超かるすncr
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Market size
Great¥1.8M¥1.8M/yr · 7K searches
Conversion
Great8.7%search→purchase rate — share of searches ending in a sale
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good599.5avg incumbent reviews — the moat a new listing must climb
Growth
Bad-12.6%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Avg price
Bad¥3034.04avg listing price — sweet spot $15–$100
Price range
Bad¥1506.01–¥5709.21cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon Japan niche tracking, 超かるすncr is a ¥1.8M/yr Amazon Japan market (7K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Oct. Verdict: Skip it — 46/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
超かるすncr market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- ¥759K–¥1.5M
- units × avg price
- Conversion rate
- 8.7%
- Avg BSR
- #3
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 0%
- Out of stock
- 10.3%
- Avg brand age
- 98 months
- Avg seller age
- 204 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
2 falling
Sellers
14
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- 超SUPERカルスNC-R93%
- アイアグリ(I Agri)7%
Demand & seasonality
Weekly Amazon search volume, last 52 weeks — -12.6% search growth over the last 90 days.Peak months: Apr, May, Oct · busiest ÷ quietest = 6.6×
Top 超かるすncr search terms
- 超かるすncr2K/yr
- 古い土の再生材 カーメン君2K/yr
- 超かるすnc-r3K/yr
Top 超かるすncr 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 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Newest
by launch dateWhat buyers say about 超かるすncr
What buyers praise and complain about, mined from review topics.What buyers love
“手軽に使える”
“自分の中では最高の微生物資材です”
“綺麗に残渣処理出来ますが、籾殻や硫安など説明書き通りの配合での使用をお勧めします。”
“良い品です”
“残渣をすき込んで分解リサイクル効果出てます。”
“近くのホームセンターより手頃だった”
“土が柔らかくなり”
“商品説明どおり”
“嫌な匂いも全くせず。”
“安定の性能。”
What buyers complain about
“もう少し値段が下がるといいなぁ。”
“効果は、まったくわからなかった。”
“取り扱いが少し大変(..)”
“破れにくい袋にしていただきたいです。”
“芝の色が濃くなりました”
“割合正しいか、わからなかったです”
“よく見ると、カルスの袋が弱いように思います。”
“腐敗します”
“匂いはカビ臭い匂いを発しますが、野菜の腐った臭いはありません。”
“なかなか捨てにくいベランダ土のリサイクルに。残滓なども入れられて1週間おけばOK。”
Top return reasons
Common questions
- Is 超かるすncr profitable to sell on Amazon Japan?
- The niche generates ¥1.8M/yr across 4 tracked products. 90-day search growth is -12.6%. Flapen's verdict: Skip it (46/100).
- How competitive is the 超かるすncr niche?
- 2 brands and 14 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in 超かるすncr?
- Top complaints mined from reviews: コストパフォーマンス, 機能全体, 使用の容易さ. The return rate is 0.3%.
- When does demand for 超かるすncr peak?
- Demand peaks in Apr–May–Oct; the busiest month runs 6.6× the quietest.
- What does it cost to enter the 超かるすncr niche?
- Listings span ¥1506.01–¥5709.21; the average listing price is ¥3034.04 (sweet spot $15–$100). The average incumbent carries 600 reviews — the moat a new listing must climb.