Is castor oil gallon profitable to sell on Amazon United States?

The niche generates $111K/yr across 7 tracked products. 90-day search growth is +13.7%. Flapen's verdict: Skip it (46/100).

How competitive is the castor oil gallon niche?

6 brands and 7 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 96% of demand.

What do buyers complain about in castor oil gallon?

Top complaints mined from reviews: Functionality-Overall, Smell, Pest/Insect Control. The return rate is 0.9%.

When does demand for castor oil gallon peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the castor oil gallon niche?

Listings span $19.45–$36.37; the average listing price is $30.77 (sweet spot $15–$100). The average incumbent carries 4,196 reviews — the moat a new listing must climb.

castor oil gallon

Skip it

A concentrated shelf (top 5 take 93% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Avg price

Incredible$30.77

avg listing price — sweet spot $15–$100

Price range

Incredible$19.45–$36.37

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great9.3%

search→purchase rate — share of searches ending in a sale

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Okay+13.7%

90-day search growth — must beat 0% to launch

Market size

Okay$111K

$111K/yr · 39K searches

Review moat

Bad4,195.86

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad96%

top-5 brand share — brand-locked demand

Competition

Bad93%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, castor oil gallon is a $111K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 46/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

castor oil gallon market data

Units sold / yr: 3K–4K; avg 250–500/product
Revenue / yr: $92K–$123K; units × avg price
Conversion rate: 9.3%
Avg BSR: #163
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 14.7%
Avg brand age: 68 months
Avg seller age: 183 days

Competition & brand share

The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 flat

Sellers

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

93%

Top 20: 100%

Open market

GreenIVe33%
velona31%
US+14%
Natural Elements14%
Naturevibe Botanicals4%
Petra4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +13.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top castor oil gallon search terms

castor oil gallon14K/yr +23.8%9.3% conv.
castor oil bulk11K/yr +3.0%6.8% conv.
castor oil 1 gallon4K/yr +15.3%10.3% conv.
bulk castor oil4K/yr +19.9%6.4% conv.
gallon castor oil3K/yr +13.5%10.8% conv.
castor oil gallon size3K/yr -6.1%11.1% conv.

All search terms

Top castor oil gallon 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

GreenIVe 100% Pure Castor Oil Cold-Pressed Hexane-Free Hair Eyebrows Eyelashes Skin Moisturizer Castor Pack Wrap Oil Bulk Bottle (1 Gallon)

GreenIVe$33.874.6★17,935 rev

velona USDA Certified Organic Castor Oil - 64 fl oz | For Hair Boost Eyelashes Eyebrows | Cold pressed Natural Oil USP Grade | Hexane Free

velona$28.894.7★616 rev

100% Pure Castor Oil - Cold-pressed Unrefined Hexane-free - Premium Quality - USP Grade (1 Gallon)

US+$33.704.7★5,414 rev

Natural Elements Mole and Vole Repellent 100% Castor Oil Formula Lawn and Yard Treatment Covers Large Areas 128 oz (1 Gallon)

Natural Elements$36.374.0★3,348 rev

velona USDA Certified Organic Castor Oil - 1 Gallon / 128 Fl Oz | For Hair Boost Eyelashes Eyebrows | Cold pressed Natural Oil USP Grade | Hexane Free

velona$35.764.7★166 rev

Newest

by launch date

PetraMax Castor Oil Mole Repellent for Lawns - Best Anti Mole and Vole Repellent of Outdoor Space - How to Get Rid of Moles in My Yard Garden Or Lawn Safe and Effective Vole Deterrent (33.8 fl oz)

Petra$27.35601 rev

2y ago

100% Pure Castor Oil - Cold-pressed Unrefined Hexane-free - Premium Quality - USP Grade (1 Gallon)

US+$33.705,414 rev

5y ago

Naturevibe Botanicals Castor Oil 32 oz 100% Pure Cold-Pressed & Hexane-Free | Natural Hair Skin & Lash Oil | Vegan Non-GMO | Great for Hair Growth Brows Eyelashes & Skin Care

Naturevibe Botanicals$19.451,291 rev

6y ago

Natural Elements Mole and Vole Repellent 100% Castor Oil Formula Lawn and Yard Treatment Covers Large Areas 128 oz (1 Gallon)

Natural Elements$36.373,348 rev

6y ago

GreenIVe 100% Pure Castor Oil Cold-Pressed Hexane-Free Hair Eyebrows Eyelashes Skin Moisturizer Castor Pack Wrap Oil Bulk Bottle (1 Gallon)

GreenIVe$33.8717,935 rev

7y ago

What buyers say about castor oil gallon

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall30%

“This castor oil is excellent quality”

Value For Money17%

“Fair price”

Pest/Insect Control10%

“Quality Yard Pest Control”

Ease Of Use4%

“Very easy to use”

Oily/Greasy4%

“It's good Castor oil”

Efficiency3%

“Work well to get rid off the moles and voles”

Advertised Vs Actual Product3%

“Exceeded expectations”

Smell3%

“Not very stinky”

Instructions/User Manual/Troubleshooting3%

“Easy instruction and applied to holes in yards for voles”

Suitability Combination Skin3%

“All natural a penetrate deep the skin no side effect money fragrance free good for your hair”

What buyers complain about

Functionality-Overall30%

“it did not work in the slightest”

Smell9%

“RANCID SMELL”

Pest/Insect Control7%

“Doesn't get rid of moles or voles”

Size-Overall7%

“Super Small Bottle”

Advertised Vs Actual Product6%

“Nothing like the ones on the website”

Spray/Flow4%

“so the sprayer was unusable”

Plant Growth4%

“While it didn't eliminate all the moles from my garden beds”

Oily/Greasy3%

“5 times I washed my hair and it's still greasy and sticky and just bad”

Value For Money3%

“I wasted my money”

Ease Of Use3%

“Too bad I can't use it for anything other than mole repellant”

Top return reasons

Leak-Proof24%

Advertised Vs Actual Product14%

Size-Overall14%

Functionality-Overall13%

Smell8%

Value For Money4%

Pest/Insect Control3%

Defective Material/Parts3%