Is japanese profitable to sell on Amazon United Kingdom?

The niche generates £408K/yr across 9 tracked products. 90-day search growth is -15.7%. Flapen's verdict: Skip it (36/100).

How competitive is the japanese niche?

4 brands and 32 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in japanese?

Top complaints mined from reviews: Value For Money, Taste-Overall, Size-Overall. The return rate is 0.0%.

When does demand for japanese peak?

Demand peaks in Nov–Dec; the busiest month runs 5.0× the quietest.

What does it cost to enter the japanese niche?

Listings span £3.63–£16.20; the average listing price is £9.42 (sweet spot $15–$100). The average incumbent carries 1,933 reviews — the moat a new listing must climb.

japanese

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Good5.1%

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

Market size

Good£408K

£408K/yr · 852K searches

Review moat

Okay1,932.67

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£9.42

avg listing price — sweet spot $15–$100

Growth

Bad-15.7%

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

Competition

Bad86%

top-5 click share — a locked-up shelf

Price range

Bad£3.63–£16.20

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, japanese is a £408K/yr Amazon United Kingdom market (852K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 36/100.

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

japanese market data

Units sold / yr: 40K–50K; avg 1,500–2,000/product
Revenue / yr: £377K–£471K; units × avg price
Conversion rate: 5.1%
Avg BSR: #247
Page quality: 0%
Prime: 100%
Sponsored: 44%
Out of stock: 2.1%
Avg brand age: 46 months
Avg seller age: 170 days

Competition & brand share

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

86%

Top 20: 100%

Open market

Kewpie87%
London Grocery6%
Sock Affairs5%
SUSHICANDY The Sweet taste of Japan2%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -15.7% search growth over the last 90 days.

Peak months: Nov, Dec · busiest ÷ quietest = 5.0×

Open Trend

Top japanese search terms

japanese289K/yr -12.3%0.1% conv.
kewpie mayo130K/yr -26.0%14.3% conv.
japanese gifts254K/yr -11.3%0.1% conv.
japanese food70K/yr -22.3%0.1% conv.
kewpie27K/yr -10.7%10.0% conv.
kewpie mayonnaise15K/yr +15.8%12.2% conv.
japanese mayonnaise16K/yr -17.3%12.1% conv.
japanese gifts for men31K/yr -1.6%0.2% conv.
japanese mayo8K/yr -20.4%11.2% conv.
japan gifts11K/yr -14.3%0.1% conv.

All search terms

Top japanese 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kewpie Mayonnaise 355ml | Authentic Japanese Mayo | Rich Umami Flavour | No MSG & Gluten-Free

Kewpie£4.484.6★859 rev

Kewpie Mayonnaise 450g | Rich Umami-Packed Japanese Mayo

Kewpie£5.444.7★6,095 rev

Kewpie Mayonnaise 450g (Pack of 2) | Rich Umami-Packed Japanese Mayo

Kewpie£11.594.7★6,095 rev

Kewpie Mayonnaise 350ml

Kewpie£6.184.5★1,628 rev

Kenko Japanese Mayonnaise 500g

London Grocery£3.634.6★205 rev

Newest

by launch date

Kewpie Mayonnaise 2400ml

Kewpie£15.4643 rev

1y ago

Sock Affairs Japanese Art Socks Collection Great Wave of Kanagawa Ramen Sushi Carps Swimming Cancel My Subscription Gifts for Art Lovers Cotton Socks 2 Sizes 4-7 and 7-11

Sock Affairs£9.0981 rev

2y ago

Kewpie Mayonnaise 355ml | Authentic Japanese Mayo | Rich Umami Flavour | No MSG & Gluten-Free

Kewpie£4.48859 rev

3y ago

Kewpie Mayonnaise 15.87oz/450g (3 Pack)

Kewpie£16.2062 rev

7y ago

Kewpie Mayonnaise 350ml

Kewpie£6.181,628 rev

8y ago

What buyers say about japanese

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

What buyers love

Taste-Overall46%

“Fantastic taste”

Flavor12%

“this has depths of flavour”

Value For Money10%

“Worth, every penny”

Gifting Purpose4%

“A unique gift”

Quality-Overall3%

“the high-quality ingredients”

Size-Overall3%

“theres a variety to fit anyone”

Texture/Consistency-Overall2%

“Creamy”

Sweetness2%

“a very assortment of sweets”

Thickness2%

“Great taste, thick and tasty”

Advertised Vs Actual Product1%

“Exactly what I ordered”

What buyers complain about

Value For Money29%

“Just wish it was a bit cheaper”

Taste-Overall15%

“Tastes like salad cream”

Size-Overall12%

“Tiny box”

Salt Content7%

“It is saltier”

Thickness5%

“It's much thicker”

Stale/Rotten/Spoiled3%

“Stale and small”

Dilute/Watery2%

“viscous as hellmans”

Ingredients-Overall2%

“They have completely different ingredients”

Allergies2%

“Which I found unusual because surely people with allergies need to know that information”

Flavor1%

“off with little flavour”

Top return reasons

Advertised Vs Actual Product100%

Common questions

Is japanese profitable to sell on Amazon United Kingdom?: The niche generates £408K/yr across 9 tracked products. 90-day search growth is -15.7%. Flapen's verdict: Skip it (36/100).
How competitive is the japanese niche?: 4 brands and 32 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in japanese?: Top complaints mined from reviews: Value For Money, Taste-Overall, Size-Overall. The return rate is 0.0%.
When does demand for japanese peak?: Demand peaks in Nov–Dec; the busiest month runs 5.0× the quietest.
What does it cost to enter the japanese niche?: Listings span £3.63–£16.20; the average listing price is £9.42 (sweet spot $15–$100). The average incumbent carries 1,933 reviews — the moat a new listing must climb.