass gainer is a $93K/yr Amazon United Arab Emirates market (99K searches/yr). The top 5 brands hold 82% of demand. Verdict: Skip it — 43/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

mass gainer market data

Units sold / yr
750–1K
avg 0–100/product
Revenue / yr
$120K–$160K
units × avg price
Conversion rate
0.6%
Avg BSR
#295
Page quality
0%
Prime
72%
Sponsored
28%
Out of stock
12.7%
Avg brand age
69 months
Avg seller age
74 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

36

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

13%

  • Muscletech30%
  • Dymatize24%
  • Optimum Nutrition17%
  • PVL7%
  • DEXTER JACKSON5%
  • Body Builder4%
  • Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +25.6% search growth over the last 90 days.
3K2KHoliday '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top mass gainer search terms

  • mass gainer62K/yr
  • gainer14K/yr
  • weight gainer for men8K/yr
  • mass7K/yr
  • weight gainer5K/yr
  • mass gainer protein powder3K/yr
All search terms

Top mass gainer 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.

0%10%$9K20%$19K30%$28K40%$37K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

All 18 tracked products in this niche — three views at once, no toggling.

What buyers say about mass gainer

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

What buyers love

الجودة الشاملة100%

“Good product”

What buyers complain about

الذوق العام50%

“It is Tasteless. Awful”

حالة المنتج25%

“I received the product unsealed with marks that it was used before”

يشم25%

“Bad smell and taste”

Top return reasons

القيمة مقابل المال67%
الصيانة والإصلاح33%

Common questions

Is mass gainer profitable to sell on Amazon United Arab Emirates?
The niche generates $93K/yr across 18 tracked products. 90-day search growth is +25.6%. Flapen's verdict: Skip it (43/100).
How competitive is the mass gainer niche?
12 brands and 36 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in mass gainer?
Top complaints mined from reviews: الذوق العام, حالة المنتج, يشم. The return rate is 1.3%.
When does demand for mass gainer peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the mass gainer niche?
Listings span $50.00–$244.25; the average listing price is $159.89 (sweet spot $15–$100). The average incumbent carries 2,513 reviews — the moat a new listing must climb.