Spirulina
FailPrices span $3.75–$16.73, mostly outside the sweet spot, so Spirulina is a Fail.
- Flapen Score
- 41 / 100Ranks 1,596 of 2,035 Health & Personal Care niches · −7 vs the category median of 4841
- Market size
- £179K/yr204K searches / yr
- 90-day growth
- -19.4%search demand this quarter
- Competition
- 70%top-5 click share · 10 brands · 17 sellers
Flapen Score
Spirulina against its category
The dotted line is the Health & Personal Care average. Past it, Spirulina is stronger. Inside it, weaker.
Market
The Spirulina market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Spirulina 204K times last year and spent an estimated £179K. The top 5 brands take 84% of clicks. Demand peaks in Sep. Flapen scores it 41 out of 100, a Fail.
01 · Demand
An estimated 9.8% of those searches ended in a purchase.
Shoppers searched for this 204K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 9.8% of those searches ended in a purchase. Searches in the last 90 days moved -19.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £179K a year.
- Searches, last 12 months
- 204K
- Growth, 90 days vs prior 90
- -19.4%
- Conversion, latest week
- 9.8%
- Market size, estimated
- £179Ka year
- Peak month
- September2.4× the quietest month
- Top search term
- spirulina140K searches a year
02 · Price
A sale here is worth £8.96.
Listings sell for £8.96 on average, from £3.75 to £16.73. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 750 to 1,000 of them. At £8.96 that is £7K to £9K a year per listing.
- Average price
- £8.96under the $15 to $100 sweet spot
- Price range
- £3.75–£16.73
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- £7K–£9K
- Returns
- 0.1%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads and reviews.
94% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 5.1% of listings are out of stock. The average listing ranks #8 within Herbal Supplements. It carries 1,754 reviews at 4.54 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 94%
- Prime listings
- 100%
- Out of stock, average day
- 5.1%
- Average rank
- #8in Herbal Supplements
- Average rating
- 4.54 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,754per listing
- Listings tracked
- 16
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 64 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 64 months
Products
Top Spirulina products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Organic Spirulina & Chlorella 2000mg - 300 Tablets - Broken Cell Wall - Cold Pressed Pure Supplement with No Additives (75 Day Supply) by Alpha01
- Price
- £7.25
- Rating
- 4.6/5
- Reviews
- 1,208
- Age
- 5y ago

Organic Spirulina 2000mg 300 Vegan Tablets - Cold Pressed with No Additives Resealable and Recyclable Pouch by Alpha01
- Price
- £5.72
- Rating
- 4.6/5
- Reviews
- 467
- Age
- 5y ago

Sevenhills Wholefoods Organic Spirulina Powder 500g | Certified Organic | Nutrient-Dense | 100% Pure & Natural
- Price
- £9.20
- Rating
- 4.5/5
- Reviews
- 6,249
- Age
- 14y ago
![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
- Price
- £10.47
- Rating
- 4.5/5
- Reviews
- 1,014
- Age
- 6y ago

Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality
- Price
- £8.00
- Rating
- 4.6/5
- Reviews
- 528
- Age
- 1y ago
Trending
estimated 90-day click momentum
Naturya Organic Spirulina Powder 100g
- Price
- £4.66
- Rating
- 4.6/5
- Reviews
- 1,797
- Age
- 10y ago

Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality
- Price
- £8.00
- Rating
- 4.6/5
- Reviews
- 528
- Age
- 1y ago

Sevenhills Wholefoods Organic Spirulina Powder 500g | Certified Organic | Nutrient-Dense | 100% Pure & Natural
- Price
- £9.20
- Rating
- 4.5/5
- Reviews
- 6,249
- Age
- 14y ago

Spirulina Tablets | 5000mg per Serving | 1000 Tablets | Organic | Immune Support Booster | MySuperfoods
- Price
- £10.22
- Rating
- 4.6/5
- Reviews
- 3,200
- Age
- 1y ago

Organic Spirulina Powder Capsules 500mg - 120 Vegan Capsules - Organically Grown in the Mongolian Plateau - Non-GMO Made in the UK - G&G Vitamins
- Price
- £7.76
- Rating
- 4.4/5
- Reviews
- 113
- Age
- 9y ago
Newest
by launch date
Organic Spirulina 500 Pure Tablets - 2000mg Serving Cold-Pressed Rich in Vitamins & Minerals for Immunity & Energy by Inner Vitality
- Price
- £8.00
- Rating
- 4.6/5
- Reviews
- 528
- Age
- 1y ago

Spirulina Tablets | 5000mg per Serving | 1000 Tablets | Organic | Immune Support Booster | MySuperfoods
- Price
- £10.22
- Rating
- 4.6/5
- Reviews
- 3,200
- Age
- 1y ago

Organic Chlorella and Spirulina - 2500mg - 300 Tablets - Broken Cell Wall - Pure Formula Supplement with No Additives
- Price
- £9.11
- Rating
- 4.6/5
- Reviews
- 442
- Age
- 1y ago

Organic Spirulina Tablets (360 Tablets) Raw Cold Pressed Spirulina Algae Certified Vegan & Kosher
- Price
- £8.28
- Rating
- 4.3/5
- Reviews
- 63
- Age
- 3y ago

Organic Spirulina 1000x Pure Easy to Swallow Tablets - Rich in Essential Vitamins & Minerals by Inner Vitality
- Price
- £11.48
- Rating
- 4.6/5
- Reviews
- 528
- Age
- 3y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 70% of clicks. A locked shelf that new listings rarely crack.
Brands
10 falling
Sellers
17
Est. top-5 brand share
84%
Top 20: 100%
Est. 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
Spirulina search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep · busiest ÷ quietest = 2.4×
Search terms
Top Spirulina search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- spirulina140K/yr
- spirulina tablets46K/yr
- spirulina capsules10K/yr
- organic spirulina tablets5K/yr
- organic spirulina4K/yr
Reviews and returns
What reviews say buyers love and hate about Spirulina
We read the reviews and the return reasons for every product selling here.
“Unexpected side effects”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Spirulina questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









