---
title: "Kojic Acid Soap — $1.8M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/kojic-acid-soap"
last_updated: "2026-08-11T17:39:41.024Z"
locale: en
meta:
description: "Niche score 49/100 · $1.8M/yr market · 2.3M searches/yr · $10.41 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $1.8M/yr market · 2.3M searches/yr · $10.41 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Kojic Acid Soap — $1.8M/yr Amazon US Niche (2026) - Flapen"
---
# **kojic acid soap**
**Skip it**
Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Market size 92Growth 35Conversion 78Competition 17Returns 98Price range 7Avg price 37Brand share 5Review moat 15Quality gap 67
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Market size**
**Great****$1.8M**
$1.8M/yr · 2.3M searches
**Conversion**
**Great****7.7%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Okay****$10.41**
avg listing price — sweet spot $15–$100
**Growth**
**Okay****+8.4%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****21,898.64**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Bad****$5.95–$15.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****98%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, kojic acid soap is a $1.8M/yr Amazon United States market (2.3M searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 49/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kojic acid soap market data**
- **Units sold / yr**
- **150K–200K**
- avg 12,500–15,000/product
- **Revenue / yr**
- **$1.6M–$2.1M**
- units × avg price
- **Conversion rate**
- **7.7%**
- **Avg BSR**
- **#76**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **73%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **58 months**
- **Avg seller age**
- **127 days**
## **Competition & brand share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**29**
**Top-5 brand share**
**98%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**0%**
- Kojie San56% - VALITIC29% - ORIENTLEAF6% - OAKDOLCHE4% - Good Molecules3% - Kitsch2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +8.4% search growth over the last 90 days.
80K60KSpike '25Prime Day '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/kojic-acid-soap/trend)
## **Top kojic acid soap search terms**
- **kojic acid soap**1.4M/yr+5.2%6.8% conv. - **whitening soap**116K/yr+19.0%1.9% conv. - **kojie san soap**109K/yr+37.9%7.1% conv. - **kojic soap**101K/yr+6.1%4.7% conv. - **brightening soap**79K/yr+2.9%3.2% conv. - **skin lightening soap**69K/yr+19.0%3.1% conv. - **skin brightening soap**47K/yr+12.0%3.1% conv. - **kojie san**44K/yr+24.8%4.0% conv. - **skin whitening soap**43K/yr-11.4%2.5% conv. - **bleaching soap**35K/yr+23.7%2.1% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/kojic-acid-soap/search-terms)
## **Top kojic acid soap 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%$183K20%$366K30%$549K40%$732K1K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kojie San Skin and Body Brightening Soap - Original Kojic Acid Dark Spot Remover Bar Soap with Glycerin & Tea Tree Oil - 65g x 2 Bars**Kojie San**$8.63**4.3★31,801 rev](https://www.amazon.com/dp/B00R602KOQ) [2**VALITIC Kojic Acid Dark Spot Remover Soap Bars with Vitamin C Retinol Collagen Turmeric - Original Japanese Complex Infused with Hyaluronic Acid Vitamin E Shea Butter Castile Olive Oil (2 Pack)**VALITIC**$14.22**4.3★71,606 rev](https://www.amazon.com/dp/B09MFMCTRK) [3**Kojie San Original Kojic Acid Soap for Face and Body Dark Spot Remover Gentle Cleansing Bar with Coconut Oil Tea Tree Oil and Glycerin Helps Improve Skin Appearance 65g x 1 Bar**Kojie San**$5.95**4.3★31,801 rev](https://www.amazon.com/dp/B0B834DZTK) [4**ORIENTLEAF Kojic Acid Soap Turmeric Soap Bar for Dark Spots Fresh Citrus Scent Gentle for Face and Body Wash with Vitamin C Shea Butter Retinol Gifts for Women (3 PACK)**ORIENTLEAF**$6.35**4.4★4,948 rev](https://www.amazon.com/dp/B0D4QHYD6R) [5**VALITIC Kojic Acid Dark Spot Remover Soap Bars with Vitamin C Retinol Collagen Turmeric - Original Japanese Complex Infused with Hyaluronic Acid Vitamin E Shea Butter Castile Olive Oil (3 Pack)**VALITIC**$15.68**4.3★71,606 rev](https://www.amazon.com/dp/B0B2X2L8G8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**OAKDOLCHE 5 Pack Turmeric Kojic Acid Soap Bars(80g) - Infused with Retinol Hydrolyzed Collagen Vitamin E & Shea Butter Gentle Care for Face Body & Underarms SLS Free Suitable for Oily & Dry Skin**OAKDOLCHE**$7.92**1,111 rev11mo ago](https://www.amazon.com/dp/B0FMF7SFPG) [**Good Molecules Brightening & Dark Spots Bar - Soap Free Face and Body Bar - Tranexamic Kojic Acids and Niacinamide to Target Dark Spots - Skin Care**Good Molecules**$8.07**3,171 rev1y ago](https://www.amazon.com/dp/B0DJHMKN7C) [**Kitsch Kojic Acid Soap Turmeric Soap Bar with Hyaluronic Acid & Shea Butter Brightening & Hydrating Body Wash & Face Wash for Dark Spots Even Skin Tone & Natural Glow - Made in USA - 4 oz**Kitsch**$10.54**9,966 rev2y ago](https://www.amazon.com/dp/B0D827ZY5Y) [**ORIENTLEAF Kojic Acid Soap Turmeric Soap Bar for Dark Spots Fresh Citrus Scent Gentle for Face and Body Wash with Vitamin C Shea Butter Retinol Gifts for Women (3 PACK)**ORIENTLEAF**$6.35**4,948 rev2y ago](https://www.amazon.com/dp/B0D4QHYD6R) [**Kojie San Original Kojic Acid Soap for Face and Body Dark Spot Remover Gentle Cleansing Bar with Coconut Oil Tea Tree Oil and Glycerin Helps Improve Skin Appearance 65g x 1 Bar**Kojie San**$5.95**31,801 rev3y ago](https://www.amazon.com/dp/B0B834DZTK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**OAKDOLCHE 5 Pack Turmeric Kojic Acid Soap Bars(80g) - Infused with Retinol Hydrolyzed Collagen Vitamin E & Shea Butter Gentle Care for Face Body & Underarms SLS Free Suitable for Oily & Dry Skin**OAKDOLCHE**$7.92**4.5★**▲ 123%**](https://www.amazon.com/dp/B0FMF7SFPG) [**VALITIC Kojic Acid Dark Spot Remover Soap Bars with Vitamin C Retinol Collagen Turmeric - Original Japanese Complex Infused with Hyaluronic Acid Vitamin E Shea Butter Castile Olive Oil (3 Pack)**VALITIC**$15.68**4.3★**▲ 45%**](https://www.amazon.com/dp/B0B2X2L8G8) [**Kojie San Skin Brightening Soap - Bundle Pack - Original Kojic Acid Dark Spot Remover Bar Soap with Coconut & Tea Tree Oil 65g x 4 Bars**Kojie San**$15.49**4.4★**▲ 20%**](https://www.amazon.com/dp/B0948M2T6V) [**Kojie San Original Kojic Acid Soap for Face and Body Dark Spot Remover Gentle Cleansing Bar with Coconut Oil Tea Tree Oil and Glycerin Helps Improve Skin Appearance 65g x 1 Bar**Kojie San**$5.95**4.3★**▲ 17%**](https://www.amazon.com/dp/B0B834DZTK) [**Kitsch Kojic Acid Soap Turmeric Soap Bar with Hyaluronic Acid & Shea Butter Brightening & Hydrating Body Wash & Face Wash for Dark Spots Even Skin Tone & Natural Glow - Made in USA - 4 oz**Kitsch**$10.54**4.5★**▲ 14%**](https://www.amazon.com/dp/B0D827ZY5Y)
**~~View all trending →~~**
## **What buyers say about kojic acid soap**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**15%
*“Awesome smell”*
**Suitability Combination Skin**11%
*“Good for sensitive skin”*
**Quality-Overall**10%
*“Excellent product”*
**Efficiency**8%
*“Found to be effective”*
**Soft Feel**8%
*“My skin is so soft”*
**Cleansing**7%
*“very clean”*
**Symptom Reduction**5%
*“it is really working out well with clearing up my acne”*
**Value For Money**4%
*“Great value”*
**Moist/Dry**3%
*“Really good moisturizer”*
**Lather**3%
*“Easy to lather”*
### **What buyers complain about **
**Functionality-Overall**18%
*“it never worked”*
**Symptom Reduction**7%
*“have had no improvements in my skin”*
**Size-Overall**7%
*“Soaps too small”*
**Allergies**7%
*“Itchy”*
**Smell**6%
*“The fragrance is extremely strong”*
**Skin Health**5%
*“After seeing my dermatologist I was told it was essentially a chemical burn along with a case of perioral dermatitis triggered by the product”*
**Moist/Dry**4%
*“Makes skin dry”*
**Value For Money**3%
*“expensive”*
**Lather**3%
*“Doesn't lather up”*
**Stain Resistance**3%
*“Stains sink”*
### **Top return reasons **
**Smell**16%
**Advertised Vs Actual Product**15%
**Functionality-Overall**12%
**Size-Overall**11%
**Value For Money**7%
**Defective Material/Parts**4%
**Moist/Dry**4%
**Ingredients-Overall**4%
**Product Condition**4%
**Skin Health**4%
## **Common questions**
- **Is kojic acid soap profitable to sell on Amazon United States?**
- The niche generates $1.8M/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.4%. Flapen's verdict: Skip it (49/100).
- **How competitive is the kojic acid soap niche?**
- 6 brands and 29 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 98% of demand.
- **What do buyers complain about in kojic acid soap?**
- Top complaints mined from reviews: Functionality-Overall, Symptom Reduction, Size-Overall. The return rate is 0.4%.
- **When does demand for kojic acid soap peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the kojic acid soap niche?**
- Listings span $5.95–$15.68; the average listing price is $10.41 (sweet spot $15–$100). The average incumbent carries 21,899 reviews — the moat a new listing must climb.
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