---
title: "Shampoo Bar — $2.1M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/shampoo-bar"
last_updated: "2026-08-10T14:11:26.483Z"
locale: en
meta:
description: "Niche score 60/100 · $2.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 60/100 · $2.1M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Shampoo Bar — $2.1M/yr Amazon US Niche (2026) - Flapen"
---
# **shampoo bar**
**Worth a look**
Shows low returns (0.7%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 95Growth 21Conversion 79Competition 58Returns 96Price range 65Avg price 70Brand share 30Review moat 22Quality gap 57
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$2.1M**
$2.1M/yr · 1.8M searches
**Conversion**
**Great****8.0%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$14.41**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$6.49–$30.54**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****87%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****8,874.1**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-8.6%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, shampoo bar is a $2.1M/yr Amazon United States market (1.8M searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Worth a look — 60/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **shampoo bar market data**
- **Units sold / yr**
- **125K–150K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$1.8M–$2.2M**
- units × avg price
- **Conversion rate**
- **8.0%**
- **Avg BSR**
- **#217**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **1.1%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **126 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▼falling
**Sellers**
**532**
**Top-5 brand share**
**87%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 88%
**Open market**
**10%**
- Kitsch57% - The Earthling Co.13% - DBEAUTYM7% - Viori6% - ANIHANA4% - MARS MADE3% - Open — no brand owns it (5 brands, 10%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -8.6% search growth over the last 90 days.
225K175KSpike '24Holiday '24Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Nov, Dec · busiest ÷ quietest = 4.1×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/shampoo-bar/trend)
## **Top shampoo bar search terms**
- **shampoo bar**913K/yr-7.8%4.3% conv. - **bar shampoo**251K/yr-1.3%5.2% conv. - **kitsch shampoo bar**206K/yr-33.6%9.4% conv. - **shampoo bars**107K/yr-12.4%3.0% conv. - **solid shampoo**51K/yr-4.2%3.6% conv. - **kitsch rosemary and biotin shampoo**29K/yr-25.4%9.0% conv. - **earthling co shampoo bar**24K/yr+54.8%8.3% conv. - **shampoo en barra**40K/yr-20.3%1.4% conv. - **hair soap**24K/yr+4.5%1.6% conv. - **natural shampoo bar**33K/yr-17.7%1.9% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/shampoo-bar/search-terms)
## **Top shampoo bar 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%$212K20%$425K30%$637K40%$850K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kitsch Rosemary & Biotin Shampoo Bar - For Hair Growth Strengthening Thickening & Volumizing Shampoo for Women and Men - Free of Parabens Sulfates & Silicones - Made in USA 3.5 oz**Kitsch**$12.69**4.5★14,725 rev](https://www.amazon.com/dp/B0GNP1CMWZ) [2**Kitsch Rice Water Shampoo Bar Soap for Hair Growth Made in USA 3.5 oz**Kitsch**$12.75**4.7★459 rev](https://www.amazon.com/dp/B0GNP2K8WW) [3**2 Pack Rosemary Shampoo Bar for Hair Growth Deep Cleansing for Scalp Hair Loss Shampoo Soap Organic Hair Oil Control Solid Shampoo Bar Refreshing and Hydrating Soap for Stocking Stuffers Women Gifts**DBEAUTYM**$9.38**4.3★2,576 rev](https://www.amazon.com/dp/B0DBGYKP1Z) [4**Kitsch Shampoo and Conditioner Set - 4pc Sampler Bars with Rice Water Shampoo and Conditioner Castor Oil Shampoo & Coconut Oil Conditioner - Bottle-Free Beauty for Hair Growth Repair & Moisture**Kitsch**$14.16**4.3★35,973 rev](https://www.amazon.com/dp/B0CV8GNDDC) [5**The Earthling Co. Volumizing Shampoo & Conditioner Bar Set For Thickening Fullness Strength and Growth - Sulfate SIlicone Paraben Free for Thin Flat Fine Hair - Made in USA (Vanilla Coconut)**The Earthling Co.**$30.54**4.5★3,729 rev](https://www.amazon.com/dp/B0DD7XL1MV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Kitsch Rosemary & Biotin Shampoo Bar - For Hair Growth Strengthening Thickening & Volumizing Shampoo for Women and Men - Free of Parabens Sulfates & Silicones - Made in USA 3.5 oz**Kitsch**$12.69**14,725 rev4mo ago](https://www.amazon.com/dp/B0GNP1CMWZ) [**Kitsch Rice Water Shampoo Bar Soap for Hair Growth Made in USA 3.5 oz**Kitsch**$12.75**459 rev4mo ago](https://www.amazon.com/dp/B0GNP2K8WW) [**Kitsch Volumizing Rosemary & Biotin Liquid Conditioner for Women and Men for Hair Growth Boosts Fullness & Shine After 1 Use Thickening Bio-Based Hair Care Color-Safe Made in USA 12.3 oz**Kitsch**$12.75**324 rev9mo ago](https://www.amazon.com/dp/B0FWFFLY92) [**Kitsch Volumizing Rosemary & Biotin Liquid Shampoo for Hair Growth Shampoo for Women & Men Boosts Fullness & Shine After 1 Use Clean Bio-Based Hair Care Color-Safe Made in USA 12.3 oz**Kitsch**$12.37**1,955 rev9mo ago](https://www.amazon.com/dp/B0FWDN31HY) [**Marsmade Castor Oil Shampoo Bar Hydrating & Moisturizing Natural Hair Soap for Bathing Hair Growth & Scalp Nourishment Solid Shampoo for All Hair Types (120g 4.23 oz)**MARS MADE**$13.39**2,314 rev1y ago](https://www.amazon.com/dp/B0DNHT44GL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kitsch Rosemary & Biotin Shampoo Bar - For Hair Growth Strengthening Thickening & Volumizing Shampoo for Women and Men - Free of Parabens Sulfates & Silicones - Made in USA 3.5 oz**Kitsch**$12.69**4.5★**▲ 306%**](https://www.amazon.com/dp/B0GNP1CMWZ) [**Kitsch Volumizing Rosemary & Biotin Liquid Conditioner for Women and Men for Hair Growth Boosts Fullness & Shine After 1 Use Thickening Bio-Based Hair Care Color-Safe Made in USA 12.3 oz**Kitsch**$12.75**4.2★**▲ 232%**](https://www.amazon.com/dp/B0FWFFLY92) [**Kitsch Rice Water Shampoo Bar Soap for Hair Growth Made in USA 3.5 oz**Kitsch**$12.75**4.7★**▲ 226%**](https://www.amazon.com/dp/B0GNP2K8WW) [**Garnier Whole Blends Hydrating Shampoo Bar for Normal Hair Coco & Aloe Vera 2 Oz 1 Count (Packaging May Vary)**Garnier**$6.49**4.3★**▲ 145%**](https://www.amazon.com/dp/B0942CPCR1) [**The Earthling Co. Shampoo Bar - Promote Hair Growth Strengthen & Volumize All Hair Types - Paraben & Sulfate Free formula with Natural Vegan Ingredients for Dry Hair (Citrus Sun 3 oz)**The Earthling Co.**$18.60**4.4★**▲ 83%**](https://www.amazon.com/dp/B09K4S9KJ9)
**~~View all trending →~~**
## **What buyers say about shampoo bar**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**17%
*“mild smell”*
**Lather**12%
*“Rich luxurious lather”*
**Soft Feel**10%
*“My hair feels soft”*
**Quality-Overall**8%
*“This product is fantastic and incredibly well-made”*
**Hair Growth**6%
*“really helps to prevent hair loss”*
**Cleansing**6%
*“Clean and fresh”*
**Ease Of Use**3%
*“Ease of use”*
**Suitability Straight Hair**3%
*“Makes my hair feel great”*
**Value For Money**3%
*“Good for the price”*
**Hair Styling**3%
*“Love this product my curls came out soft and clean and manageable and bouncy”*
### **What buyers complain about **
**Ease Of Use**8%
*“Difficult to open”*
**Moist/Dry**8%
*“a little dry”*
**Smell**8%
*“Smells Awful”*
**Hair Related**6%
*“gets caught in my hair”*
**Durability**6%
*“Fell apart”*
**Lather**5%
*“Doesnt lather”*
**Oily/Greasy**4%
*“made my hair greasy”*
**Allergies**4%
*“Skin Irritation”*
**Value For Money**4%
*“Expensive”*
**Functionality-Overall**3%
*“functionality is poor”*
### **Top return reasons **
**Smell**31%
**Advertised Vs Actual Product**9%
**Size-Overall**7%
**Moist/Dry**6%
**Suitability Short Hair**6%
**Functionality-Overall**5%
**Value For Money**4%
**Lather**3%
**Damage/Burn Hair**3%
**Oily/Greasy**3%
## **Common questions**
- **Is shampoo bar profitable to sell on Amazon United States?**
- The niche generates $2.1M/yr across 29 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is -8.6%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the shampoo bar niche?**
- 11 brands and 532 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 87% of demand.
- **What do buyers complain about in shampoo bar?**
- Top complaints mined from reviews: Ease Of Use, Moist/Dry, Smell. The return rate is 0.7%.
- **When does demand for shampoo bar peak?**
- Demand peaks in Jan–Nov–Dec; the busiest month runs 4.1× the quietest.
- **What does it cost to enter the shampoo bar niche?**
- Listings span $6.49–$30.54; the average listing price is $14.41 (sweet spot $15–$100). The average incumbent carries 8,874 reviews — the moat a new listing must climb.
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