Is black seed oil capsule profitable to sell on Amazon United Kingdom?

The niche generates £116K/yr across 12 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -17.1%. Flapen's verdict: Skip it (44/100).

How competitive is the black seed oil capsule niche?

9 brands and 11 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in black seed oil capsule?

Top complaints mined from reviews: Taste-Overall, Size-Overall, Side Effects. The return rate is 0.1%.

When does demand for black seed oil capsule peak?

Demand peaks in Apr; the busiest month runs 1.5× the quietest.

What does it cost to enter the black seed oil capsule niche?

Listings span £6.66–£22.53; the average listing price is £11.98 (sweet spot $15–$100). The average incumbent carries 5,870 reviews — the moat a new listing must climb.

black seed oil capsule

Skip it

Soft demand (-17.1% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great9.7%

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

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Avg price

Good£11.98

avg listing price — sweet spot $15–$100

Price range

Okay£6.66–£22.53

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

Brand share

Okay78%

top-5 brand share — brands hold most of the demand

Market size

Okay£116K

£116K/yr · 100K searches

Competition

Bad71%

top-5 click share — a locked-up shelf

Review moat

Bad5,869.92

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-17.1%

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

According to Flapen's Amazon United Kingdom niche tracking, black seed oil capsule is a £116K/yr Amazon United Kingdom market (100K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Apr. Verdict: Skip it — 44/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

black seed oil capsule market data

Units sold / yr: 8K–10K; avg 750–1,000/product
Revenue / yr: £96K–£120K; units × avg price
Conversion rate: 9.7%
Avg BSR: #117
Page quality: 0%
Prime: 100%
Sponsored: 92%
Out of stock: 7.7%
Avg brand age: 34 months
Avg seller age: 184 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

15%

Inner Vitality31%
ALPHA0123%
Healths Harmony9%
iman products8%
HealthEssent8%
Horbäach7%
Open — no brand owns it (3 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.1% search growth over the last 90 days.

Peak months: Apr · busiest ÷ quietest = 1.5×

Open Trend

Top black seed oil capsule search terms

black seed oil capsule47K/yr -29.0%8.9% conv.
black seed oil capsules21K/yr -17.0%5.6% conv.
black seed oil capsules high strength5K/yr +153.6%7.7% conv.
thymoquinone6K/yr -20.8%2.9% conv.
blackseed oil organic capsules5K/yr -24.2%9.2% conv.
black seed oil organic cold pressed capsules6K/yr -18.7%8.0% conv.
black cumin seed oil capsules6K/yr -31.3%8.7% conv.
organic black seed oil capsules3K/yr -17.8%8.6% conv.

All search terms

Top black seed oil capsule 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 12 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Black Seed Oil 120 Double Strength Capsules - Premium Cold Pressed Virgin Oil High Strength Thymoquenine 3X% | 1000mg Softgels with Zero Additives (Non-GMO) Made in UK by Inner Vitality

Inner Vitality£13.034.6★1,678 rev

Organic Black Seed Oil Capsules 1440mg 3X% Thymoquenine - 60 Vegan Capsules Cold Pressed & Virgin Cumin Seed Oil by Alpha01

ALPHA01£6.664.5★484 rev

Healths Harmony£12.394.5★51,878 rev

IMAN High Strength Virgin Cold Pressed Black Seed Oil (180 Capsules) | 6X% TQ Omega 3 6 & 9 | Non-GMO Natural & 100% Pure | 6 Month Supply | Trusted Brand Since 1995

iman products£14.804.4★484 rev

Black Seed Oil Capsule 1000mg Cold Pressed 20mg Thymoquinone High Strength Black Cumin Seed Oil for Blood Sugar and Cholesterol - Natural Anti-Inflammatory Antioxidant (4 Month Supply)120 Softgels

HealthEssent£8.304.4★128 rev

Newest

by launch date

Orzax Black Seed Oil 1000 mg with 20 MG Thymoquinone Nigella Sativa Cold Pressed 400 Softgels 200 Days Supply

ORZAX£22.534,237 rev

3mo ago

Healths Harmony£12.3951,878 rev

11mo ago

Black Seed Oil Capsule 1000mg Cold Pressed 20mg Thymoquinone High Strength Black Cumin Seed Oil for Blood Sugar and Cholesterol - Natural Anti-Inflammatory Antioxidant (4 Month Supply)120 Softgels

HealthEssent£8.30128 rev

1y ago

ORZAX Black Seed Oil Capsules 1000mg - High Strength 20mg Thymoquinone - 60 Cold Pressed Nigella Sativa Softgels - Supports Immune Hair Skin and Joint Health

ORZAX£11.524,237 rev

2y ago

Black Seed Oil 1000mg - 180 Softgels - 6 Months Supply - Cold Pressed Black Cumin Seed Oil Capsules - 1-a-Day - Vegan-Friendly - Source of Thymoquinone & Omega Fatty Acids - Nigella Sativa Supplement

WeightWorld£11.221,464 rev

2y ago

What buyers say about black seed oil capsule

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

What buyers love

Quality-Overall25%

“Good mid quality”

Value For Money10%

“Very nice quantity”

Ease Of Chewing/Swallowing7%

“Easy to swallow”

Advertised Vs Actual Product6%

“is as advertised”

Ease Of Use5%

“Ease of use”

Efficiency5%

“Its effective dont want to claim anything”

Taste-Overall5%

“there's no nasty aftertaste”

Regulates Digestion4%

“Really helps with keeping the bowels regulated”

Side Effects3%

“Too soon to feel any effects”

Nutritional Content3%

“It has proven health promoting properties”

What buyers complain about

Taste-Overall12%

“Strong taste”

Size-Overall7%

“Huge capsule”

Side Effects7%

“Had to stop taking this as it caused bad heartburn which is apparently a side effect”

Oily/Greasy7%

“oil”

Advertised Vs Actual Product6%

“Description on Amazon does not match the bottle”

Quality-Overall6%

“It feels cheap”

Dosage6%

“its been a while I have been taking them”

Heating3%

“Knees aren't getting as hot too”

Joint Pain3%

“Tbt, I have noticed a different in my joint movement”

Smell2%

“it's a faint fish oil smell”

Common questions

Is black seed oil capsule profitable to sell on Amazon United Kingdom?: The niche generates £116K/yr across 12 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -17.1%. Flapen's verdict: Skip it (44/100).
How competitive is the black seed oil capsule niche?: 9 brands and 11 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in black seed oil capsule?: Top complaints mined from reviews: Taste-Overall, Size-Overall, Side Effects. The return rate is 0.1%.
When does demand for black seed oil capsule peak?: Demand peaks in Apr; the busiest month runs 1.5× the quietest.
What does it cost to enter the black seed oil capsule niche?: Listings span £6.66–£22.53; the average listing price is £11.98 (sweet spot $15–$100). The average incumbent carries 5,870 reviews — the moat a new listing must climb.