Is castor oil for eyelashes profitable to sell on Amazon United Kingdom?

The niche generates £82K/yr across 9 tracked products. 90-day search growth is -23.8%. Flapen's verdict: Skip it (32/100).

How competitive is the castor oil for eyelashes niche?

7 brands and 25 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 96% of demand.

What do buyers complain about in castor oil for eyelashes?

Top complaints mined from reviews: Thickness, Smell, Eyelash Quality. The return rate is 0.1%.

When does demand for castor oil for eyelashes peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the castor oil for eyelashes niche?

Listings span £3.34–£10.50; the average listing price is £6.12 (sweet spot $15–$100). The average incumbent carries 20,429 reviews — the moat a new listing must climb.

castor oil for eyelashes

Skip it

Prices mostly outside the sweet spot ($3.34–$10.50) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible13.1%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad£82K

£82K/yr · 103K searches

Avg price

Bad£6.12

avg listing price — sweet spot $15–$100

Review moat

Bad20,429

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-23.8%

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

Brand share

Bad96%

top-5 brand share — brand-locked demand

Competition

Bad90%

top-5 click share — a locked-up shelf

Price range

Bad£3.34–£10.50

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

According to Flapen's Amazon United Kingdom niche tracking, castor oil for eyelashes is a £82K/yr Amazon United Kingdom market (103K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 32/100.

Data updated Jul 20, 2026 · scored weekly · How we score niches

castor oil for eyelashes market data

Units sold / yr: 13K–15K; avg 1,000–1,250/product
Revenue / yr: £77K–£92K; units × avg price
Conversion rate: 13.1%
Avg BSR: #22
Page quality: 0%
Prime: 100%
Sponsored: 78%
Out of stock: 0.0%
Avg brand age: 43 months
Avg seller age: 154 days

Competition & brand share

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

KANZY HAIR AND BEAUTY48%
ETRONG30%
BIONOBLE8%
Prolixir8%
Forest & Shore3%
Fushi2%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -23.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top castor oil for eyelashes search terms

castor oil for eyelashes44K/yr -34.2%13.3% conv.
castor oil for eyebrows12K/yr -19.0%11.3% conv.
brow oil6K/yr -1.9%6.5% conv.
lash oil7K/yr +5.3%5.7% conv.
eyebrow oil5K/yr -9.8%6.9% conv.
castor oil eyebrows5K/yr -19.9%15.1% conv.
castor oil eyelashes5K/yr -23.3%14.0% conv.
eyelash oil4K/yr -8.1%9.8% conv.
castor oil for lashes4K/yr -34.0%12.5% conv.
eyebrow oil after lamination3K/yr -5.3%10.8% conv.

All search terms

Top castor oil for eyelashes 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kanzy Castor Oil for Eyelashes and Eyebrows 50ml Cold Pressed for Hair Growth 100% Natural and Pure with Brushes for Hair Beard Nails and Skin

KANZY HAIR AND BEAUTY£4.824.5★46,493 rev

ETRONG Organic Castor Oil Pure Cold Pressed Castor Oil for Eyebrows Eyelashes Hair Growth Nails and Skin with 1 Set of Eyebrow&Eyeliner Brushes (10 ml)

ETRONG£3.504.4★10,319 rev

Kanzy Castor Oil for Eyelashes and Eyebrows 100ml Cold Pressed Castor Oil for Hair Growth 100% Natural and Pure Oil with Brushes For Hair Beard Nails and Skin

KANZY HAIR AND BEAUTY£5.624.5★46,493 rev

BIONOBLE Organic Castor Oil Cold Pressed + Mascara Kit - Hexane Free 100% Natural - Pure Castor Oil Organic for Eyelashes Hair Growth Eyebrows Skin Face - Glass Bottle Pipette and Pump - 50ml

BIONOBLE£10.504.5★61,933 rev

Prolixir Organic Castor Oil for lashes & Brows Cold Pressed Lash & Brow Growth Repair & Conditioning Oil with Vitamin E Precision Applicators For Fuller Looking Lashes Brows Hair & Nails 60ml

Prolixir£7.864.3★512 rev

Newest

by launch date

Tisserand - Organic Castor Oil - 100% Natural Pure - Moisturising Massage Nails Skin and Hair Oil - Earthy and Grounding Aroma - Comes in Recycable Bottle - 100ml

Tisserand£3.34139 rev

1y ago

Prolixir Organic Castor Oil for lashes & Brows Cold Pressed Lash & Brow Growth Repair & Conditioning Oil with Vitamin E Precision Applicators For Fuller Looking Lashes Brows Hair & Nails 60ml

Prolixir£7.86512 rev

2y ago

Forest & Shore Castor Oil 100% Natural & Organic for Hair Growth Eyebrows Eyelashes and Skin Hair Tonic Oil

Forest & Shore£7.691,942 rev

3y ago

Kanzy Castor Oil for Eyelashes and Eyebrows 50ml Cold Pressed for Hair Growth 100% Natural and Pure with Brushes for Hair Beard Nails and Skin

KANZY HAIR AND BEAUTY£4.8246,493 rev

5y ago

Kanzy Castor Oil for Eyelashes and Eyebrows 100ml Cold Pressed Castor Oil for Hair Growth 100% Natural and Pure Oil with Brushes For Hair Beard Nails and Skin

KANZY HAIR AND BEAUTY£5.6246,493 rev

5y ago

What buyers say about castor oil for eyelashes

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

What buyers love

Quality-Overall38%

“Seems to be good quality oil”

Value For Money13%

“Good value for money”

Eyelash Quality6%

“this has actually grown my lashes”

Advertised Vs Actual Product4%

“As described”

Thickness4%

“Great for thickness of eyelashes”

Ease Of Application3%

“Easy application”

Moist/Dry2%

“Excellent moisturiser which i use on my face mainly”

Smell2%

“I normally go for nice smelly products”

Suitability Combination Skin2%

“Great product - game changer for complexion”

Oily/Greasy2%

“Great oil”

What buyers complain about

Thickness11%

“This is thick oil”

Smell8%

“It doesnt smell very nice”

Eyelash Quality8%

“given the consistency I could not apply it successfully to my eyelashes without getting it into my eyes”

Oily/Greasy6%

“It is initially greasy when applied”

Leak-Proof5%

“lid on mascara bottle not leak proof though so wouldnt put it in handbag or makeup bag”

Ease Of Cleaning5%

“Messy”

Ease Of Use4%

“Dont use neat”

Advertised Vs Actual Product3%

“False advertising”

Allergies3%

“It irritated my eyes”

Size-Overall3%

“Photo lied it's do much smaller”

Top return reasons

Leak-Proof31%

Size-Overall11%

Quality-Overall10%

Defective Material/Parts8%

Functionality-Overall8%

Oily/Greasy7%

Product Condition5%

Contamination4%

Ease Of Use3%