---
title: "Seaweed — £285K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/grocery/seaweed"
last_updated: "2026-07-31T13:19:36.722Z"
locale: en
meta:
description: "Niche score 45/100 · £285K/yr market · 399K searches/yr · £8.16 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · £285K/yr market · 399K searches/yr · £8.16 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Seaweed — £285K/yr Amazon UK Niche (2026) - Flapen"
---
# **seaweed**
**Skip it**
Prices mostly outside the sweet spot ($1.55–$14.86) — this niche doesn't clear our bar today.
Market size 50Growth 19Conversion 82Competition 38Returns 100Price range 0Avg price 23Brand share 9Review moat 62Quality gap 57
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****8.7%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,019**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****£285K**
£285K/yr · 399K searches
**Competition**
**Okay****62%**
top-5 click share — leaders hold, buyers still browse
**Avg price**
**Bad****£8.16**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-11.2%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****96%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****£1.55–£14.86**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, seaweed is a £285K/yr Amazon United Kingdom market (399K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 45/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **seaweed market data**
- **Units sold / yr**
- **30K–40K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£245K–£326K**
- units × avg price
- **Conversion rate**
- **8.7%**
- **Avg BSR**
- **#78**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **43%**
- **Out of stock**
- **1.7%**
- **Avg brand age**
- **54 months**
- **Avg seller age**
- **166 days**
## **Competition & brand share**
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**8 **▼falling
**Sellers**
**47**
**Top-5 brand share**
**96%**
Top 20: 100%
**Top-5 click share**
**62%**
Top 20: 99%
**Open market**
**2%**
- Itsu48% - CHOI'S 135% - Emma Basic9% - Kaitatuya2% - Yutaka2% - Abakus1% - Open — no brand owns it (2 brands, 2%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -11.2% search growth over the last 90 days.
9K7KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/grocery/seaweed/trend)
## **Top seaweed search terms**
- **seaweed**187K/yr-16.4%8.1% conv. - **seaweed snacks**108K/yr-15.7%6.5% conv. - **itsu seaweed thins**35K/yr+23.7%12.8% conv. - **seaweed snack**14K/yr+6.9%3.6% conv. - **sea weed**12K/yr-13.8%4.1% conv. - **seaweed thins**10K/yr-1.4%9.8% conv. - **crispy seaweed**11K/yr-24.4%5.1% conv. - **itsu seaweed**7K/yr-8.3%12.0% conv. - **korean seaweed**5K/yr-0.5%2.6% conv. - **crispy seaweed snacks**3K/yr+0.3%5.5% conv. [**All search terms **](https://flapen.com/research/uk/grocery/seaweed/search-terms)
## **Top seaweed 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%£14K10%£28K15%£43K20%£57K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sweet Soy & Salt | Pack of 20**Itsu**£10.36**4.4★773 rev](https://www.amazon.co.uk/dp/B0DCK3B1S2) [2**CHOIS 1 Organic DAECHUN Seaweed Snacks 20 Pack Original Product of Korea Premium Great**CHOI'S 1**£9.31**4.5★2,319 rev](https://www.amazon.co.uk/dp/B08HXXNWYT) [3**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sea Salt | Pack of 20**Itsu**£10.83**4.4★3,897 rev](https://www.amazon.co.uk/dp/B0DCK2X64X) [4**Daechun(Chois1) Seaweed Snack (Pack of 20) Original Sea Salt Green Tea Powder Product of Korea**CHOI'S 1**£8.38**4.5★4,644 rev](https://www.amazon.co.uk/dp/B07QL6W479) [5**Emma Basic Seaweed Sushi Nori | 40 Full Roasted Seaweed Sheets | Young Harvest | Crispy & Crunchy | High Protein | High Fibre | Vegan**Emma Basic**£7.34**4.6★3,644 rev](https://www.amazon.co.uk/dp/B089ZWKDJR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Chois 1 Trayless Seaweed Snack Korean Roasted Laver Eco-Friendly Packaging Healthy Vegan Snack Gluten-Free 20 X 4g Made in Korea**CHOI'S 1**£9.74**131 rev1y ago](https://www.amazon.co.uk/dp/B0DTK9BPH4) [**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sweet Soy & Salt | Pack of 20**Itsu**£10.36**773 rev1y ago](https://www.amazon.co.uk/dp/B0DCK3B1S2) [**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sea Salt | Pack of 20**Itsu**£10.83**3,897 rev1y ago](https://www.amazon.co.uk/dp/B0DCK2X64X) [**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sriracha | Pack of 20**Itsu**£13.16**140 rev1y ago](https://www.amazon.co.uk/dp/B0DCK2TJM8) [**Emma Basic - South Korean Seaweed Sushi Nori 50 full sheets | Young & Crunchy | High Protein | High Fibre**Emma Basic**£8.55**286 rev2y ago](https://www.amazon.co.uk/dp/B0D5NG42L8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Yutaka Roasted Seaweed Sushi Nori 5 Sheets 11g**Yutaka**£1.80**4.6★**▲ 279%**](https://www.amazon.co.uk/dp/B01CT00IOG) [**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sweet Soy & Salt | Pack of 20**Itsu**£10.36**4.4★**▲ 144%**](https://www.amazon.co.uk/dp/B0DCK3B1S2) [**itsu Crispy Seaweed Thins Sweet Soy & Sea Salt 4 x 5g (20g)**Itsu**£2.34**4.2★**▲ 50%**](https://www.amazon.co.uk/dp/B0CV7J2P5Q) [**Blue Dragon Sushi Nori 11g | 5 Sheets | Authentic Dried & Roasted Seaweed | Suitable For Vegans**Blue Dragon**£2.21**4.4★**▲ 34%**](https://www.amazon.co.uk/dp/B00UAO2NVK) [**itsu Seaweed Thins 5g | Crispy Seaweed Snacks | Vegan | Low Calorie | Healthy Snack | Sriracha | Pack of 20**Itsu**£13.16**4.1★**▲ 11%**](https://www.amazon.co.uk/dp/B0DCK2TJM8)
**~~View all trending →~~**
## **What buyers say about seaweed**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**36%
*“Super tasty snack”*
**Quality-Overall**11%
*“perfect for making nori rolls, good quality and good price”*
**Value For Money**11%
*“Best Value”*
**Crispiness**7%
*“Nice and crispy”*
**Flavor**7%
*“Good flavour”*
**Nutritional Content**5%
*“Low calorie”*
**Freshness**3%
*“Very fresh”*
**Salt Content**3%
*“not too salty”*
**Health Benefits-Overall**3%
*“Tasty, healthy snack that my whole family enjoys”*
**Spiciness**2%
*“Amazing Product - I used them for sushi”*
### **What buyers complain about **
**Taste-Overall**22%
*“So it's not to everyone's taste”*
**Value For Money**12%
*“rather expensive”*
**Flavor**7%
*“Awful flavour”*
**Crispiness**6%
*“not crisp at all”*
**Quality-Overall**5%
*“However the quality is inconsistent”*
**Size-Overall**4%
*“Smaller than expected”*
**Allergies**4%
*“Can cause severe skin rash and itchiness”*
**Advertised Vs Actual Product**4%
*“False advertising”*
**Salt Content**4%
*“Salty snacks”*
**Oily/Greasy**3%
*“One down side would be they are a little greasy on the fingers”*
## **Common questions**
- **Is seaweed profitable to sell on Amazon United Kingdom?**
- The niche generates £285K/yr across 21 tracked products. 90-day search growth is -11.2%. Flapen's verdict: Skip it (45/100).
- **How competitive is the seaweed niche?**
- 8 brands and 47 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 96% of demand.
- **What do buyers complain about in seaweed?**
- Top complaints mined from reviews: Taste-Overall, Value For Money, Flavor. The return rate is 0.0%.
- **When does demand for seaweed peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the seaweed niche?**
- Listings span £1.55–£14.86; the average listing price is £8.16 (sweet spot $15–$100). The average incumbent carries 1,019 reviews — the moat a new listing must climb.
## **Related niches in Grocery**
- 69 [**garden broom**](https://flapen.com/research/uk/grocery/garden-broom)£911K/yr+38.0%**Launch it**- 69 [**electrolytes sachets**](https://flapen.com/research/uk/grocery/electrolytes-sachets)£1.6M/yr+45.8%**Launch it**- 69 [**spider repellent plug in**](https://flapen.com/research/uk/grocery/spider-repellent-plug-in)£109K/yr+71.2%**Worth a look**- 69 [**ice cream tubs**](https://flapen.com/research/uk/grocery/ice-cream-tubs)£167K/yr+150.5%**Worth a look**- 70 [**alcohol free beer**](https://flapen.com/research/uk/grocery/alcohol-free-beer)£514K/yr+32.4%**Worth a look**- 70 [**ice cream cones**](https://flapen.com/research/uk/grocery/ice-cream-cones)£135K/yr+176.7%**Worth a look**[**All Grocery niches **](https://flapen.com/research/uk/grocery)