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Sulforaphane

Maybe

Returns run at only 0.1% of orders. But shoppers spend only $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

9.4% of searches ended in a purchase last week.

Shoppers searched for this 47K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 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

Amazon counts 0 of last year's 1 launches as successful.

1 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. 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

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 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

Top-5 brand share

78%

Top 20: 100%

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 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

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Dosage17%−0.24

They do seem to low dose on the Sulforaphane at about 4mg per capsule

Low dose sulphurophane

No improvement on taking

Value For Money10%+0.15

They are on the more expensive side of things

Expensive

Not the cheapest

Smell9%−0.05

Strong smell and quite expensive

so often you get supplements that don't actually smell or taste of what they allege to be

there is a very noticeable smell as soon as you remove the lid - strongly reminiscent of cooked broccoli

Advertised Vs Actual Product9%−0.08

MISLEADING HEADLINE

Misleading title vs label

Quality-Overall8%+0.39

poor quality vessel

Love

Quality-Overall13%+0.39

Amazing product, great seller

the price is fair for the quality

Excellent product

Vitamin9%+1.17

Good supplement for daily wellness

based on my experience this has been a useful supplement that I would be happy to continue with

A good supplement I think

Ingredients-Overall8%+0.49

the ingredients are clean

The ingredient strength looks solid

The ingredients are clearly listed, and the product feels fresh and well-manufactured

Regulates Digestion8%−0.01

Good for digestion

I have not experienced any irritation or reflux

Improve gut health

Ease Of Chewing/Swallowing7%+0.28

The capsules are easy to take

The capsules are easy to swallow

I found them easy to swallow with either water or a cup of tea

FAQ

Common Sulforaphane questions

Answered from the same tracked data.