Sulforaphane
Sulforaphane shows low returns (0.1%), but a small market ($62K/yr) keeps it on the watch list.
Flapen Score
Is Sulforaphane profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Sulforaphane is a £62K/yr Amazon United Kingdom market (47K searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 50/100.
Sulforaphane: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +20.4% over the last 90 days and 9.4% of searches end in a purchase.
£62K
revenue / yr
Who owns the niche?
The top 5 brands hold 78% of demand, so 22% of the market is open.
22%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 12 products
Top Sulforaphane products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
20MG Sulforaphane | from Broccoli Sprouts & Seed Extract | 565MG Microbeadlet Complex | 26MG of Glucoraphanin + Myrosinase | Complete NRF2 Activator Antioxidant & Cellular Health Supplement | 60 Ct.
- Price
- £21.95
- Rating
- 4.4/5
- Reviews
- 1,723
- Age
- 4y ago

Organic Broccoli Sprout Extract 21 000mg - 90 Vegan Capsules - High Strength 15:1 Brassica Oleracea Supplement Extract - Resealable and Recyclable Pouch - By Alpha01
- Price
- £8.09
- Rating
- 4.4/5
- Reviews
- 145
- Age
- 6y ago

Broccoli Sprout Extract 18 000mg | Activated Sulforaphane Supplement | 60 Vegan Capsules | High Strength | by Horbaach
- Price
- £8.23
- Rating
- 4.4/5
- Reviews
- 197
- Age
- 4y ago

Broccoli Sprout Extract by LLS | Contains Activated Sulforaphane | 60 Capsules | 15 000mg of Whole Plant Equivalent per Serving | Sulforaphane Supplement | Potent Antioxidant Content
- Price
- £19.33
- Rating
- 4.5/5
- Reviews
- 963
- Age
- 12y ago

Swanson Broccoli Sprout Extract with Sulforaphane 60 Vegan Capsules high Strength Vegetarian Soy Free Gluten Free Non-GMO
- Price
- £8.52
- Rating
- 4.5/5
- Reviews
- 158
- Age
- 4y ago
Trending
90-day click momentum
760mg Broccoli Extract 64mg Glucoraphanin Sulforaphane & Myrosinase Full-Spectrum Long-Lasting Antioxidant Properties SanBroc Stomach Acid-Resistant Vegan Supplement (60 Capsules)
- Price
- £19.36
- Rating
- 4.6/5
- Reviews
- 21
- Age
- 4mo ago

ECO-VITS Sulforaphane from Broccoli Sprout Extract 240 Caps (1000mcg) Biodegradable Packaging
- Price
- £21.73
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 5y ago

ECO-VITS Sulforaphane from Broccoli Sprout Extract 60 Capsules 1000mcg Antioxidant & Cellular Support High-Potency Recyclable Packaging Sealed Pouch Suitable for Vegetarian
- Price
- £8.00
- Rating
- 4.6/5
- Reviews
- 11
- Age
- 5y ago

Broccoli Sprout Extract - 100mg Sulforaphane per Serving - Vegan - Antioxidant Supplement - Broccoli Powder Rich in Vitamins and Minerals - 60 Capsules - Made in Germany
- Price
- £18.59
- Rating
- 4.6/5
- Reviews
- 102
- Age
- 5y ago

Broccoli Sprout Extract 15 000mg - 7500mcg Sulphoraphane 60 Vegan Capsules
- Price
- £8.12
- Rating
- 4.2/5
- Reviews
- 24
- Age
- 1y ago
Newest
by launch date
760mg Broccoli Extract 64mg Glucoraphanin Sulforaphane & Myrosinase Full-Spectrum Long-Lasting Antioxidant Properties SanBroc Stomach Acid-Resistant Vegan Supplement (60 Capsules)
- Price
- £19.36
- Rating
- 4.6/5
- Reviews
- 21
- Age
- 4mo ago

Broccoli Sprout Extract 15 000mg - 7500mcg Sulphoraphane 60 Vegan Capsules
- Price
- £8.12
- Rating
- 4.2/5
- Reviews
- 24
- Age
- 1y ago

Youthful Roots Sulforaphane Supplement Gummies | Broccoli Sprout Extract with 34.5mg Glucoraphanin Antioxidant Multivitamin A to K Zinc | 90 Gummies with Strawberry Flavour | Immune & Mood Support
- Price
- £16.27
- Rating
- 4.6/5
- Reviews
- 26
- Age
- 1y ago

450MG Liposomal Sulforaphane Activated Sulforaphane Supplement from Broccoli Sprouts Seed Extract Plus Myrosinase Cellular Level 60 Count (Pack of 1)
- Price
- £12.99
- Rating
- 4.2/5
- Reviews
- 139
- Age
- 2y ago

Swanson Broccoli Sprout Extract with Sulforaphane 60 Vegan Capsules high Strength Vegetarian Soy Free Gluten Free Non-GMO
- Price
- £8.52
- Rating
- 4.5/5
- Reviews
- 158
- Age
- 4y ago
Competition: brands, sellers & click share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.
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%)
Sulforaphane demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.5×
Top Sulforaphane search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- sulforaphane28K/yr
- broccoli sprout extract9K/yr
- sulforaphane supplement10K/yr
What reviews say buyers love and hate about Sulforaphane
What buyers mention most, as a share of all reviews.
What buyers love
66% of reviews“Amazing product, great seller”
“Good supplement for daily wellness”
“the ingredients are clean”
“Good for digestion”
“The capsules are easy to take”
What buyers complain about
68% of reviews“They do seem to low dose on the Sulforaphane at about 4mg per capsule”
“They are on the more expensive side of things”
“Strong smell and quite expensive”
“MISLEADING HEADLINE”
“poor quality vessel”
Common Sulforaphane questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









