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Hawaiian Spirulina Powder

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 36Growth 43Conversion 95Competition 0Returns 99Price range 95Avg price 95Brand share 0Review moat 22Quality gap 25

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Incredible12.8%

search→purchase rate — share of searches ending in a sale

Avg price

Incredible$23.50

avg listing price — sweet spot $15–$100

Price range

Incredible$17.01–$30.00

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Okay+14.1%

90-day search growth — must beat 0% to launch

Market size

Okay$177K

$177K/yr · 59K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad9,321

avg incumbent reviews — the moat a new listing must climb

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Is hawaiian spirulina powder profitable on Amazon?

According to Flapen's Amazon United States niche tracking, hawaiian spirulina powder is a $177K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 44/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

hawaiian spirulina powder market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
Units sold / yr
5K–6K
avg 750–1,000/product
Revenue / yr
$118K–$141K
units × avg price
Conversion rate
12.8%
Avg BSR
#255
Page quality
0%
Prime
100%
Sponsored
60%
Out of stock
4.4%
Avg brand age
83 months
Avg seller age
165 days

Competition: brands, sellers & click share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

1 falling

Sellers

14

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

0%

  • Nutrex Hawaii100%
  • Open — no brand owns it (0%)

hawaiian spirulina powder demand & seasonality

Weekly Amazon search volume, last 99 weeks — +14.1% search growth over the last 90 days.
2K1KSpike '25Prime Day '25Holiday '25Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Top hawaiian spirulina powder search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • nutrex hawaii spirulina12K/yr
  • hawaiian spirulina15K/yr
  • hawaiian spirulina powder7K/yr
  • pure hawaiian spirulina8K/yr
  • nutrex hawaii pure hawaiian spirulina4K/yr
  • hawaiian spirulina tablets3K/yr
  • spirulina hawaiian3K/yr
  • nutrex hawaii3K/yr
  • hawaiian spirulina powder organic4K/yr
All search terms

Top hawaiian spirulina powder products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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%$35K30%$53K40%$71K1K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 5 tracked products in this niche — three views at once, no toggling.

What reviews say buyers love and hate about hawaiian spirulina powder

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall19%

“Excellent product”

Taste-Overall10%

“Yum, taste just like fish water”

Nutritional Content9%

“Great for everyday food supplement”

Energy Level9%

“Energy Booster”

Smell7%

“Has a very natural smell”

Vitamin5%

“Super supplement”

Magnesium4%

“I really like these till I saw they added some silica and some magnesium, like really”

Advertised Vs Actual Product4%

“Exactly as described, great product”

Natural Ingredients4%

“Pure Hawaiian Bliss”

Color3%

“color are what I have expected with Spirulina tablets”

What buyers complain about

Smell18%

“Very BAD smell”

Quality-Overall8%

“Received a different quality than usual”

Side Effects6%

“Still feeling queasy several hours later”

Value For Money6%

“Kind of disappointing especially for the price”

Dosage6%

“Even is small amounts”

Material Quality6%

“plastic bottle”

Salt Content6%

“Too high in sodium”

Taste-Overall5%

“Obviously spirulina does not taste good by itself”

Ease Of Use4%

“Could not use”

Vegan/Organic3%

“Not 100% natural organic”

Top return reasons

Advertised Vs Actual Product37%
Dosage12%
Value For Money8%
Smell8%
Size-Overall7%
Functionality-Overall4%
Heart Health4%
Nutritional Content3%
Acid Regulator/Stomach Ache Relief2%
Absorbency2%

Common hawaiian spirulina powder questions

Is hawaiian spirulina powder profitable to sell on Amazon United States?
The niche generates $177K/yr across 5 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +14.1%. Flapen's verdict: Skip it (44/100).
How competitive is the hawaiian spirulina powder niche?
1 brands and 14 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in hawaiian spirulina powder?
Top complaints mined from reviews: Smell, Quality-Overall, Side Effects. The return rate is 0.3%.
When does demand for hawaiian spirulina powder peak?
Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the hawaiian spirulina powder niche?
Listings span $17.01–$30.00; the average listing price is $23.50 (sweet spot $15–$100). The average incumbent carries 9,321 reviews — the moat a new listing must climb.