Nsk-sd
MaybeAn estimated 0.0% of orders come back. But shoppers spend an estimated $75K a year here, so Nsk-sd is a Maybe.
- Flapen Score
- 51 / 100Top 40% of 14,768 Health & Household niches · +2 vs the category median of 4951
- Market size
- $75K/yr23K searches / yr
- 90-day growth
- +32.5%search demand this quarter
- Competition
- 65%top-5 click share · 13 brands · 497 sellers
Flapen Score
Nsk-sd against its category
The dotted line is the Health & Household average. Past it, Nsk-sd is stronger. Inside it, weaker.
Market
The Nsk-sd market on Amazon at a glance
Shoppers on Amazon United States searched for Nsk-sd 23K times last year and spent an estimated $75K. The top 5 brands take 80% of clicks. Flapen scores it 51 out of 100, a Maybe.
01 · Demand
An estimated 6.9% of those searches ended in a purchase.
Shoppers searched for this 23K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 6.9% of those searches ended in a purchase. Searches in the last 90 days moved +32.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $75K a year.
- Searches, last 12 months
- 23K
- Growth, 90 days vs prior 90
- +32.5%
- Conversion, latest week
- 6.9%
- Market size, estimated
- $75Ka year
- Top search term
- nsk-sd nattokinase9K searches a year
02 · Price
A sale here is worth $46.34.
Listings sell for $46.34 on average, from $14.61 to $148.01. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 100 to 250 of them. At $46.34 that is $5K to $12K a year per listing.
- Average price
- $46.34inside the $15 to $100 sweet spot
- Price range
- $14.61–$148.01
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–2K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $5K–$12K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
94% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.4% of listings are out of stock. The average listing ranks #685 within Enzymes. It carries 1,247 reviews at 4.60 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 94%
- Prime listings
- 100%
- Out of stock, average day
- 0.4%
- Average rank
- #685in Enzymes
- Average rating
- 4.60 starsAmazon United States average 4.42 stars
- Average reviews
- 1,247per listing
- Listings tracked
- 17
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 62 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 62 months
Products
Top Nsk-sd products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 26, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Pure Encapsulations NSK-SD - 100 mg Nattokinase - for Normal Blood Circulation - Supports Fibrinolytic Activity* - Gluten Free & Non-GMO - 60 Capsules
- Price
- $80.03
- Rating
- 4.7/5
- Reviews
- 277
- Age
- 16y ago

Source Naturals NSK-SD Nattokinase Systemic Enzyme for Healthy Circulation* 100mg - 60 Vegan Capsules
- Price
- $19.55
- Rating
- 4.7/5
- Reviews
- 311
- Age
- 21y ago

Pure Encapsulations NSK-SD - 100 mg Nattokinase - for Normal Blood Circulation - Supports Fibrinolytic Activity* - Gluten Free & Non-GMO - 120 Capsules
- Price
- $148.01
- Rating
- 4.7/5
- Reviews
- 277
- Age
- 18y ago

Doctors Best Nattokinase Non-GMO Vegan Gluten Free 270 Veggie Caps
- Price
- $31.81
- Rating
- 4.6/5
- Reviews
- 8,981
- Age
- 15y ago

Klaire Labs SFI Health Nattokinase NSK-SD - Proteolytic Enzyme for Cardiovascular Support Dairy & Gluten-Free (60 Capsules)
- Price
- $43.72
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 12y ago
Trending
estimated 90-day click momentum
Source Naturals NSK-SD Nattokinase Vegetarian Friendly Whole Body Systemic Enzyme for Healthy Circulation* 200 mg - 60 Vegetarian Capsules
- Price
- $31.48
- Rating
- 4.9/5
- Reviews
- 28
- Age
- 2y ago

Pure Encapsulations NSK-SD - 100 mg Nattokinase - for Normal Blood Circulation - Supports Fibrinolytic Activity* - Gluten Free & Non-GMO - 120 Capsules
- Price
- $148.01
- Rating
- 4.7/5
- Reviews
- 277
- Age
- 18y ago

Allergy Research Group - Nattokinase Supplement NSK-SD 2000 FU 100mg - Cardiovascular/Circulatory Health - 60 Softgels
- Price
- $48.45
- Rating
- 4.6/5
- Reviews
- 389
- Age
- 19y ago

Doctors Best Nattokinase Non-GMO Vegan Gluten Free 270 Veggie Caps
- Price
- $31.81
- Rating
- 4.6/5
- Reviews
- 8,981
- Age
- 15y ago

Enzyme Science Nattokinase Pro with NSK-SD - Organic Supplement - Best enzymes for Cardiovascular and Circulatory Support - Vegan and Kosher - 60 Capsules
- Price
- $44.24
- Rating
- 4.3/5
- Reviews
- 73
- Age
- 6y ago
Newest
by launch date
Himalaya NSK-SD Nattokinase Dietary Supplement for Healthy Circulation Vegan Gluten Free Natto Extract 100 mg 60 Capsules
- Price
- $51.69
- Rating
- 4.3/5
- Reviews
- 42
- Age
- 1y ago

Nutrient Revolution NSK-SD Nattokinase - Cardiovascular Support - High Potency Nattokinase Supplement - Optimizes Circulation Non-GMO Vegetarian JHFA & JNKA Recognized - 60 Ct
- Price
- $29.09
- Rating
- 4.3/5
- Reviews
- 30
- Age
- 2y ago

Luma Nutrition Nattokinase Supplement - Natto 4000 FU Per Serving Premium Heart Health Support - Vegan & Gluten Free - 60 Capsules 30 Servings
- Price
- $19.75
- Rating
- 4.6/5
- Reviews
- 1,584
- Age
- 2y ago

Source Naturals NSK-SD Nattokinase Vegetarian Friendly Whole Body Systemic Enzyme for Healthy Circulation* 200 mg - 60 Vegetarian Capsules
- Price
- $31.48
- Rating
- 4.9/5
- Reviews
- 28
- Age
- 2y ago

Source Naturals NSK-SD Nattokinase Vegetarian Friendly Whole Body Systemic Enzyme for Healthy Circulation* 200 mg - 30 Vegetarian Capsules
- Price
- $15.26
- Rating
- 4.9/5
- Reviews
- 28
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 65% of clicks. Leaders hold, but buyers still shop past them.
Brands
13 falling
Sellers
497
Est. top-5 brand share
80%
Top 20: 100%
Est. top-5 click share
65%
Top 20: 100%
Open market
16%
- Pure Encapsulations36%
- Source Naturals23%
- Doctor's BEST8%
- SFI Health7%
- Double Wood Supplements6%
- Allergy Research Group5%
- Open — no brand owns it (7 brands, 16%)
Demand
Nsk-sd search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Jul · busiest ÷ quietest = 4.6× · 7 of 12 months tracked
Search terms
Top Nsk-sd search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- nsk-sd nattokinase9K/yr
- nattokinase nsk-sd6K/yr
- nsk-sd5K/yr
- pure encapsulations nattokinase4K/yr
Reviews and returns
What reviews say buyers love and hate about Nsk-sd
We read the reviews and the return reasons for every product selling here.
“Need a little higher single capsule dosage”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Nsk-sd questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









