Is brain profitable to sell on Amazon United States?

The niche generates $918K/yr across 12 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -21.8%. Flapen's verdict: Worth a look (50/100).

How competitive is the brain niche?

6 brands and 31 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 98% of demand.

What do buyers complain about in brain?

Top complaints mined from reviews: Value For Money, Functionality-Overall, Side Effects. The return rate is 0.1%.

When does demand for brain peak?

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

What does it cost to enter the brain niche?

Listings span $16.05–$73.72; the average listing price is $48.26 (sweet spot $15–$100). The average incumbent carries 5,643 reviews — the moat a new listing must climb.

brain

Worth a look

Shows low returns (0.1%), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Price range

Incredible$16.05–$73.72

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

Avg price

Great$48.26

avg listing price — sweet spot $15–$100

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Market size

Great$918K

$918K/yr · 598K searches

Conversion

Okay3.2%

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

Review moat

Bad5,642.67

avg incumbent reviews — the moat a new listing must climb

Competition

Bad74%

top-5 click share — a locked-up shelf

Growth

Bad-21.8%

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

Brand share

Bad98%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, brain is a $918K/yr Amazon United States market (598K searches/yr). The top 5 brands hold 98% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

brain market data

Units sold / yr: 25K–30K; avg 4,000–5,000/product
Revenue / yr: $1.2M–$1.4M; units × avg price
Conversion rate: 3.2%
Avg BSR: #217
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 48 months
Avg seller age: 151 days

Competition & brand share

The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 rising

Sellers

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

74%

Top 20: 100%

Open market

Stonehenge Health82%
Merhoff & Larkin7%
Ancestral Supplements4%
Natures Craft3%
Nature's Peak2%
NEURIVA2%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -21.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top brain search terms

brain282K/yr -9.1%0.2% conv.
stonehenge health dynamic brain109K/yr -45.9%11.2% conv.
stonehenge health51K/yr -9.3%4.4% conv.
stonehenge31K/yr +7.7%2.5% conv.
dynamic brain17K/yr -18.4%9.0% conv.
dynamic brain memory supplement70K/yr -77.2%4.0% conv.
cerebro11K/yr -7.3%0.3% conv.
dynamic brain stonehenge6K/yr +63.6%9.4% conv.
beef brain7K/yr -1.7%2.8% conv.
stonehenge dynamic brain4K/yr -24.9%12.5% conv.

All search terms

Top brain 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 12 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Stonehenge Health Dynamic Brain BacoMind Bacopa Monnieri Nootropic Memory Recall & Retention 40 Brain-Boosting Ingredients Phosphatidylserine Huperzine A DHA & Choline Non-GMO 60 Caps

Stonehenge Health$56.104.3★1,723 rev

Stonehenge Health Dynamic Mushrooms 1 400 mg Per Serving 5 Mushroom Complex (Lions Mane Reishi Chaga Maitake Shiitake) 100% Fruiting Bodies No Mycelium Brain Memory & Immune Support 60 Caps

Stonehenge Health$52.054.3★2,163 rev

Cross Section Foam Brain Model | Free Stand Answer Sheet & Digital Worksheet | Educational Tool Learning & Teaching Human Anatomical Function Psychology Biology or Science | 2 Labeled Half Pieces

Merhoff & Larkin$24.894.3★646 rev

Stonehenge Health Dynamic Joint Health Supplement AprsFlex Boswellia Serrata Fast-Acting Joint Support & Comfort MSM Multi-Type Collagen Turmeric Bromelain Vitamins C & D3 | 60 Capsules

Stonehenge Health$64.134.0★747 rev

Stonehenge Health Dynamic Nerve Supplement - Supports Nerve Function in Fingers Toes Hands and Feet with Alpha Lipoic Acid ALA Benfotiamine Pea Robust B Complex Boswellia

Stonehenge Health$54.563.9★1,384 rev

Newest

by launch date

Stonehenge Health Dynamic Calm - 600mg KSM-66 Ashwagandha with L-theanine Rhodiola Rosea Holy Basil and Magnesium Glycinate Daily Stress and Mood Support Non-GMO 60 Vegetarian Capsules

Stonehenge Health$53.1049 rev

5mo ago

Stonehenge Health Dynamic GLP-1 Nutrition Support Supplement for Women Men 550mg Berbevis Berberine 10x Better Absorbed Akkermansia DNF-10 Capsifen Support Appetite Gut Health - 60 Veg Caps

Stonehenge Health$73.7277 rev

9mo ago

Stonehenge Health for Women Menopause Support for Peri + Menopause + Post - Mood Energy Stress Hot Flashes Night Sweats Sleep & Cortisol Chromax Chromium Vitamin D3 KSM-66 Ashwagandha

Stonehenge Health$57.18344 rev

1y ago

Stonehenge Health Dynamic Brain BacoMind Bacopa Monnieri Nootropic Memory Recall & Retention 40 Brain-Boosting Ingredients Phosphatidylserine Huperzine A DHA & Choline Non-GMO 60 Caps

Stonehenge Health$56.101,723 rev

1y ago

Stonehenge Health Dynamic Joint Health Supplement AprsFlex Boswellia Serrata Fast-Acting Joint Support & Comfort MSM Multi-Type Collagen Turmeric Bromelain Vitamins C & D3 | 60 Capsules

Stonehenge Health$64.13747 rev

2y ago

What buyers say about brain

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

What buyers love

Quality-Overall15%

“Overall, it seems like a decent option ingredient wise,”

Focus Enhancement13%

“Helps with focus and concentration”

Joint Pain11%

“Seems to help with joint pain”

Efficiency9%

“its doing a great job”

Advertised Vs Actual Product6%

“Just as advertised”

Vitamin5%

“Superb Supplement”

Ingredients-Overall4%

“great ingredients”

Ease Of Use3%

“Ease of Use”

Value For Money3%

“worth it”

Energy Level3%

“The energy level is really worth every bit of it”

What buyers complain about

Value For Money17%

“Too expensive”

Functionality-Overall17%

“No results with this product”

Side Effects8%

“Terrible dude effects”

Dosage4%

“I was short in the amount of pills by 6. I know this is a minimal amount”

Acid Regulator/Stomach Ache Relief4%

“My stomach felt a tad upset”

Vitamin4%

“Too much Vitamin B. Be careful when taking this supplement”

Joint Pain4%

“this EXPENSIVE supplement did NOTHING for my joint pain”

Weight Loss3%

“no weight loss”

Pain Relief-Overall3%

“started noticing back pain”

Size-Overall3%

“Small”

Top return reasons

Size-Overall21%

Advertised Vs Actual Product14%

Functionality-Overall7%

Value For Money7%

Quality-Overall6%

Defective Material/Parts6%

Side Effects5%