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Sulforaphane

Maybe

An estimated 0.1% of orders come back. But shoppers spend an estimated $62K a year here, so Sulforaphane is a Maybe.

Flapen Score
50
50 / 100
Top 41% of 2,035 Health & Personal Care niches · +2 vs the category median of 48
Market size
£62K/yr47K searches / yr
90-day growth
+20.4%search demand this quarter
Competition
78%top-5 click share · 11 brands · 13 sellers

Flapen Score

Sulforaphane against its category

The dotted line is the Health & Personal Care average. Past it, Sulforaphane is stronger. Inside it, weaker.

50Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Sulforaphane market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Sulforaphane 47K times last year and spent an estimated £62K. The top 5 brands take 78% of clicks. Flapen scores it 50 out of 100, a Maybe.

01 · Demand

An estimated 9.4% of those searches ended in a purchase.

Shoppers searched for this 47K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 9.4% of those searches ended in a purchase. Searches in the last 90 days moved +20.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £62K a year.

Searches, last 12 months
47K
Growth, 90 days vs prior 90
+20.4%
Conversion, latest week
9.4%
Market size, estimated
£62Ka year
Peak month
April1.5× the quietest month
Top search term
sulforaphane28K searches a year

02 · Price

A sale here is worth £14.26.

Listings sell for £14.26 on average, from £8.00 to £21.95. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 250 to 500 of them. At £14.26 that is £4K to £7K a year per listing.

Average price
£14.26under the $15 to $100 sweet spot
Price range
£8.00–£21.95
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
4K–5K
Units per listing a year
250–500
Revenue per listing a year
£4K–£7K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

75% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 7.0% of listings are out of stock. The average listing ranks #1,428 within Diet & Nutrition. It carries 293 reviews at 4.48 stars, so a new listing needs social proof before a better product.

Sponsored listings
75%
Prime listings
100%
Out of stock, average day
7.0%
Average rank
#1,428in Diet & Nutrition
Average rating
4.48 starsAmazon United Kingdom average 4.36 stars
Average reviews
293per listing
Listings tracked
12

04 · Newcomers

0 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 49 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
0Amazon's first-year sales bar
Average brand age
49 months

Products

Top Sulforaphane 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 24, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 78% of clicks. A locked shelf that new listings rarely crack.

£0£6K£12K£19K£25K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 rising

Sellers

13

Est. top-5 brand share

78%

Top 20: 100%

Est. top-5 click share

78%

Top 20: 100%

Open market

17%

  • SMNutrition30%
  • ALPHA0120%
  • Horbäach11%
  • LOVE LIFE SUPPLEMENTS10%
  • Swanson7%
  • ECO-VITS5%
  • Open — no brand owns it (5 brands, 17%)

Demand

Sulforaphane search demand

Weekly searches over the year, seasonality beneath. Pick a range.

2K1KSpike '25Spike '26AprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

No pronounced peak months · busiest ÷ quietest = 1.5×

Search terms

Top Sulforaphane search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • sulforaphane28K/yr
  • broccoli sprout extract9K/yr
  • sulforaphane supplement10K/yr

Reviews and returns

What reviews say buyers love and hate about Sulforaphane

We read the reviews and the return reasons for every product selling here.

13%of positive reviews mention “Quality-Overall”
17%of negative reviews mention “Dosage”
0.1%of orders come back
“They do seem to low dose on the Sulforaphane at about 4mg per capsule”
A buyer, on “Dosage”17% of negative reviews mention the same topic

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.

16 topics

NegativePositive

FAQ

Common Sulforaphane 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