Is nattokinase 10800 fu profitable to sell on Amazon United States?

The niche generates $988K/yr across 44 tracked products. 24 of 28 products launched in the last 360 days are still selling. 90-day search growth is +22.0%. Flapen's verdict: Launch it (78/100).

How competitive is the nattokinase 10800 fu niche?

34 brands and 50 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 37% of demand.

What do buyers complain about in nattokinase 10800 fu?

Top complaints mined from reviews: Dosage, Blood Pressure, Value For Money. The return rate is 0.0%.

What does it cost to enter the nattokinase 10800 fu niche?

Listings span $10.16–$80.03; the average listing price is $35.45 (sweet spot $15–$100). The average incumbent carries 553 reviews — the moat a new listing must climb.

nattokinase 10800 fu

Launch it

A $988K/yr market growing +22.0% this quarter with returns at 0.0% — clears our launch bar.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Brand share

Incredible37%

top-5 brand share — no brand owns this niche

Avg price

Incredible$35.45

avg listing price — sweet spot $15–$100

Price range

Great$10.16–$80.03

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

Competition

Great33%

top-5 click share — an open shelf

Conversion

Great8.6%

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

Market size

Great$988K

$988K/yr · 324K searches

Review moat

Good553.2

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Good+22.0%

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

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, nattokinase 10800 fu is a $988K/yr Amazon United States market (324K searches/yr). The top 5 brands hold 37% of demand. Verdict: Launch it — 78/100.

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

nattokinase 10800 fu market data

Units sold / yr: 20K–25K; avg 500–750/product
Revenue / yr: $709K–$886K; units × avg price
Conversion rate: 8.6%
Avg BSR: #1,704
Page quality: 0%
Prime: 95%
Sponsored: 100%
Out of stock: 5.5%
Avg brand age: 54 months
Avg seller age: 170 days

Competition & brand share

Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.

Brands

34 rising

Sellers

Top-5 brand share

37%

Top 20: 89%

Top-5 click share

33%

Top 20: 79%

Open market

57%

Micro Ingredients8%
Kyndernl8%
GizmoBox7%
Naering7%
PurrVita7%
GREAT BILLIOM6%

Demand

Weekly Amazon search volume, last 16 weeks — +22.0% search growth over the last 90 days.

Open Trend

Top nattokinase 10800 fu search terms

nattokinase 10800 fu213K/yr +61.2%7.1% conv.
healthletic nattokinase 10800 fu44K/yr -8.3%3.9% conv.
healthletic nattokinase26K/yr -50.3%1.7% conv.
ultimate nattokinase16K/yr -27.0%2.7% conv.
ultimate nattokinase 10800 fu7K/yr -19.4%7.1% conv.
nattokinase 108004K/yr +4.0%6.0% conv.
healthletic ultimate nattokinase3K/yr +5.7%3.0% conv.
nattokinase healthletic2K/yr -1.9%2.5% conv.
nattokinase 10 800 fu3K/yr -44.0%4.8% conv.
healthletic ultimate nattokinase 10800 fu3K/yr -52.9%2.8% conv.

All search terms

Top nattokinase 10800 fu 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Micro Ingredients Nattokinase 10 000 FU Per Serving (Natural Natto Extract) 240 Vegetarian Capsules | with CoQ10 Turmeric Aged Garlic & Pine Bark Extract | Non-GMO Lab Tested cGMP Manufactured

Micro Ingredients$29.604.4★175 rev

PurrVita Nattokinase 10800 fu Ultimate Nattokinase 10800 fu Capsules Organic Nattokinase Supplement for Daily Wellness Support Vegan Gluten-Free 60 Capsules

PurrVita$37.714.6★38 rev

GREAT BILLIOM Nattokinase 10800 FU with Vitamin K2 MK-7 & Serrapeptase 240 000 SPU Supplement Natto Enzyme Heart Health Supplements for Blood Flow & Circulation Support 90 Capsules

GREAT BILLIOM$18.354.3★50 rev

Kynderynl Nattokinase Supplement 10000FU Organic Natto Enzyme 500mg for Circulatory Wellness Enteric-Coated Tablets Aiding Digestion & Assisting Absorption Vegan 90 Tablets (90-Day Supply)

Kyndernl$22.624.6★252 rev

Ultimate Nattokinase 10800 FU Supplement Natural Support for Circulation & Cardiovascular Health Odorless Fermented Soy Enzyme Easy Daily Routine 60 Capsules

zdiwond$35.224.1★129 rev

Newest

by launch date

THEREXA Nattokinase 10800 FU - Enzyme Activity with Ultimate Nattokinase Supplement Enteric-Coated Capsules Aiding Digestion & Assisting Absorption - 120 Capsules

THEREXA$26.9849 rev

2mo ago

GREAT BILLIOM Nattokinase 10800 FU with Vitamin K2 MK-7 & Serrapeptase 240 000 SPU Supplement Natto Enzyme Heart Health Supplements for Blood Flow & Circulation Support 90 Capsules

GREAT BILLIOM$18.3550 rev

3mo ago

PurrVita Nattokinase 10800 fu Ultimate Nattokinase 10800 fu Capsules Organic Nattokinase Supplement for Daily Wellness Support Vegan Gluten-Free 60 Capsules

PurrVita$37.7138 rev

3mo ago

Art anime Ultimate Nattokinase Capsules Nattokinase Supplement Organic 10800 FU Per Serving Nattokinase Organic for Body Health and Daily Wellness Support Vegan Gluten Free 60 Capsules (2)

Art anime$53.5141 rev

4mo ago

GizmoBox Ultimate Nattokinase 10800 fu Nattokinase Supplement Healthy Circulation & Daily Wellness Support Vegan Gluten Free 60 Vegetarian Capsules Non-GMO (2)

GizmoBox$57.4612 rev

4mo ago

What buyers say about nattokinase 10800 fu

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

What buyers love

Quality-Overall15%

“Excellent Product”

Heart Health7%

“Lowered cholesterol”

Value For Money6%

“Great deal”

Ease Of Chewing/Swallowing6%

“The product is easy to consume”

Vitamin6%

“Great vitamin”

Ease Of Use5%

“Easy to Take”

Side Effects4%

“Don't have any side effects”

Advertised Vs Actual Product4%

“AS DESCRIBED”

Dosage4%

“Useful Dosage”

Blood Pressure4%

“Great for my blood pressure”

What buyers complain about

Dosage8%

“Very high dose”

Blood Pressure5%

“Seems to be working BP a little lower”

Value For Money5%

“Expensive and useless”

Heart Health5%

“This can actually cause your cholesterol to go up”

Advertised Vs Actual Product4%

“Completely misleading”

Side Effects4%

“made me very sick”

Ingredients-Overall4%

“Bad ingredients”

Functionality-Overall3%

“Not effective”

Taste-Overall3%

“tasteless to me”

Quality-Overall3%

“no guarantee of quality control”

Top return reasons

Side Effects25%

Blood Pressure17%

Value For Money17%

Certifications8%

Leak-Proof8%

Thin8%

Fever Relief8%

Accuracy-Overall4%

Quality-Overall4%

Common questions

Is nattokinase 10800 fu profitable to sell on Amazon United States?: The niche generates $988K/yr across 44 tracked products. 24 of 28 products launched in the last 360 days are still selling. 90-day search growth is +22.0%. Flapen's verdict: Launch it (78/100).
How competitive is the nattokinase 10800 fu niche?: 34 brands and 50 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 37% of demand.
What do buyers complain about in nattokinase 10800 fu?: Top complaints mined from reviews: Dosage, Blood Pressure, Value For Money. The return rate is 0.0%.
What does it cost to enter the nattokinase 10800 fu niche?: Listings span $10.16–$80.03; the average listing price is $35.45 (sweet spot $15–$100). The average incumbent carries 553 reviews — the moat a new listing must climb.