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54

irish sea moss

Worth a look

Shows low returns (0.1%), but a small market ($21K/yr) keeps it on the watch list.

Market size 5Growth 17Conversion 57Competition 74Returns 100Price range 47Avg price 49Brand share 87Review moat 80Quality gap 68

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Brand share

Great48%

top-5 brand share — no brand owns this niche

Review moat

Great404.69

avg incumbent reviews — the moat a new listing must climb

Competition

Good40%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good4.8%

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

Avg price

Okay£11.92

avg listing price — sweet spot $15–$100

Price range

Okay£3.14–£25.42

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

Growth

Bad-16.1%

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

Market size

Bad£21K

£21K/yr · 37K searches

According to Flapen's Amazon United Kingdom niche tracking, irish sea moss is a £21K/yr Amazon United Kingdom market (37K searches/yr). The top 5 brands hold 48% of demand. Verdict: Worth a look — 54/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

irish sea moss market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
£24K–£30K
units × avg price
Conversion rate
4.8%
Avg BSR
#740
Page quality
0%
Prime
82%
Sponsored
85%
Out of stock
14.7%
Avg brand age
44 months
Avg seller age
169 days

Competition & brand share

The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.

Brands

30 rising

Sellers

40

Top-5 brand share

48%

Top 20: 92%

Top-5 click share

40%

Top 20: 83%

Open market

47%

  • MetaSuperfoods11%
  • YAYAH Products10%
  • Nutri-things10%
  • BUIE9%
  • SS Sport Supplies8%
  • NEW LEAF PRODUCTS5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.1% search growth over the last 90 days.
2K1KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Top irish sea moss search terms

  • irish sea moss22K/yr
  • irish moss7K/yr
  • sea moss raw6K/yr
  • irish moss organic2K/yr
All search terms

Top irish sea moss 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%3%£6416%£1K9%£2K12%£3K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about irish sea moss

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

What buyers love

Quality-Overall28%

“Great quality and easy to add to my routine”

Value For Money11%

“Good price”

Advertised Vs Actual Product6%

“Does the job”

Ease Of Use5%

“easy to use”

Energy Level4%

“more energy”

Sleep Quality3%

“Sleeping better”

Taste-Overall3%

“The gel tastes fresh with a very mild taste so its easy to take daily”

Efficiency2%

“Works well”

Ease Of Chewing/Swallowing2%

“Easy to swallow”

Dosage2%

“The dosage is decent compared to similar products”

What buyers complain about

Taste-Overall22%

“tasted almost chemical”

Value For Money16%

“A bit overpriced for the amount received in the package”

Quality-Overall13%

“This is not a cheap product”

Functionality-Overall5%

“No effect”

Size-Overall4%

“Large capsules”

Plant Growth3%

“Let down moss didnt grow”

Side Effects3%

“But I felt no difference at all after taking as prescribed”

Dosage3%

“Highly disappointed with this as I struggle to take tablets”

Dilute/Watery2%

“Smelt really horrible”

Acid Regulator/Stomach Ache Relief2%

“made my stomach cramp badly”

Top return reasons

Smell19%
Age Suitability13%
Ingredients-Overall13%
Strength13%
Functionality-Overall13%
Material Quality13%
Advertised Vs Actual Product13%
Stain Resistance6%

Common questions

Is irish sea moss profitable to sell on Amazon United Kingdom?
The niche generates £21K/yr across 39 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Worth a look (54/100).
How competitive is the irish sea moss niche?
30 brands and 40 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 48% of demand.
What do buyers complain about in irish sea moss?
Top complaints mined from reviews: Taste-Overall, Value For Money, Quality-Overall. The return rate is 0.1%.
When does demand for irish sea moss peak?
Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the irish sea moss niche?
Listings span £3.14–£25.42; the average listing price is £11.92 (sweet spot $15–$100). The average incumbent carries 405 reviews — the moat a new listing must climb.