---
title: "Spirulina — £179K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/spirulina"
last_updated: "2026-07-31T11:33:25.805Z"
locale: en
meta:
description: "Niche score 41/100 · £179K/yr market · 204K searches/yr · £8.96 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · £179K/yr market · 204K searches/yr · £8.96 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Spirulina — £179K/yr Amazon UK Niche (2026) - Flapen"
---
# **spirulina**
**Skip it**
Prices mostly outside the sweet spot ($3.75–$16.73) — this niche doesn't clear our bar today.
Market size 36Growth 15Conversion 86Competition 25Returns 100Price range 13Avg price 25Brand share 34Review moat 47Quality gap 35
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****1,753.94**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****£179K**
£179K/yr · 204K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****70%**
top-5 click share — a locked-up shelf
**Avg price**
**Okay****£8.96**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-19.4%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****£3.75–£16.73**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, spirulina is a £179K/yr Amazon United Kingdom market (204K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Sep. Verdict: Skip it — 41/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spirulina market data**
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **£134K–£179K**
- units × avg price
- **Conversion rate**
- **9.8%**
- **Avg BSR**
- **#8**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **94%**
- **Out of stock**
- **5.1%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**17**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**10%**
- ALPHA0141% - Sevenhills Wholefoods20% - Inner Vitality9% - Spring Blossom8% - SS Sport Supplies6% - WeightWorld6% - Open — no brand owns it (4 brands, 10%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -19.4% search growth over the last 90 days.
7K5KSpike '24Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 2.4×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/spirulina/trend)
## **Top spirulina search terms**
- **spirulina**140K/yr-18.0%6.5% conv. - **spirulina tablets**46K/yr-19.9%8.7% conv. - **spirulina capsules**10K/yr-38.0%6.6% conv. - **organic spirulina tablets**5K/yr-19.3%11.3% conv. - **organic spirulina**4K/yr-16.6%6.9% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/spirulina/search-terms)
## **Top spirulina 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%£18K20%£36K30%£54K40%£72K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Organic Spirulina & Chlorella 2000mg - 300 Tablets - Broken Cell Wall - Cold Pressed Pure Supplement with No Additives (75 Day Supply) by Alpha01**ALPHA01**£7.25**4.6★1,208 rev](https://www.amazon.co.uk/dp/B09153XCCN) [2**Organic Spirulina 2000mg 300 Vegan Tablets - Cold Pressed with No Additives Resealable and Recyclable Pouch by Alpha01**ALPHA01**£5.72**4.6★467 rev](https://www.amazon.co.uk/dp/B097YWGGTG) [3**Sevenhills Wholefoods Organic Spirulina Powder 500g | Certified Organic | Nutrient-Dense | 100% Pure & Natural**Sevenhills Wholefoods**£9.20**4.5★6,249 rev](https://www.amazon.co.uk/dp/B0065VDO4C) [4![500G Organic SPIRULINA Tablets [1000 x 500mg] Natural Dietary Food Supplement Premium Quality Non-GMO Vegan Detox Superfood Rich in Protein Vitamins Amino Acids Iron - Soil Association Certified](https://m.media-amazon.com/images/I/41tGSrwNwCL.jpg)**500G Organic SPIRULINA Tablets \[1000 x 500mg\] Natural Dietary Food Supplement Premium Quality Non-GMO Vegan Detox Superfood Rich in Protein Vitamins Amino Acids Iron - Soil Association Certified**Spring Blossom**£10.47**4.5★1,014 rev](https://www.amazon.co.uk/dp/B07X8S4WDS) [5**Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality**Inner Vitality**£8.00**4.6★528 rev](https://www.amazon.co.uk/dp/B0DZGLLVH2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality**Inner Vitality**£8.00**528 rev1y ago](https://www.amazon.co.uk/dp/B0DZGLLVH2) [**Spirulina Tablets | 5000mg per Serving | 1000 Tablets | Organic | Immune Support Booster | MySuperfoods**MySuperfoods**£10.22**3,200 rev1y ago](https://www.amazon.co.uk/dp/B0DVC7V5MH) [**Organic Chlorella and Spirulina - 2500mg - 300 Tablets - Broken Cell Wall - Pure Formula Supplement with No Additives**SS Sport Supplies**£9.11**442 rev1y ago](https://www.amazon.co.uk/dp/B0DMPCTX3D) [**Organic Spirulina Tablets (360 Tablets) Raw Cold Pressed Spirulina Algae Certified Vegan & Kosher**Everyday Superfood**£8.28**63 rev3y ago](https://www.amazon.co.uk/dp/B0C5Q6N8CB) [**Organic Spirulina 1000x Pure Easy to Swallow Tablets - Rich in Essential Vitamins & Minerals by Inner Vitality**Inner Vitality**£11.48**528 rev3y ago](https://www.amazon.co.uk/dp/B0BN2299BN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Naturya Organic Spirulina Powder 100g**Naturya**£4.66**4.6★**▲ 75%**](https://www.amazon.co.uk/dp/B01DSZYAWC) [**Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality**Inner Vitality**£8.00**4.6★**▲ 73%**](https://www.amazon.co.uk/dp/B0DZGLLVH2) [**Sevenhills Wholefoods Organic Spirulina Powder 500g | Certified Organic | Nutrient-Dense | 100% Pure & Natural**Sevenhills Wholefoods**£9.20**4.5★**▲ 38%**](https://www.amazon.co.uk/dp/B0065VDO4C) [**Spirulina Tablets | 5000mg per Serving | 1000 Tablets | Organic | Immune Support Booster | MySuperfoods**MySuperfoods**£10.22**4.6★**▲ 29%**](https://www.amazon.co.uk/dp/B0DVC7V5MH) [**Organic Spirulina Powder Capsules 500mg - 120 Vegan Capsules - Organically Grown in the Mongolian Plateau - Non-GMO Made in the UK - G&G Vitamins**G&G Vitamins**£7.76**4.4★**▲ 13%**](https://www.amazon.co.uk/dp/B01MSX4YS4)
**~~View all trending →~~**
## **What buyers say about spirulina**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**35%
*“Good well produced product”*
**Value For Money**12%
*“Reasonable price”*
**Nutritional Content**7%
*“Protein supplements”*
**Vegan/Organic**6%
*“This is a good organic chlorella and spirulina supplement”*
**Advertised Vs Actual Product**4%
*“does the job”*
**Ease Of Chewing/Swallowing**3%
*“Palatable and easy on stomach”*
**Energy Level**3%
*“Ive also noticed more balanced energy levels overall”*
**Ease Of Use**2%
*“Is it easy to use”*
**Natural Ingredients**2%
*“Its a natural herb. algi that we dont have in our diets anymore”*
**Immunity Booster**2%
*“Excellent anti-viral”*
### **What buyers complain about **
**Side Effects**13%
*“Unexpected side effects”*
**Taste-Overall**10%
*“taste wise it's wildly exaggerated”*
**Quality-Overall**8%
*“Quality”*
**Size-Overall**5%
*“SURELY NOT FIT FOT HUMAN”*
**Functionality-Overall**4%
*“They obviously dont work for me”*
**Regulates Digestion**4%
*“I used to have some digestive problems”*
**Nutritional Content**3%
*“I don't really care how much nutrients is in this stuff”*
**Dilute/Watery**2%
*“Its pretty horrible on its own in water”*
**Dosage**2%
*“My only concern is the dosage at 5 capsules daily”*
**Smell**2%
*“The tablets have an earthy odour”*
## **Common questions**
- **Is spirulina profitable to sell on Amazon United Kingdom?**
- The niche generates £179K/yr across 16 tracked products. 90-day search growth is -19.4%. Flapen's verdict: Skip it (41/100).
- **How competitive is the spirulina niche?**
- 10 brands and 17 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in spirulina?**
- Top complaints mined from reviews: Side Effects, Taste-Overall, Quality-Overall. The return rate is 0.1%.
- **When does demand for spirulina peak?**
- Demand peaks in Sep; the busiest month runs 2.4× the quietest.
- **What does it cost to enter the spirulina niche?**
- Listings span £3.75–£16.73; the average listing price is £8.96 (sweet spot $15–$100). The average incumbent carries 1,754 reviews — the moat a new listing must climb.
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