---
title: "超かるすncr — ¥1.8M/yr Amazon JP Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/jp/diy/ncr"
last_updated: "2026-08-08T08:42:00.385Z"
locale: en
meta:
description: "Niche score 46/100 · ¥1.8M/yr market · 7K searches/yr · ¥3034.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · ¥1.8M/yr market · 7K searches/yr · ¥3034.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "超かるすncr — ¥1.8M/yr Amazon JP Niche (2026) - Flapen"
---
# **超かるすncr**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 91Growth 19Conversion 82Competition 0Returns 99Price range 0Avg price 0Brand share 0Review moat 73Quality gap 78
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Market size**
**Great****¥1.8M**
¥1.8M/yr · 7K searches
**Conversion**
**Great****8.7%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****599.5**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-12.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Avg price**
**Bad****¥3034.04**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****¥1506.01–¥5709.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Price**](https://flapen.com/research/niches?market=jp&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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.
300200Black Friday '25Spike '26 seasonAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Apr, May, Oct · busiest ÷ quietest = 6.6×
[**Open Trend **](https://flapen.com/research/jp/diy/ncr/trend)
## **Top 超かるすncr search terms**
- **超かるすncr**2K/yr+57.6%7.4% conv. - **古い土の再生材 カーメン君**2K/yr-10.9%1.7% conv. - **超かるすnc-r**3K/yr-75.6%7.5% conv. [**All search terms **](https://flapen.com/research/jp/diy/ncr/search-terms)
## **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.
0%15%¥266K30%¥533K45%¥799K60%¥1.1M1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**リサール酵産 超カルスNC-R 500g|土壌改良資材**超SUPERカルスNC-R**¥2512.80**4.3★143 rev](https://www.amazon.co.jp/dp/B0CX4L5N58) [2**リサール酵産 超カルスNC-R 30g×10袋|土壌改良資材**超SUPERカルスNC-R**¥2408.16**4.2★716 rev](https://www.amazon.co.jp/dp/B0CM6KF1X6) [3**リサール酵産 カルスＮＣ-Ｒ 1kg（粉状）**アイアグリ(I Agri)**¥1506.01**4.2★1,396 rev](https://www.amazon.co.jp/dp/B09R71VNXS) [4**リサール酵産 超カルスNC-R 500g×3セット|土壌改良資材**超SUPERカルスNC-R**¥5709.21**4.3★143 rev](https://www.amazon.co.jp/dp/B0CY27MMKG)
### **Newest**
by launch date
[**リサール酵産 超カルスNC-R 500g|土壌改良資材**超SUPERカルスNC-R**¥2512.80**143 rev2y ago](https://www.amazon.co.jp/dp/B0CX4L5N58) [**リサール酵産 超カルスNC-R 500g×3セット|土壌改良資材**超SUPERカルスNC-R**¥5709.21**143 rev2y ago](https://www.amazon.co.jp/dp/B0CY27MMKG) [**リサール酵産 超カルスNC-R 30g×10袋|土壌改良資材**超SUPERカルスNC-R**¥2408.16**716 rev2y ago](https://www.amazon.co.jp/dp/B0CM6KF1X6) [**リサール酵産 カルスＮＣ-Ｒ 1kg（粉状）**アイアグリ(I Agri)**¥1506.01**1,396 rev4y ago](https://www.amazon.co.jp/dp/B09R71VNXS)
### **Trending**
90-day click momentum
[**リサール酵産 超カルスNC-R 500g×3セット|土壌改良資材**超SUPERカルスNC-R**¥5709.21**4.3★**▲ 113%**](https://www.amazon.co.jp/dp/B0CY27MMKG) [**リサール酵産 超カルスNC-R 500g|土壌改良資材**超SUPERカルスNC-R**¥2512.80**4.3★**▲ 28%**](https://www.amazon.co.jp/dp/B0CX4L5N58) [**リサール酵産 カルスＮＣ-Ｒ 1kg（粉状）**アイアグリ(I Agri)**¥1506.01**4.2★**▼ 20%**](https://www.amazon.co.jp/dp/B09R71VNXS) [**リサール酵産 超カルスNC-R 30g×10袋|土壌改良資材**超SUPERカルスNC-R**¥2408.16**4.2★**▼ 24%**](https://www.amazon.co.jp/dp/B0CM6KF1X6)
## **What buyers say about 超かるすncr**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**使用の容易さ**26%
*“手軽に使える”*
**環境に優しい**13%
*“自分の中では最高の微生物資材です”*
**効率**10%
*“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。”*
**総合品質**10%
*“良い品です”*
**リサイクル・再利用**5%
*“残渣をすき込んで分解リサイクル効果出てます。”*
**コストパフォーマンス**5%
*“近くのホームセンターより手頃だった”*
**柔らかい感触**4%
*“土が柔らかくなり”*
**広告と実際の製品の違い**3%
*“商品説明どおり”*
**匂い**3%
*“嫌な匂いも全くせず。”*
**強さ**2%
*“安定の性能。”*
### **What buyers complain about **
**コストパフォーマンス**40%
*“もう少し値段が下がるといいなぁ。”*
**機能全体**13%
*“効果は、まったくわからなかった。”*
**使用の容易さ**5%
*“取り扱いが少し大変(..)”*
**破れ抵抗性**4%
*“破れにくい袋にしていただきたいです。”*
**色**4%
*“芝の色が濃くなりました”*
**測定/読み取り精度**4%
*“割合正しいか、わからなかったです”*
**強さ**4%
*“よく見ると、カルスの袋が弱いように思います。”*
**生锈/腐食する**2%
*“腐敗します”*
**匂い**2%
*“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。”*
**リサイクル・再利用**2%
*“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 **
**漏れ防止**63%
**総合品質**13%
**保管容量**13%
**サイズ全体**13%
## **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.
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