Is stacker 3 profitable to sell on Amazon United States?

The niche generates $294K/yr across 9 tracked products. 90-day search growth is -0.9%. Flapen's verdict: Skip it (49/100).

How competitive is the stacker 3 niche?

3 brands and 41 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in stacker 3?

Top complaints mined from reviews: Functionality-Overall, Side Effects, Energy Level. The return rate is 0.0%.

When does demand for stacker 3 peak?

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

What does it cost to enter the stacker 3 niche?

Listings span $6.68–$19.42; the average listing price is $15.09 (sweet spot $15–$100). The average incumbent carries 1,092 reviews — the moat a new listing must climb.

stacker 3

Skip it

A concentrated shelf (top 5 take 87% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible14.0%

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

Avg price

Great$15.09

avg listing price — sweet spot $15–$100

Review moat

Good1,092.22

avg incumbent reviews — the moat a new listing must climb

Market size

Good$294K

$294K/yr · 139K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay$6.68–$19.42

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

Brand share

Okay88%

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

Growth

Bad-0.9%

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

Competition

Bad87%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, stacker 3 is a $294K/yr Amazon United States market (139K searches/yr). The top 5 brands hold 88% of demand. Verdict: Skip it — 49/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

stacker 3 market data

Units sold / yr: 15K–20K; avg 1,500–2,000/product
Revenue / yr: $226K–$302K; units × avg price
Conversion rate: 14.0%
Avg BSR: #1,566
Page quality: 0%
Prime: 100%
Sponsored: 33%
Out of stock: 0.0%
Avg brand age: 53 months
Avg seller age: 147 days

Competition & brand share

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

Top-5 brand share

88%

Top 20: 88%

Top-5 click share

87%

Top 20: 100%

Open market

STACKER 274%
--12%
NVE Pharmaceuticals10%
NATURES GENIOUS5%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -0.9% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top stacker 3 search terms

stacker 324K/yr +7.6%15.6% conv.
stacker 226K/yr -1.5%12.8% conv.
stackers24K/yr +12.3%7.0% conv.
stacker21K/yr +13.3%4.5% conv.
stackers energy pills25K/yr -31.1%10.2% conv.
stacker 3 xplc10K/yr -16.3%21.3% conv.
stackers 33K/yr +27.1%21.3% conv.
stacker 2 pills4K/yr -34.1%11.7% conv.
stackers pills3K/yr -17.4%7.7% conv.

All search terms

Top stacker 3 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.

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

All 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Original Stacker 3 XPLC Extreme Performance Formula 80 Capsules

STACKER 2$17.874.5★1,622 rev

Stacker 2 Fat Burner Capsules Ephedra Free 100-Count Bottle

STACKER 2$19.424.5★1,595 rev

Stacker 3 Metabolizing Fat Burner with Chitosan Capsules 100Count Bottle

STACKER 2$18.044.3★3,616 rev

Stacker 3 XPLC by NVE Pharmaceuticals

--$18.204.5★847 rev

NVE Pharmaceuticals Stacker 2 Herbal Dietary Supplement

NVE Pharmaceuticals$7.124.5★478 rev

Newest

by launch date

NATURES GENIOUS NVE Pharmaceuticals Original Stacker3 XPLC 80 Capsules

NATURES GENIOUS$19.1984 rev

2y ago

Stacker 3 XPLC by NVE Pharmaceuticals

--$18.20847 rev

11y ago

STACKER 2 YELLOW HORNET (3) 20CT. BOTTLES

STACKER 2$14.75422 rev

12y ago

Original Stacker 3 XPLC Extreme Performance Formula 80 Capsules

STACKER 2$17.871,622 rev

14y ago

NVE Pharmaceuticals Stacker 2 Herbal Dietary Supplement

NVE Pharmaceuticals$7.12478 rev

15y ago

What buyers say about stacker 3

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

What buyers love

Energy Level36%

“Helped with energy”

Quality-Overall13%

“Good quality”

Value For Money7%

“Best price”

Weight Loss7%

“I've been taking for energy and loosing weight”

Focus Enhancement7%

“I can focus”

Advertised Vs Actual Product5%

“Just as advertised”

Nutritional Content3%

“I never thought a supplement could give me this much energy”

Sleep Quality3%

“They give me the boost to get my morning started”

Acid Regulator/Stomach Ache Relief2%

“really curb my appetite”

Color2%

“Pretty”

What buyers complain about

Functionality-Overall18%

“Just don't do what I did”

Side Effects10%

“- taking this medication caused me to have serotonin syndrome”

Energy Level9%

“I dont feel like they give me the same energy at all”

Heart Health9%

“Can cause a heart attack”

Strength6%

“VERY STRONG”

Quality-Overall6%

“Garbage”

Sleep Quality6%

“The first day I got almost no sleep that night”

Advertised Vs Actual Product6%

“Does not work false advertising”

Ingredients-Overall5%

“His doctor didnt say too much about the ingredients other than chromium is a little high”

Dosage3%

“Never take two at once”

Top return reasons

Side Effects38%

Ingredients-Overall25%

Functionality-Overall25%

Comfort-Overall13%

Common questions

Is stacker 3 profitable to sell on Amazon United States?: The niche generates $294K/yr across 9 tracked products. 90-day search growth is -0.9%. Flapen's verdict: Skip it (49/100).
How competitive is the stacker 3 niche?: 3 brands and 41 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in stacker 3?: Top complaints mined from reviews: Functionality-Overall, Side Effects, Energy Level. The return rate is 0.0%.
When does demand for stacker 3 peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the stacker 3 niche?: Listings span $6.68–$19.42; the average listing price is $15.09 (sweet spot $15–$100). The average incumbent carries 1,092 reviews — the moat a new listing must climb.