Is b12 liquid profitable to sell on Amazon United Kingdom?

The niche generates £93K/yr across 16 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -32.6%. Flapen's verdict: Skip it (43/100).

How competitive is the b12 liquid niche?

15 brands and 39 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 80% of demand.

What do buyers complain about in b12 liquid?

Top complaints mined from reviews: Taste-Overall, Dosage, Functionality-Overall. The return rate is 0.1%.

When does demand for b12 liquid peak?

Demand peaks in Sep–Oct; the busiest month runs 2.6× the quietest.

What does it cost to enter the b12 liquid niche?

Listings span £6.27–£20.54; the average listing price is £12.85 (sweet spot $15–$100). The average incumbent carries 1,539 reviews — the moat a new listing must climb.

b12 liquid

Skip it

Soft demand (-32.6% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great9.1%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good£12.85

avg listing price — sweet spot $15–$100

Review moat

Okay1,538.63

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay80%

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

Price range

Okay£6.27–£20.54

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

Market size

Bad£93K

£93K/yr · 79K searches

Competition

Bad75%

top-5 click share — a locked-up shelf

Growth

Bad-32.6%

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

According to Flapen's Amazon United Kingdom niche tracking, b12 liquid is a £93K/yr Amazon United Kingdom market (79K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 43/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

b12 liquid market data

Units sold / yr: 8K–10K; avg 250–500/product
Revenue / yr: £103K–£129K; units × avg price
Conversion rate: 9.1%
Avg BSR: #44
Page quality: 0%
Prime: 100%
Sponsored: 81%
Out of stock: 5.9%
Avg brand age: 58 months
Avg seller age: 177 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

15 rising

Sellers

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

17%

ALPHA0139%
Nature Provides16%
Vivo life14%
GMOLARSUSCO5%
Flowzuk5%
Horbäach3%
Open — no brand owns it (9 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -32.6% search growth over the last 90 days.

Peak months: Sep, Oct · busiest ÷ quietest = 2.6×

Open Trend

Top b12 liquid search terms

b12 drops43K/yr -33.8%10.7% conv.
liquid b1212K/yr -29.8%7.5% conv.
b12 liquid9K/yr -40.9%9.0% conv.
vitamin b12 drops6K/yr -39.0%10.4% conv.
b12 liquid drops4K/yr -21.8%10.7% conv.
vitamin b12 liquid4K/yr -0.1%8.3% conv.

All search terms

Top b12 liquid 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 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Vitamin B12 Liquid Drops 3000mcg - 60ml (2 Months Supply) - High Strength Methylcobalamin Supplement - Vegan & Vegetarian Friendly - By Alpha01

ALPHA01£7.454.3★519 rev

Vitamin B12 Liquid Drops 5000mcg - 60ml (2 Months Supply) - High Strength Methylcobalamin Supplement - Vegan & Vegetarian Friendly - By Alpha01

ALPHA01£8.204.3★519 rev

Nature Provides B12 Liquid Methylcobalamin Adenosylcobalamin 3000mcg 50ml

Nature Provides£20.014.5★3,036 rev

Vivo Life Vitamin B12 Complex High Potency Health Supplement Orange Flavour Liquid Drops 60ml 60 Servings

Vivo life£13.564.4★750 rev

Vitamin B12 Liquid Drops with B6 Sublingual Methylcobalamin B12 Supplement High Strength B Complex Energy Metabolism & Daily Wellness SupportRaspberry Flavor

GMOLARSUSCO£9.914.1★29 rev

Newest

by launch date

Vitamin B12 Liquid Drops with B6 Sublingual Methylcobalamin B12 Supplement High Strength B Complex Energy Metabolism & Daily Wellness SupportRaspberry Flavor

GMOLARSUSCO£9.9129 rev

4mo ago

Vitamatic Fast-Acting Liquid Vitamin B12 5000 mcg Methylcobalamin Natural Berry Flavor Sublingual Formula for Enhanced Absorption 2 fl oz

Vitamatic£10.9398 rev

10mo ago

Vitamin B Complex Liquid Drops 60ml High Strength B-Vitamin Complex Drops Vitamin B3 B6 B12 B1& Folate Supports Immune System and Energy Levels Brain Heart Function (60ML)

zoxpm£8.9398 rev

11mo ago

Vitamin B12 Liquid Drops 5000mcg - 60ml (2 Months Supply) - High Strength Methylcobalamin Supplement - Vegan & Vegetarian Friendly - By Alpha01

ALPHA01£8.20519 rev

2y ago

Flowzuk Vitamin B12 Liquid Drops 5000mcg High Strength Methylcobalamin Fast Absorbing Vegan B12 Supplement 60ml Dropper Bottle Gluten Free Energy & Wellness Support

Flowzuk£20.54158 rev

3y ago

What buyers say about b12 liquid

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

What buyers love

Vitamin13%

“Vitamins, easy to swallow good amount of supply”

Value For Money12%

“Good price”

Quality-Overall12%

“Great quality arrived on time thanks Amazon”

Ease Of Chewing/Swallowing7%

“The drops absorb quickly under the tongue and after 30 seconds, anything left you just swallow”

Ease Of Use6%

“Ease of use”

Energy Level6%

“a Noticeable Energy Boost”

Taste-Overall6%

“The raspberry flavour is genuinely pleasant”

Efficiency5%

“effective theyve been”

Advertised Vs Actual Product3%

“As advertised”

Nutritional Content3%

“Whilst my diet is very good”

What buyers complain about

Taste-Overall12%

“Tasteless small tablets”

Dosage12%

“No dosage instructions — unsafe and unacceptable labelling”

Functionality-Overall4%

“didn't work for me”

Side Effects4%

“Belly Cramps”

Calcium3%

“My B12 gone up”

Vitamin3%

“I assume there maybe issues with my absorption of this vitamin”

Sweetness3%

“I cannot tolerate artificial sweeteners”

Advertised Vs Actual Product2%

“NO TITLE”

Value For Money2%

“Too expensive, Savers £4 cheaper”

Blood Sugar Level2%

“I have to have regular blood tests as I am diabetic”

Common questions

Is b12 liquid profitable to sell on Amazon United Kingdom?: The niche generates £93K/yr across 16 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -32.6%. Flapen's verdict: Skip it (43/100).
How competitive is the b12 liquid niche?: 15 brands and 39 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in b12 liquid?: Top complaints mined from reviews: Taste-Overall, Dosage, Functionality-Overall. The return rate is 0.1%.
When does demand for b12 liquid peak?: Demand peaks in Sep–Oct; the busiest month runs 2.6× the quietest.
What does it cost to enter the b12 liquid niche?: Listings span £6.27–£20.54; the average listing price is £12.85 (sweet spot $15–$100). The average incumbent carries 1,539 reviews — the moat a new listing must climb.