---
title: "Onion Hydrosol Shampoo — $229K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/onion-hydrosol-shampoo"
last_updated: "2026-08-11T04:16:20.468Z"
locale: en
meta:
description: "Niche score 66/100 · $229K/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 66/100 · $229K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Onion Hydrosol Shampoo — $229K/yr Amazon US Niche (2026) - Flapen"
---
# **onion hydrosol shampoo**
**Worth a look**
Shows demand growing +495.7% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 43Growth 100Conversion 54Competition 28Returns 97Price range 95Avg price 95Brand share 61Review moat 23Quality gap 88
**Growth**
**Incredible****+495.7%**
90-day search growth — must beat 0% to launch
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$31.13**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$16.87–$39.28**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Good****68%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****4.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$229K**
$229K/yr · 163K searches
**Competition**
**Okay****68%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Bad****6,958.75**
avg incumbent reviews — the moat a new listing must climb
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United States niche tracking, onion hydrosol shampoo is a $229K/yr Amazon United States market (163K searches/yr). The top 5 brands hold 68% of demand. Verdict: Worth a look — 66/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **onion hydrosol shampoo market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **$187K–$249K**
- units × avg price
- **Conversion rate**
- **4.5%**
- **Avg BSR**
- **#1,057**
- **Page quality**
- **0%**
- **Prime**
- **75%**
- **Sponsored**
- **100%**
- **Out of stock**
- **30.0%**
- **Avg brand age**
- **49 months**
- **Avg seller age**
- **138 days**
## **Competition & brand share**
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **
**Sellers**
**26**
**Top-5 brand share**
**68%**
Top 20: 100%
**Top-5 click share**
**68%**
Top 20: 100%
**Open market**
**25%**
- BELLISSO19% - NYPKEX17% - JLQJLQ16% - Kranla9% - PURE NATURE LUX SPA8% - Lemcuh6%
## **Demand**
Weekly Amazon search volume, last 14 weeks — +495.7% search growth over the last 90 days.
15K10KSpike '26Apr '26Apr '26May '26May '26May '26Jun '26Jun '26
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/onion-hydrosol-shampoo/trend)
## **Top onion hydrosol shampoo search terms**
- **onion hydrosol shampoo**85K/yr+491.0%3.4% conv. - **onion hydrosol shampoo and conditioner**23K/yr>1,000%3.3% conv. - **based supplies onion hydrosol shampoo**11K/yr>1,000%1.6% conv. - **based supplies onion shampoo**12K/yr+291.6%1.5% conv. - **onion hydrosol shampoo duo**10K/yr+94.3%2.3% conv. - **onion hydrosol shower duo**8K/yr+511.6%2.5% conv. - **onion hydrosol conditioner**4K/yr>1,000%1.2% conv. - **onion hydrosol**5K/yr+381.1%1.3% conv. - **onion hydrosol duo**2K/yr>1,000%1.0% conv. - **dr berg onion shampoo**2K/yr+50.0%1.5% conv. [**All search terms **](https://flapen.com/research/us/beauty-personal-care/onion-hydrosol-shampoo/search-terms)
## **Top onion hydrosol shampoo 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%5%$11K10%$23K15%$34K20%$46K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Onion Shampoo and Conditioner Set - With Rosemary and Biotin - Thickening Products for Women and Men - Volumizing Salon Grade Formula for Thinning Hair Care - Hydrating Moisturizing and Sulfate Free**BELLISSO**$24.14**4.3★46,440 rev](https://www.amazon.com/dp/B0DKL1VDVS) [2**Onion Hydrosol Shampoo for Hair Growth Onion Shampoo with Rosemary and Biotin - Hair Loss & Thickening & Strengthening Formula for Women and Men 10fl.Oz (Shampoos)**NYPKEX**$36.88**4.5★24 rev](https://www.amazon.com/dp/B0GQJHH3C1) [3**Onion Hydrosol Shampoo for Hair Growth Onion Hydrosol with Rosemary Biotin for Stronger Fuller and Thicker Hair Growth Shampoo for Women and Men(1pc)**JLQJLQ**$36.60**4.4★5 rev](https://www.amazon.com/dp/B0GFT6CBJD) [4**Onion Hydrosol Shampoo for Hair Growth Onion Shampoo Sulfate Free with Rosemary & Biotin for Fuller Thicker-Looking Hair for Women and Men 300 mL (10.5 fl oz)**Kranla**$36.91**4.8★8 rev](https://www.amazon.com/dp/B0H1RNZ7KR) [5**Onion Shampoo and Conditioner Set - Sulfate Free Thickening Formula for Men and Women - Paraben Free Volumizing Set for Thin Fine Hair - Volume Boosting Salon Professional Care - 16 Fl Oz (Set of 2)**PURE NATURE LUX SPA**$24.79**4.5★26,676 rev](https://www.amazon.com/dp/B0G71DSGN2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Onion Hydrosol Shampoo and Conditioner Set for Hair Growth Onion Hydrosol Set with Rosemary & Biotin for Stronger Fuller and Thicker Hair (Shampoo and Conditioner Set)**Qukfns**$33.33**2 rev3w ago](https://www.amazon.com/dp/B0H67LPWJ3) [**Based Supplies Onion Hydrosol Shampoo and Conditioner Set with Rosemary and Biotin Hair Care Duo for Stronger Fuller-Looking Hair**FKMEE**$34.88**2 rev3w ago](https://www.amazon.com/dp/B0H5SPP4D4) [**Onion Hydrosol Shampoo for Hair Growth Onion Shampoo with Rosemary Biotin & Mint Hair Loss Thinning and Healthier Thicker hair for Women and Men Nourishing 10oz/300ml(1)**Aultink**$32.97**4 rev1mo ago](https://www.amazon.com/dp/B0H2VCZRYQ) [**Pwkvsn Shampoo (1 Bottle)**Pwkvsn**$36.71**7 rev1mo ago](https://www.amazon.com/dp/B0H2MJYRWB) [**Onion Shampoo and Conditioner For Hair Growth - Onion Hydrosol Shampoo Duo With Biotin Rosemary For Thinning and Healthier Thicker hair - Paraben Free Nourishing Safe for Sensitive Scalp**Lemcuh**$39.28**62 rev1mo ago](https://www.amazon.com/dp/B0H2GD5CMR)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Onion Hydrosol Shampoo with Rosemary & Biotin Thickening and Strengthening Hair Care Formula for Women and Men Lightweight Daily Shampoo 10 fl oz**Dermaphics**$32.65**3.6★**▲ 17%**](https://www.amazon.com/dp/B0H32J3QDS) [**Onion Hydrosol Shampoo and Conditioner Set for Hair Growth Onion Hydrosol Set with Rosemary & Biotin for Stronger Fuller and Thicker Hair (Shampoo and Conditioner Set)**Qukfns**$33.33**5.0★**▲ 17%**](https://www.amazon.com/dp/B0H67LPWJ3) [**Pwkvsn Shampoo (1 Bottle)**Pwkvsn**$36.71**3.5★**▲ 17%**](https://www.amazon.com/dp/B0H2MJYRWB) [**Onion Hydrosol Shampoo for Hair Growth Onion Shampoo with Rosemary Biotin & Mint Hair Loss Thinning and Healthier Thicker hair for Women and Men Nourishing 10oz/300ml(1)**Aultink**$32.97**5.0★**▲ 17%**](https://www.amazon.com/dp/B0H2VCZRYQ) [**Onion Hydrosol Shampoo for Hair Growth Onion Shampoo Sulfate Free with Rosemary & Biotin for Fuller Thicker-Looking Hair for Women and Men 300 mL (10.5 fl oz)**Kranla**$36.91**4.8★**▲ 17%**](https://www.amazon.com/dp/B0H1RNZ7KR)
**~~View all trending →~~**
## **What buyers say about onion hydrosol shampoo**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**32%
*“clean scent”*
**Soft Feel**13%
*“My hair feels softer”*
**Quality-Overall**7%
*“Overall, its a good quality shampoo and Im happy with my purchase”*
**Hair Growth**7%
*“it perfectly delivers on its promises of thicker-looking hair”*
**Cleansing**6%
*“I really like how clean”*
**Lather**6%
*“It lathers well”*
**Value For Money**3%
*“The set offers great value”*
**Moist/Dry**2%
*“Moisturizing feeling”*
**Suitability Straight Hair**2%
*“my hair feels fuller”*
**Ingredients-Overall**1%
*“The onion extract is a unique ingredient”*
### **What buyers complain about **
**Smell**17%
*“smells awful”*
**Allergies**7%
*“itchy, red, and bumpy”*
**Functionality-Overall**6%
*“the pump dont seem to work”*
**Ingredients-Overall**5%
*“The ingredients do not agree with the ones advertised”*
**Hair Related**5%
*“Did not see any difference in my hair length or strength”*
**Motor Power**4%
*“Defective Pump”*
**Advertised Vs Actual Product**4%
*“Deceptive advertising”*
**Value For Money**4%
*“Its over priced”*
**Thickness**3%
*“It doesnt give instant dramatic thickness”*
**Ease Of Cleaning**3%
*“it doesnt feel clean for very long”*
### **Top return reasons **
**Leak-Proof**15%
**Smell**14%
**Value For Money**12%
**Motor Power**12%
**Advertised Vs Actual Product**7%
**Functionality-Overall**5%
**Damage/Burn Hair**5%
**Size-Overall**4%
**Suitability Short Hair**4%
**Ingredients-Overall**4%
## **Common questions**
- **Is onion hydrosol shampoo profitable to sell on Amazon United States?**
- The niche generates $229K/yr across 16 tracked products. 11 of 14 products launched in the last 360 days are still selling. 90-day search growth is +495.7%. Flapen's verdict: Worth a look (66/100).
- **How competitive is the onion hydrosol shampoo niche?**
- 16 brands and 26 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 68% of demand.
- **What do buyers complain about in onion hydrosol shampoo?**
- Top complaints mined from reviews: Smell, Allergies, Functionality-Overall. The return rate is 0.6%.
- **What does it cost to enter the onion hydrosol shampoo niche?**
- Listings span $16.87–$39.28; the average listing price is $31.13 (sweet spot $15–$100). The average incumbent carries 6,959 reviews — the moat a new listing must climb.
## **Related niches in Beauty & Personal Care**
- 75 [**bio oil lotion**](https://flapen.com/research/us/beauty-personal-care/bio-oil-lotion)$654K/yr+95.9%**Worth a look**- 75 [**glossier futuredew serum**](https://flapen.com/research/us/beauty-personal-care/glossier-futuredew-serum)$344K/yr+383.6%**Worth a look**- 75 [**press on toenails**](https://flapen.com/research/us/beauty-personal-care/press-on-toenails)$2.4M/yr+79.4%**Launch it**- 75 [**skulta deep peptide eye mask**](https://flapen.com/research/us/beauty-personal-care/skulta-deep-peptide-eye-mask)$58K/yr>1,000%**Worth a look**- 75 [**mineral sunscreen spray**](https://flapen.com/research/us/beauty-personal-care/mineral-sunscreen-spray)$3.8M/yr+183.8%**Launch it**- 76 [**collagen oil**](https://flapen.com/research/us/beauty-personal-care/collagen-oil)$344K/yr+116.2%**Worth a look**[**All Beauty & Personal Care niches **](https://flapen.com/research/us/beauty-personal-care)