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Spirulina

Fail

Prices span $3.75–$16.73, mostly outside the sweet spot, so Spirulina is a Fail.

Flapen Score
41
41 / 100
Ranks 1,596 of 2,035 Health & Personal Care niches · −7 vs the category median of 48
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.

41Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

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

9.8% of searches ended in a purchase last week.

Shoppers searched for this 204K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 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

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 70% of clicks. A locked shelf that new listings rarely crack.

£0£18K£36K£54K£72K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

Spirulina search demand

Weekly searches over the year, seasonality beneath. Pick a range.

7K5KSpike '24Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep · busiest ÷ quietest = 2.4×

Search terms

Top Spirulina search terms shoppers use

The exact words shoppers type, with 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

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Side Effects13%−0.12

Unexpected side effects

Experienced unpleasant side effect

Horrible side effects

Taste-Overall10%−0.04

taste wise it's wildly exaggerated

has a weird taste in water

Tastes awful

Quality-Overall8%+2.24

Quality

Ordinary

Size-Overall5%−0.02

SURELY NOT FIT FOT HUMAN

This batch are larger in size

Functionality-Overall4%−0.03

They obviously dont work for me

Not seen any results

Love

Quality-Overall35%+2.24

Good well produced product

Reliable product

Good Quality

Value For Money12%+0.78

Reasonable price

Great value

Great value

Nutritional Content7%+0.27

Protein supplements

Good Supplement

Good in protein shakes

Vegan/Organic6%+0.10

This is a good organic chlorella and spirulina supplement

Organic tablets

Being organic even better, highly recommended

Advertised Vs Actual Product4%+0.16

does the job

As described

The product does what it says

FAQ

Common Spirulina questions

Answered from the same tracked data.