sea moss
Worth a lookShows low returns (0.1%), but soft demand (-45.3% this quarter) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Review moat
Good500.81avg incumbent reviews — the moat a new listing must climb
Conversion
Good6.1%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Good72%top-5 brand share — brands hold most of the demand
Competition
Good54%top-5 click share — leaders hold, buyers still browse
Price range
Good£5.80–£24.73cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£11.41avg listing price — sweet spot $15–$100
Market size
Okay£215K£215K/yr · 311K searches
Growth
Bad-45.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, sea moss is a £215K/yr Amazon United Kingdom market (311K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Worth a look — 51/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
sea moss market data
- Units sold / yr
- 15K–20K
- avg 500–750/product
- Revenue / yr
- £171K–£228K
- units × avg price
- Conversion rate
- 6.1%
- Avg BSR
- #535
- Page quality
- 0%
- Prime
- 81%
- Sponsored
- 89%
- Out of stock
- 10.4%
- Avg brand age
- 32 months
- Avg seller age
- 159 days
Competition & brand share
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.Brands
21 flat
Sellers
23
Top-5 brand share
72%
Top 20: 99%
Top-5 click share
54%
Top 20: 92%
Open market
23%
- NEW LEAF PRODUCTS34%
- MYLAS MOSS14%
- Gordon Watkins13%
- St Lucia Sea Moss Ltd6%
- SS Sport Supplies6%
- MetaSuperfoods4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -45.3% search growth over the last 90 days.Peak months: Aug, Sep, Oct · busiest ÷ quietest = 2.7×
Top sea moss search terms
- sea moss232K/yr
- seamoss46K/yr
- sea moss capsules8K/yr
- organic sea moss8K/yr
- sea moss organic8K/yr
- sea moss tablets6K/yr
- see moss3K/yr
Top 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Sea Moss Tablets Extract High Strength 4000mg - Sea Moss Supplement 120 Tablets (not sea Moss Capsule) High Potency - UK Made - Vegan - Non GMO
NEW LEAF PRODUCTS£8.084.3★2,211 rev
Sea Moss Gel Made with Wildcrafted Irish Sea Moss from Grenada. Vegan. Dr Sebi Approved. (Golden 500ml)
Gordon Watkins£13.934.2★2,597 rev
Mylas Moss Organic Sea Moss Gel 340g Wildcrafted & Made in The UK Pure Irish Moss for Immunity Gut Health & Skin Vegan Non-GMO No Fillers
MYLAS MOSS£14.974.0★121 rev
Shilajit Seamoss and Lions Mane Capsules 6000mg - High Strength Complex - 60% Fulvic Acid Shilajit Irish Sea Moss Lions Mane 100% Fruiting Body - Vegan UK Made 120 Capsules
NEW LEAF PRODUCTS£8.424.4★1,194 rev
St Lucia Sea Moss Gel Wildcrafted Caribbean Sea Moss - 100% Natural Vegan Superfood - No Additives & Preservatives - Gluten-Free Non-GMO - Rich in 92 Minerals for Energy & Skin Health - 350ml
St Lucia Sea Moss Ltd£12.354.2★47 rev
Newest
by launch dateSt Lucia Sea Moss Gel Wildcrafted Caribbean Sea Moss - 100% Natural Vegan Superfood - No Additives & Preservatives - Gluten-Free Non-GMO - Rich in 92 Minerals for Energy & Skin Health - 350ml
St Lucia Sea Moss Ltd£12.3547 rev
Himalayan Shilajit Irish Sea Moss & Lions Mane Capsules | 3-in-1 High Strength Blend for Energy Focus & Vitality | 20 000mg 60% Fulvic Acid | Vegan 120 Capsules | Lux Vita
Lux Vita£12.4472 rev
Golden Irish Sea Moss | Wildcrafted from St. Lucia | 55g Makes ~0.85L Sea Moss Gel | 100% Natural Raw & Sun-Dried | Dr. Sebi Inspired Nutrient-Rich Irish Moss for Health & Wellness
BUIE£10.03466 rev
Sea Moss and Bladderwrack - 4000mg - 60 Capsules - Vegan Friendly - Wild Harvested Irish Seamoss - UK Made MOBU
MOBU£5.8039 rev
Shilajit Seamoss and Lions Mane Capsules 6000mg - High Strength Complex - 60% Fulvic Acid Shilajit Irish Sea Moss Lions Mane 100% Fruiting Body - Vegan UK Made 120 Capsules
NEW LEAF PRODUCTS£8.421,194 rev
Trending
90-day click momentumHimalayan Shilajit Irish Sea Moss & Lions Mane Capsules | 3-in-1 High Strength Blend for Energy Focus & Vitality | 20 000mg 60% Fulvic Acid | Vegan 120 Capsules | Lux Vita
Lux Vita£12.444.6★
Golden Irish Sea Moss | Wildcrafted from St. Lucia | 55g Makes ~0.85L Sea Moss Gel | 100% Natural Raw & Sun-Dried | Dr. Sebi Inspired Nutrient-Rich Irish Moss for Health & Wellness
BUIE£10.034.4★
Mylas Moss Organic Sea Moss Gel Wildcrafted & Made in The UK Pure Irish Moss for Immunity Gut Health & Skin Vegan Non-GMO No Fillers (720g)
MYLAS MOSS£24.734.0★
St Lucia Sea Moss Gel Wildcrafted Caribbean Sea Moss - 100% Natural Vegan Superfood - No Additives & Preservatives - Gluten-Free Non-GMO - Rich in 92 Minerals for Energy & Skin Health - 350ml
St Lucia Sea Moss Ltd£12.354.2★
Nutravita 5000mg Sea Moss Tablets - 400 Irish Sea Moss Vegan Supplements for 6.5 Months of Supply Contributes to Normal Energy-Yielding Metabolism Skin & Cognitive Function (EFSA) Made in the UK
Nutravita£12.654.6★
What buyers say about sea moss
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality and easy to add to my routine”
“Good price”
“easy to use”
“As advertised, they work for me”
“The gel tastes fresh with a very mild taste so its easy to take daily”
“i have noticed a boost in my energy level”
“Easy to swallow”
“pretty good value for money at that dosage”
“No side effects”
“Works well”
What buyers complain about
“tasted almost chemical”
“Highly disappointed with this as I struggle to take tablets”
“Waste of money”
“not the best”
“Absolutely no difference whatsoever”
“wondering why I was so dehydrated”
“I hate taking any kind of capsule, tablet etc, so although these are quite big they are really easy to swallow and they dont have that awful aftertaste that capsules of this type normally do”
“get ill a lot”
“made my stomach cramp badly”
“Large capsules”
Top return reasons
Common questions
- Is sea moss profitable to sell on Amazon United Kingdom?
- The niche generates £215K/yr across 27 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -45.3%. Flapen's verdict: Worth a look (51/100).
- How competitive is the sea moss niche?
- 21 brands and 23 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 72% of demand.
- What do buyers complain about in sea moss?
- Top complaints mined from reviews: Taste-Overall, Dosage, Value For Money. The return rate is 0.1%.
- When does demand for sea moss peak?
- Demand peaks in Aug–Sep–Oct; the busiest month runs 2.7× the quietest.
- What does it cost to enter the sea moss niche?
- Listings span £5.80–£24.73; the average listing price is £11.41 (sweet spot $15–$100). The average incumbent carries 501 reviews — the moat a new listing must climb.