---
title: "Sea Moss Capsule — £23K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/sea-moss-capsule"
last_updated: "2026-07-31T19:38:04.930Z"
locale: en
meta:
description: "Niche score 46/100 · £23K/yr market · 21K searches/yr · £9.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · £23K/yr market · 21K searches/yr · £9.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sea Moss Capsule — £23K/yr Amazon UK Niche (2026) - Flapen"
---
# **sea moss capsule**
**Skip it**
A small market ($23K/yr) — this niche doesn't clear our bar today.
Market size 6Growth 9Conversion 92Competition 47Returns 100Price range 26Avg price 30Brand share 64Review moat 76Quality gap 50
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.3%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****489.23**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Okay****£9.64**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£4.23–£18.69**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-31.4%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£23K**
£23K/yr · 21K searches
According to Flapen's Amazon United Kingdom niche tracking, sea moss capsule is a £23K/yr Amazon United Kingdom market (21K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Sep–Oct–Nov–Dec. Verdict: Skip it — 46/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sea moss capsule market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **£14K–£19K**
- units × avg price
- **Conversion rate**
- **11.3%**
- **Avg BSR**
- **#1,151**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **81%**
- **Out of stock**
- **14.8%**
- **Avg brand age**
- **31 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **▲rising
**Sellers**
**24**
**Top-5 brand share**
**67%**
Top 20: 99%
**Top-5 click share**
**57%**
Top 20: 93%
**Open market**
**30%**
- NEW LEAF PRODUCTS39% - SS Sport Supplies13% - ALPHA015% - MetaSuperfoods4% - KIKI HEALTH4% - PH PROWISE Healthcare4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -31.4% search growth over the last 90 days.
23K18KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 24.6×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/sea-moss-capsule/trend)
## **Top sea moss capsule search terms**
- **sea moss capsules**8K/yr-31.4%7.7% conv. - **irish sea moss capsules**4K/yr-18.7%9.0% conv. - **sea moss tablets**6K/yr-36.8%9.4% conv. - **sea moss supplements**2K/yr-44.1%1.4% conv. - **sea moss capsule**2K/yr-29.1%1.9% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/sea-moss-capsule/search-terms)
## **Top sea moss capsule 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%5%£1K10%£2K15%£3K20%£5K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Sea Moss Complex - Pure Irish Sea Moss Capsules with Bladderwrack & KSM Ashwagandha - High Strength Seamoss Capsule - 120 Fill Vegan Irish Seamoss Capsules Made in The UK By New Leaf**NEW LEAF PRODUCTS**£7.35**4.4★273 rev](https://www.amazon.co.uk/dp/B0DBZKJ81Q) [2**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**£8.08**4.3★2,211 rev](https://www.amazon.co.uk/dp/B0BLM3S756) [3**Sea Moss Complex 14 000mg Extract Including Bladderwrack & Burdock Root - 120 High Strength Capsules Providing 120 Day Supply - North Atlantic Irish Sea Moss Supplement - Vegan & UK Made**SS Sport Supplies**£8.22**4.5★681 rev](https://www.amazon.co.uk/dp/B0DDKY2BSG) [4**Organic Irish Sea Moss Extract 15 000mg - High Strength 25:1 Extract - 90 Vegan Capsules - Resealable and Recyclable Pouch by Alpha01**ALPHA01**£7.58**4.5★27 rev](https://www.amazon.co.uk/dp/B0DHQYH8Y7) [5**KIKI Health Organic Irish Sea Moss Capsules | Sustainably Sourced Rich in Iodine for Thyroid Support Optimal Nutrient Potency Convenient Vegan Capsules | Promotes Holistic Wellness | 90 Vegicaps**KIKI HEALTH**£14.59**4.6★73 rev](https://www.amazon.co.uk/dp/B0BNC7QZBK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Organic Irish Sea Moss Extract 12 000mg - High Strength 25:1 Extract - 60 Vegan Capsules - Pure with no fillers**NEO-NUTRITION**£8.00**8 rev10mo ago](https://www.amazon.co.uk/dp/B0FRZ4FR3M) [**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**£12.44**72 rev10mo ago](https://www.amazon.co.uk/dp/B0FNMWNJ22) [**Sea Moss and Bladderwrack - 4000mg - 60 Capsules - Vegan Friendly - Wild Harvested Irish Seamoss - UK Made MOBU**MOBU**£5.80**39 rev1y ago](https://www.amazon.co.uk/dp/B0FDR5KXCB) [**iPerk Sea Moss Complex: Bladderwrack Burdock & Ashwagandha - 14 000mg High Potency Formula - 60 Vegan Capsules - UK Manufactured**iperk**£4.71**16 rev1y ago](https://www.amazon.co.uk/dp/B0FBN4DRWS) [**Irish Sea Moss Tablets High Strength 6000mg 120 Vegan Tablets - UK Made by Prowise Healthcare**PH PROWISE Healthcare**£6.55**114 rev1y ago](https://www.amazon.co.uk/dp/B0DXF2NHHW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**£12.44**4.6★**▲ 318%**](https://www.amazon.co.uk/dp/B0FNMWNJ22) [**Organic Irish Sea Moss Extract 12 000mg - High Strength 25:1 Extract - 60 Vegan Capsules - Pure with no fillers**NEO-NUTRITION**£8.00**4.9★**▲ 154%**](https://www.amazon.co.uk/dp/B0FRZ4FR3M) [**Sea Moss and Bladderwrack 120 Capsules (4000mg) | 1-A-Day 4 Months Supply | Vegan | Wild Harvested Sea Moss | Non GMO | Dr Sebi Irish Sea Moss | UK Company (120 Count Pack of 1)**MetaSuperfoods**£13.61**4.5★**▲ 151%**](https://www.amazon.co.uk/dp/B0811Z9C4W) [**Organic Irish Sea Moss Extract 15 000mg - High Strength 25:1 Extract - 90 Vegan Capsules - Resealable and Recyclable Pouch by Alpha01**ALPHA01**£7.58**4.5★**▲ 140%**](https://www.amazon.co.uk/dp/B0DHQYH8Y7) [**Sea Moss Extract 4000mg Per Serving | 180 Vegan Tablets - 3 Month Supply | High Strength Irish Sea Moss | Made in The UK by Shivay Herbals**Shivay Herbals**£6.43**4.7★**▲ 132%**](https://www.amazon.co.uk/dp/B0DH55B68M)
**~~View all trending →~~**
## **What buyers say about sea moss capsule**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“Good quality and easy to swallow”*
**Value For Money**15%
*“Good price”*
**Advertised Vs Actual Product**9%
*“As advertised, they work for me”*
**Dosage**5%
*“The dosage is decent compared to similar products”*
**Ease Of Use**5%
*“I feel better using it”*
**Sleep Quality**4%
*“Sleeping better”*
**Ease Of Chewing/Swallowing**4%
*“Easy to swallow”*
**Energy Level**3%
*“more energy”*
**Side Effects**3%
*“No side effects”*
**Nutritional Content**3%
*“Take daily great product”*
### **What buyers complain about **
**Dosage**16%
*“Highly disappointed with this as I struggle to take tablets”*
**Functionality-Overall**13%
*“Absolutely no difference whatsoever”*
**Value For Money**13%
*“Not the cheapest”*
**Taste-Overall**9%
*“also have a kind of fishy after taste”*
**Quality-Overall**8%
*“not the best”*
**Side Effects**6%
*“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”*
**Dilute/Watery**5%
*“wondering why I was so dehydrated”*
**Ease Of Chewing/Swallowing**5%
*“Hard to swallow”*
**Ease Of Use**2%
*“The capsules I found to be quite difficult to take”*
**Moist/Dry**2%
*“a bit dry I suppose”*
## **Common questions**
- **Is sea moss capsule profitable to sell on Amazon United Kingdom?**
- The niche generates £23K/yr across 26 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -31.4%. Flapen's verdict: Skip it (46/100).
- **How competitive is the sea moss capsule niche?**
- 22 brands and 24 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in sea moss capsule?**
- Top complaints mined from reviews: Dosage, Functionality-Overall, Value For Money. The return rate is 0.1%.
- **When does demand for sea moss capsule peak?**
- Demand peaks in Sep–Oct–Nov–Dec; the busiest month runs 24.6× the quietest.
- **What does it cost to enter the sea moss capsule niche?**
- Listings span £4.23–£18.69; the average listing price is £9.64 (sweet spot $15–$100). The average incumbent carries 489 reviews — the moat a new listing must climb.
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