spirulina powder
Skip itBrand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great10.1%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,618.8avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay£121K£121K/yr · 139K searches
Avg price
Bad£8.63avg listing price — sweet spot $15–$100
Growth
Bad-23.8%90-day search growth — must beat 0% to launch
Competition
Bad85%top-5 click share — a locked-up shelf
Brand share
Bad95%top-5 brand share — brand-locked demand
Price range
Bad£1.93–£16.73cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, spirulina powder is a £121K/yr Amazon United Kingdom market (139K searches/yr). The top 5 brands hold 95% of demand. Verdict: Skip it — 36/100.
Data updated Jul 25, 2026 · scored weekly · How we score niches
spirulina powder market data
- Units sold / yr
- 15K–20K
- avg 1,500–2,000/product
- Revenue / yr
- £129K–£173K
- units × avg price
- Conversion rate
- 10.1%
- Avg BSR
- #86
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 90%
- Out of stock
- 0.8%
- Avg brand age
- 65 months
- Avg seller age
- 167 days
Competition & brand share
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 falling
Sellers
15
Top-5 brand share
95%
Top 20: 100%
Top-5 click share
85%
Top 20: 100%
Open market
2%
- Sevenhills Wholefoods50%
- ALPHA0132%
- Herbal Magic5%
- Naturya5%
- Inner Vitality3%
- Bulk3%
- Open — no brand owns it (1 brand, 2%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -23.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top spirulina powder search terms
- spirulina powder110K/yr
- spirulina organic powder14K/yr
- organic spirulina powder10K/yr
- spirulina powder 1kg3K/yr
- spirulina powder organic3K/yr
Top spirulina powder 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.
All 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sevenhills Wholefoods Organic Spirulina Powder 500g | Certified Organic | Nutrient-Dense | 100% Pure & Natural
Sevenhills Wholefoods£9.204.5★6,249 rev
Organic Spirulina Powder 1kg 100% Cold Pressed Resealable and Recyclable Pouch by Alpha01
ALPHA01£12.734.5★306 rev
Organic Spirulina Powder 100g 100% Cold Pressed Resealable and Recyclable Pouch By Alpha01
ALPHA01£3.754.5★306 rev
Sevenhills Wholefoods Organic Spirulina Powder 1kg | Certified Organic | Nutrient-Dense | 100% Pure & Natural
Sevenhills Wholefoods£16.734.5★6,249 rev
Herbal Magics Organic Spirulina Powder - Sparkle Your Smoothies Shakes - Ideal for Trainers on a Vegan Vegetarian Diet - No Fillers & Preservatives - of&G UK Organic Certified-100g (Pack of 1)
Herbal Magic£5.884.4★58 rev
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£8.00528 rev
Organic Spirulina Powder 1kg 100% Cold Pressed Resealable and Recyclable Pouch by Alpha01
ALPHA01£12.73306 rev
Organic Spirulina Powder 100g 100% Cold Pressed Resealable and Recyclable Pouch By Alpha01
ALPHA01£3.75306 rev
Organic Blue Spirulina Powder 50g 100% Natural Phycocyanin for Smoothies Vibrant Blue Food Colouring & Ingredient Rich in Protein Resealable and Recyclable Pouch by Alpha01
ALPHA01£9.32377 rev
Herbal Magics Organic Spirulina Powder - Sparkle Your Smoothies Shakes - Ideal for Trainers on a Vegan Vegetarian Diet - No Fillers & Preservatives - of&G UK Organic Certified-100g (Pack of 1)
Herbal Magic£5.8858 rev
Trending
90-day click momentumHerbal Magics Organic Spirulina Powder - Sparkle Your Smoothies Shakes - Ideal for Trainers on a Vegan Vegetarian Diet - No Fillers & Preservatives - of&G UK Organic Certified-100g (Pack of 1)
Herbal Magic£5.884.4★
Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality
Inner Vitality£8.004.6★
Organic Blue Spirulina Powder 50g 100% Natural Phycocyanin for Smoothies Vibrant Blue Food Colouring & Ingredient Rich in Protein Resealable and Recyclable Pouch by Alpha01
ALPHA01£9.324.6★
Naturya Organic Spirulina Powder 100g
Naturya£4.664.6★
Organic Spirulina Powder 1kg 100% Cold Pressed Resealable and Recyclable Pouch by Alpha01
ALPHA01£12.734.5★
What buyers say about spirulina powder
What buyers praise and complain about, mined from review topics.What buyers love
“It feels high quality and natural, and Ive noticed my shrimp are more active during feeding time”
“Reasonable price”
“Taste good”
“Protein supplements”
“Great lovely healthy organic spirulina”
“Works as description bed”
“natural”
“Excellent quality spirulina powder”
“my energy levels have seemingly improved a fair bit”
“if it is mixed with fruit it is excellent”
What buyers complain about
“taste wise it's wildly exaggerated”
“Input it in smoothies which can ruin the colour as its such dark green”
“the flavor from this spirulina seem to cancel each other out”
“Smells a little bit”
“Its pretty horrible on its own in water”
“gave me and my mum palpitations, rapid heart beats, had to get rid of it sadly”
“this product needs a third-party test certificate to prove its safety”
“But they are SO expensive”
“then its lumpy so doesnt really work when trying to swallow”
“No instructions on how to use it”
Common questions
- Is spirulina powder profitable to sell on Amazon United Kingdom?
- The niche generates £121K/yr across 10 tracked products. 90-day search growth is -23.8%. Flapen's verdict: Skip it (36/100).
- How competitive is the spirulina powder niche?
- 7 brands and 15 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 95% of demand.
- What do buyers complain about in spirulina powder?
- Top complaints mined from reviews: Taste-Overall, Color, Flavor. The return rate is 0.1%.
- When does demand for spirulina powder peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the spirulina powder niche?
- Listings span £1.93–£16.73; the average listing price is £8.63 (sweet spot $15–$100). The average incumbent carries 1,619 reviews — the moat a new listing must climb.