---
title: "Castor Oil — $18.3M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/castor-oil"
last_updated: "2026-08-11T22:14:24.612Z"
locale: en
meta:
description: "Niche score 61/100 · $18.3M/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 61/100 · $18.3M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Castor Oil — $18.3M/yr Amazon US Niche (2026) - Flapen"
---
# **castor oil**
**Worth a look**
Shows a $18.3M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 21Conversion 84Competition 44Returns 97Price range 72Avg price 86Brand share 67Review moat 16Quality gap 23
**Market size**
**Incredible****$18.3M**
$18.3M/yr · 10.2M searches
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$19.24**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****9.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$7.02–$35.93**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-7.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****20,662.25**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, castor oil is a $18.3M/yr Amazon United States market (10.2M searches/yr). The top 5 brands hold 65% of demand. Verdict: Worth a look — 61/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **castor oil market data**
- **Units sold / yr**
- **1.0M–1.0M**
- avg 40,000–50,000/product
- **Revenue / yr**
- **$19.2M–$19.2M**
- units × avg price
- **Conversion rate**
- **9.3%**
- **Avg BSR**
- **#51**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **92%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **143 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▲rising
**Sellers**
**62**
**Top-5 brand share**
**65%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 95%
**Open market**
**29%**
- Handcraft Blends20% - HERITAGE STORE15% - Kate Blanc Cosmetics13% - Essentially KateS9% - Majestic Pure8% - Florisan7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.1% search growth over the last 90 days.
300K200KHoliday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/castor-oil/trend)
## **Top castor oil search terms**
- **castor oil**4.9M/yr-5.3%9.0% conv. - **castor oil organic cold pressed**656K/yr+110.5%9.3% conv. - **organic castor oil**973K/yr+11.4%8.4% conv. - **aceite de ricino**389K/yr-25.0%2.9% conv. - **castor oil organic**1.1M/yr-74.8%8.6% conv. - **caster oil**207K/yr-0.4%8.8% conv. - **aceite de ricino 100 puro y natural**228K/yr-22.1%2.3% conv. - **castor oil for hair growth**231K/yr-35.3%4.7% conv. - **cold pressed organic castor oil**145K/yr-34.1%8.5% conv. - **cold pressed castor oil**163K/yr-7.9%8.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/castor-oil/search-terms)
## **Top castor oil 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%$914K10%$1.8M15%$2.7M20%$3.7M1K10K100K1.0M 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**Handcraft Blends Organic Castor Oil 16 Fl Oz | 100% Pure and Natural | Premium Grade Carrier Oil | Hair Eyelashes and Eyebrows | Hair and Body | Expeller-Pressed | Hexane-Free**Handcraft Blends**$9.79**4.6★57,050 rev](https://www.amazon.com/dp/B0734849YK) [2**Kate Blanc Cosmetics Castor Oil Organic for Hair Lashes Face Skin (2oz) 100% Pure Cold Pressed Hexane Free Hair Oil. Lash Serum for Thicker-Looking Eyelashes & Eyebrows**Kate Blanc Cosmetics**$8.68**4.5★118,169 rev](https://www.amazon.com/dp/B01NALN8Q9) [3**HERITAGE STORE Organic Castor Oil - Glass Bottle - Nourishing Treatment for Hair and Skin - Eyelash Serum for Eyelashes Brows Castor Oil Packs - Cold Pressed Hexane Free Vegan 16oz**HERITAGE STORE**$18.66**4.8★25,244 rev](https://www.amazon.com/dp/B0013YYNDM) [4**Majestic Pure Oil - 100% Pure and Natural- Cold Pressed & Hexane Free Natural Hair Growth Oil for Eyelashes Eyebrows Skin Body Face Nails & Scalp - USDA Organic Castor Oil 8 Fl Oz**Majestic Pure**$7.95**4.6★3,767 rev](https://www.amazon.com/dp/B0C6Y478R5) [5**Essentially KateS Castor Oil 16 Fl Oz (Glass Bottle) - Original - A Huge Glass Bottle with a Pump - 100% Pure and Natural Cold Pressed and Hexane-Free - Hair and Body**Essentially KateS**$9.74**4.7★6,088 rev](https://www.amazon.com/dp/B0DJMJS2Y3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Essentially KateS Castor Oil 16 Fl Oz (Glass Bottle) - 100% Cold Pressed - USDA Organic Certified - Skin Care Nail Care Hair Care and Body Care**Essentially KateS**$14.54**6,088 rev9mo ago](https://www.amazon.com/dp/B0FTZX8TMS) [**Brooklyn Botany Cold-Pressed Organic Castor Oil | 16 Fl Oz | Hair | Face | Body | 100% Pure and Natural | Carrier Oil | Aromatherapy | Massage | Ayurvedic Hair Care | Hexane-Free**Brooklyn Botany**$9.87**9,688 rev1y ago](https://www.amazon.com/dp/B0F6796RPP) [**Ella & Eden USDA Organic Castor Oil 100% Pure Cold Pressed Hexane-Free - Glass Bottle - For Hair Growth Face Eyelash Skin Stomach - Unrefined 16 Fl Oz**Ella & Eden**$26.55**1,423 rev1y ago](https://www.amazon.com/dp/B0DP31GV6L) [**Ella & Eden Organic Castor Oil Cold-Pressed Hexane-Free 32 fl oz**Ella & Eden**$24.81**1,022 rev1y ago](https://www.amazon.com/dp/B0DNRC96FM) [**Florisan USDA Certified Organic Castor Oil 16oz Glass Bottle Cold Pressed Hexane-Free Non-GMO Vegan 100% Pure Castor Oil for Hair Growth Skin Lashes Eyebrows EWG Verified**Florisan**$24.22**1,822 rev1y ago](https://www.amazon.com/dp/B0D9PP29TJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Essentially KateS Castor Oil 16 Fl Oz (Glass Bottle) - 100% Cold Pressed - USDA Organic Certified - Skin Care Nail Care Hair Care and Body Care**Essentially KateS**$14.54**4.7★**▲ 138%**](https://www.amazon.com/dp/B0FTZX8TMS) [**Brooklyn Botany Cold-Pressed Organic Castor Oil | 16 Fl Oz | Hair | Face | Body | 100% Pure and Natural | Carrier Oil | Aromatherapy | Massage | Ayurvedic Hair Care | Hexane-Free**Brooklyn Botany**$9.87**4.6★**▲ 131%**](https://www.amazon.com/dp/B0F6796RPP) [**Florisan USDA Certified Organic Castor Oil 16oz Glass Bottle Cold Pressed Hexane-Free Non-GMO Vegan 100% Pure Castor Oil for Hair Growth Skin Lashes Eyebrows EWG Verified**Florisan**$24.22**4.7★**▲ 92%**](https://www.amazon.com/dp/B0D9PP29TJ) [**Majestic Pure Oil - 100% Pure and Natural- Cold Pressed & Hexane Free Natural Hair Growth Oil for Eyelashes Eyebrows Skin Body Face Nails & Scalp - USDA Organic Castor Oil 8 Fl Oz**Majestic Pure**$7.95**4.6★**▲ 60%**](https://www.amazon.com/dp/B0C6Y478R5) [**Ella & Eden USDA Organic Castor Oil 100% Pure Cold Pressed Hexane-Free - Glass Bottle - For Hair Growth Face Eyelash Skin Stomach - Unrefined 16 Fl Oz**Ella & Eden**$26.55**4.6★**▲ 41%**](https://www.amazon.com/dp/B0DP31GV6L)
**~~View all trending →~~**
## **What buyers say about castor oil**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**34%
*“Amazing Quality”*
**Value For Money**9%
*“fair price”*
**Advertised Vs Actual Product**6%
*“As Described”*
**Moist/Dry**6%
*“Great moisturizer”*
**Soft Feel**4%
*“Skin feels smooth”*
**Smell**4%
*“No strong odor”*
**Suitability Combination Skin**3%
*“Great for skin”*
**Oily/Greasy**3%
*“Very good oil”*
**Thickness**3%
*“Super thick”*
**Ease Of Use**3%
*“Goes on easy”*
### **What buyers complain about **
**Motor Power**12%
*“Pump was broken”*
**Leak-Proof**10%
*“Leaked”*
**Smell**10%
*“slight smell”*
**Thickness**8%
*“Not as thick as I expected”*
**Oily/Greasy**5%
*“left hair oily”*
**Advertised Vs Actual Product**4%
*“False Advertising”*
**Functionality-Overall**4%
*“The pump does not work”*
**Allergies**3%
*“Caused rash”*
**Adhesion/Stickiness**3%
*“EXTREMELY STICKY”*
**Size-Overall**2%
*“Bad small”*
### **Top return reasons **
**Leak-Proof**22%
**Advertised Vs Actual Product**13%
**Smell**11%
**Motor Power**11%
**Size-Overall**7%
**Oily/Greasy**7%
**Material Quality**5%
**Functionality-Overall**3%
**Value For Money**3%
**Defective Material/Parts**3%
## **Common questions**
- **Is castor oil profitable to sell on Amazon United States?**
- The niche generates $18.3M/yr across 24 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -7.1%. Flapen's verdict: Worth a look (61/100).
- **How competitive is the castor oil niche?**
- 18 brands and 62 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in castor oil?**
- Top complaints mined from reviews: Motor Power, Leak-Proof, Smell. The return rate is 0.7%.
- **When does demand for castor oil peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the castor oil niche?**
- Listings span $7.02–$35.93; the average listing price is $19.24 (sweet spot $15–$100). The average incumbent carries 20,662 reviews — the moat a new listing must climb.
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