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58

mcpp

Launch it

A $4.8M/yr market growing +49.9% this quarter with returns at 0.1% — clears our launch bar.

Market size 97Growth 69Conversion 81Competition 9Returns 99Price range 0Avg price 0Brand share 5Review moat 89Quality gap 90

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Market size

Incredible¥4.8M

¥4.8M/yr · 18K searches

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Review moat

Great216.33

avg incumbent reviews — the moat a new listing must climb

Conversion

Great8.4%

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

Growth

Good+49.9%

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

Competition

Bad90%

top-5 click share — a locked-up shelf

Brand share

Bad98%

top-5 brand share — brand-locked demand

Avg price

Bad¥3186.06

avg listing price — sweet spot $15–$100

Price range

Bad¥638.24–¥13914.96

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

According to Flapen's Amazon Japan niche tracking, mcpp is a ¥4.8M/yr Amazon Japan market (18K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Launch it — 58/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

mcpp market data

Units sold / yr
2K–3K
avg 100–250/product
Revenue / yr
¥6.4M–¥8.0M
units × avg price
Conversion rate
8.4%
Avg BSR
#185
Page quality
0%
Prime
67%
Sponsored
11%
Out of stock
0.0%
Avg brand age
112 months
Avg seller age
191 days

Competition & brand share

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 falling

Sellers

30

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

0%

  • MBC(丸和バイオケミカル)62%
  • 理研グリーン24%
  • ノーブランド品7%
  • 丸和バイオケミカル(MBC)4%
  • KINCHO園芸2%
  • 日産化学(Nissan Chemical)2%
  • Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +49.9% search growth over the last 90 days.
1K600Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 22.1×

Top mcpp search terms

  • mcpp7K/yr
  • mcpp液剤 500ml5K/yr
  • mcpp 除草剤 芝生6K/yr
All search terms

Top mcpp 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%10%¥484K20%¥968K30%¥1.5M40%¥1.9M101001K 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 9 tracked products in this niche — three views at once, no toggling.

What buyers say about mcpp

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

What buyers love

使用の容易さ33%

“使用すればわかる”

効率17%

“効きに関して”

総合品質17%

“良い商品”

強さ17%

“よく効く”

コストパフォーマンス17%

“コスパもいい”

What buyers complain about

スプレー/フロー50%

“血止草、一回噴霧では効果が薄い感じでした、一週間後二度目を散布しました。”

使用説明書/ユーザーマニュアル/トラブルシューティング50%

“指示してないのに置き配された”

Common questions

Is mcpp profitable to sell on Amazon Japan?
The niche generates ¥4.8M/yr across 9 tracked products. 90-day search growth is +49.9%. Flapen's verdict: Launch it (58/100).
How competitive is the mcpp niche?
6 brands and 30 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in mcpp?
Top complaints mined from reviews: スプレー/フロー, 使用説明書/ユーザーマニュアル/トラブルシューティング. The return rate is 0.1%.
When does demand for mcpp peak?
Demand peaks in Apr–May–Jun–Jul; the busiest month runs 22.1× the quietest.
What does it cost to enter the mcpp niche?
Listings span ¥638.24–¥13914.96; the average listing price is ¥3186.06 (sweet spot $15–$100). The average incumbent carries 216 reviews — the moat a new listing must climb.