---
title: "Sulforaphane — £62K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/sulforaphane"
last_updated: "2026-07-31T11:37:07.957Z"
locale: en
meta:
description: "Niche score 50/100 · £62K/yr market · 47K searches/yr · £14.26 avg price. A small market ($62K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · £62K/yr market · 47K searches/yr · £14.26 avg price. A small market ($62K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Sulforaphane — £62K/yr Amazon UK Niche (2026) - Flapen"
---
# **sulforaphane**
**Worth a look**
Shows low returns (0.1%), but a small market ($62K/yr) keeps it on the watch list.
Market size 16Growth 50Conversion 85Competition 18Returns 100Price range 50Avg price 69Brand share 45Review moat 85Quality gap 45
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.4%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****293.08**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****£14.26**
avg listing price — sweet spot $15–$100
**Growth**
**Good****+20.4%**
90-day search growth — must beat 0% to launch
**Price range**
**Good****£8.00–£21.95**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****78%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****£62K**
£62K/yr · 47K searches
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.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sulforaphane market data**
- **Units sold / yr**
- **4K–5K**
- avg 250–500/product
- **Revenue / yr**
- **£57K–£71K**
- units × avg price
- **Conversion rate**
- **9.4%**
- **Avg BSR**
- **#1,428**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **7.0%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **187 days**
## **Competition & brand 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%)
## **Demand & seasonality**
Weekly Amazon search volume, last 70 weeks — +20.4% search growth over the last 90 days.
2K1KSpike '25Spike '26 seasonAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/sulforaphane/trend)
## **Top sulforaphane search terms**
- **sulforaphane**28K/yr+11.5%7.9% conv. - **broccoli sprout extract**9K/yr+74.3%11.1% conv. - **sulforaphane supplement**10K/yr+5.6%7.7% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/sulforaphane/search-terms)
## **Top sulforaphane 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.
0%10%£6K20%£12K30%£19K40%£25K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**20MG Sulforaphane | from Broccoli Sprouts & Seed Extract | 565MG Microbeadlet Complex | 26MG of Glucoraphanin + Myrosinase | Complete NRF2 Activator Antioxidant & Cellular Health Supplement | 60 Ct.**SMNutrition**£21.95**4.4★1,723 rev](https://www.amazon.co.uk/dp/B07QW9VLSZ) [2**Organic Broccoli Sprout Extract 21 000mg - 90 Vegan Capsules - High Strength 15:1 Brassica Oleracea Supplement Extract - Resealable and Recyclable Pouch - By Alpha01**ALPHA01**£8.09**4.4★145 rev](https://www.amazon.co.uk/dp/B0CTKWLFNF) [3**Broccoli Sprout Extract 18 000mg | Activated Sulforaphane Supplement | 60 Vegan Capsules | High Strength | by Horbaach**Horbäach**£8.23**4.4★197 rev](https://www.amazon.co.uk/dp/B09C8P4ZNV) [4**Broccoli Sprout Extract by LLS | Contains Activated Sulforaphane | 60 Capsules | 15 000mg of Whole Plant Equivalent per Serving | Sulforaphane Supplement | Potent Antioxidant Content**LOVE LIFE SUPPLEMENTS**£19.33**4.5★963 rev](https://www.amazon.co.uk/dp/B00JGX9Q8E) [5**Swanson Broccoli Sprout Extract with Sulforaphane 60 Vegan Capsules high Strength Vegetarian Soy Free Gluten Free Non-GMO**Swanson**£8.52**4.5★158 rev](https://www.amazon.co.uk/dp/B09YY9W6ZG)
**~~View all top sellers →~~**
### **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)**Time Health**£19.36**21 rev4mo ago](https://www.amazon.co.uk/dp/B07V2DNSP1) [**Broccoli Sprout Extract 15 000mg - 7500mcg Sulphoraphane 60 Vegan Capsules**Health4All**£8.12**24 rev1y ago](https://www.amazon.co.uk/dp/B0FB98RMS4) [**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**Youthful Roots**£16.27**26 rev1y ago](https://www.amazon.co.uk/dp/B0DZVWKK1Q) [**450MG Liposomal Sulforaphane Activated Sulforaphane Supplement from Broccoli Sprouts Seed Extract Plus Myrosinase Cellular Level 60 Count (Pack of 1)**Lumarejebo**£12.99**139 rev2y ago](https://www.amazon.co.uk/dp/B0CNXHK8JT) [**Swanson Broccoli Sprout Extract with Sulforaphane 60 Vegan Capsules high Strength Vegetarian Soy Free Gluten Free Non-GMO**Swanson**£8.52**158 rev4y ago](https://www.amazon.co.uk/dp/B09YY9W6ZG)
**~~View all new products →~~**
### **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)**Time Health**£19.36**4.6★**▲ 233%**](https://www.amazon.co.uk/dp/B07V2DNSP1) [**ECO-VITS Sulforaphane from Broccoli Sprout Extract 240 Caps (1000mcg) Biodegradable Packaging**ECO-VITS**£21.73**4.8★**▲ 43%**](https://www.amazon.co.uk/dp/B08FYWS2HK) [**ECO-VITS Sulforaphane from Broccoli Sprout Extract 60 Capsules 1000mcg Antioxidant & Cellular Support High-Potency Recyclable Packaging Sealed Pouch Suitable for Vegetarian**ECO-VITS**£8.00**4.6★**▲ 42%**](https://www.amazon.co.uk/dp/B08FYZ7HTP) [**Broccoli Sprout Extract - 100mg Sulforaphane per Serving - Vegan - Antioxidant Supplement - Broccoli Powder Rich in Vitamins and Minerals - 60 Capsules - Made in Germany**CLAV**£18.59**4.6★**▲ 41%**](https://www.amazon.co.uk/dp/B08LL7RKXJ) [**Broccoli Sprout Extract 15 000mg - 7500mcg Sulphoraphane 60 Vegan Capsules**Health4All**£8.12**4.2★**▲ 22%**](https://www.amazon.co.uk/dp/B0FB98RMS4)
**~~View all trending →~~**
## **What buyers say about sulforaphane**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**13%
*“Amazing product, great seller”*
**Vitamin**9%
*“Good supplement for daily wellness”*
**Ingredients-Overall**8%
*“the ingredients are clean”*
**Regulates Digestion**8%
*“Good for digestion”*
**Ease Of Chewing/Swallowing**7%
*“The capsules are easy to take”*
**Ease Of Use**7%
*“Easy to use”*
**Nutritional Content**5%
*“I was looking for something convenient to help support my overall nutrition”*
**Vegan/Organic**4%
*“A vegan friendly supplement”*
**Advertised Vs Actual Product**3%
*“as described”*
**Efficiency**3%
*“Works well”*
### **What buyers complain about **
**Dosage**17%
*“They do seem to low dose on the Sulforaphane at about 4mg per capsule”*
**Value For Money**10%
*“They are on the more expensive side of things”*
**Smell**9%
*“Strong smell and quite expensive”*
**Advertised Vs Actual Product**9%
*“MISLEADING HEADLINE”*
**Quality-Overall**8%
*“poor quality vessel”*
**Regulates Digestion**8%
*“Had digestive issues with this so I did regret buying it”*
**Breathability**2%
*“This product game me the most horrendous bloating”*
**Vitamin**2%
*“All supplements vary”*
**Side Effects**2%
*“Shame I'm not able to stand another day of tgis to feel other benefits”*
**Acid Regulator/Stomach Ache Relief**2%
*“Caused terrible bloating and wind”*
## **Common questions**
- **Is sulforaphane profitable to sell on Amazon United Kingdom?**
- The niche generates £62K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +20.4%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the sulforaphane niche?**
- 11 brands and 13 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 78% of demand.
- **What do buyers complain about in sulforaphane?**
- Top complaints mined from reviews: Dosage, Value For Money, Smell. The return rate is 0.1%.
- **When does demand for sulforaphane peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the sulforaphane niche?**
- Listings span £8.00–£21.95; the average listing price is £14.26 (sweet spot $15–$100). The average incumbent carries 293 reviews — the moat a new listing must climb.
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