Is niacinamide toothpaste profitable to sell on Amazon United Kingdom?

The niche generates £48K/yr across 19 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -47.0%. Flapen's verdict: Skip it (44/100).

How competitive is the niacinamide toothpaste niche?

17 brands and 31 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 73% of demand.

What do buyers complain about in niacinamide toothpaste?

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

When does demand for niacinamide toothpaste peak?

Demand peaks in Jun–Jul–Aug–Sep; the busiest month runs 4.6× the quietest.

What does it cost to enter the niacinamide toothpaste niche?

Listings span £2.91–£18.16; the average listing price is £7.73 (sweet spot $15–$100). The average incumbent carries 1,549 reviews — the moat a new listing must climb.

niacinamide toothpaste

Skip it

Soft demand (-47.0% this quarter) — this niche doesn't clear our bar today.

Quality gap

Incredible3.5★

avg incumbent rating — lower means beatable quality

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great7.6%

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

Brand share

Good73%

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

Review moat

Okay1,548.68

avg incumbent reviews — the moat a new listing must climb

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Avg price

Bad£7.73

avg listing price — sweet spot $15–$100

Price range

Bad£2.91–£18.16

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

Market size

Bad£48K

£48K/yr · 83K searches

Growth

Bad-47.0%

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

Signals Quality Gap Out of Stock

According to Flapen's Amazon United Kingdom niche tracking, niacinamide toothpaste is a £48K/yr Amazon United Kingdom market (83K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Jun–Jul–Aug–Sep. Verdict: Skip it — 44/100.

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

niacinamide toothpaste market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: £46K–£62K; units × avg price
Conversion rate: 7.6%
Avg BSR: #933
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 57.7%
Avg brand age: 31 months
Avg seller age: 156 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 falling

Sellers

Top-5 brand share

73%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

22%

BodyAccel30%
CCKULOOB16%
DEJIN10%
BAOXIAOBEN10%
KoolShiro7%
Generic5%

Demand & seasonality

Weekly Amazon search volume, last 62 weeks — -47.0% search growth over the last 90 days.

Peak months: Jun, Jul, Aug, Sep · busiest ÷ quietest = 4.6×

Open Trend

Top niacinamide toothpaste search terms

niacinamide toothpaste41K/yr -56.4%7.1% conv.
bodyaccel niacinamide whitening toothpaste8K/yr -25.2%5.5% conv.
body accel niacinamide whitening toothpaste6K/yr -0.2%8.1% conv.
niacinamide whitening toothpaste18K/yr -58.8%5.7% conv.
nicotinamide toothpaste3K/yr -46.2%7.7% conv.
nicotinamide whitening toothpaste832/yr -58.4%15.6% conv.
radiant whitening toothpaste6K/yr -83.8%8.3% conv.

All search terms

Top niacinamide toothpaste 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 19 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

BodyAccel Niacinamide Whitening Toothpaste Intensive Stain Removal Natural Gentle Formula for Teeth Whitening & Gum Care Fresh Breath Fluoride-Free (1 Pack)

BodyAccel£13.333.2★7,732 rev

Niacinamide Whitening Toothpaste 100g - Niacinamide Toothpaste Stain Removal Gentle on Sensitive Teeth & Gums Fluoride-Free Natural Enzymes Dentist-Developed for Coffee & Tea Lovers

CCKULOOB£6.473.3★141 rev

DEJIN 2Pcs Niacinamide Whitening Toothpaste - Intensive Stain Removal Gentle Formula for Teeth Whitening & Gum Care Fresh Breath Fluoride-Free 200g

DEJIN£8.403.4★97 rev

Niacinamide Whitening Toothpaste 100g Niacinamide Toothpaste to Enamel Repair Fresh Breath Sensitive Teeth Safe Stain Removal & Gum Care for Coffee/Tea/Smokers (1 PC)

BAOXIAOBEN£5.283.5★46 rev

BodyAccel Niacinamide Whitening Toothpaste Intensive Stain Removal Natural Gentle Formula for Teeth Whitening & Gum Care Fresh Breath Fluoride-Free (2 Pack)

BodyAccel£18.163.2★7,732 rev

Newest

by launch date

Niacinamide Whitening Toothpaste 100g Niacinamide Intensive Teeth Whitening Toothpaste Stain Removal Complete Care Repair and Protect Teeth Freshes Breath and Brightens Tooth (100g(Pack of 1))

YUEPLATTNMAY£4.132 rev

2mo ago

XdealCozyxc 3 Pack Niacinamide Whitening Toothpaste Fluoride-Free Teeth Whitening Toothpaste for Sensitive Oral Care & Fresh Breath

XdealCozyxc£9.612 rev

4mo ago

2PCS Whitening Toothpaste Niacinamide Teeth Whitening Toothpaste for Stain Removal Deep Cleaning & Enamel Care Daily Complete Care for Bright Teeth Fresh Breath

SHEBEEDO£7.693 rev

4mo ago

VLUVLA 3Pcs Niacinamide Whitening Toothpaste 100g Teeth Whitening Toothpaste for Adults Deep Stain Removal Enamel Care Fresh Breath Daily Oral Care

VLUVLA£9.8511 rev

7mo ago

2026 New Upgraded Niacinamide Whitening Toothpaste for Adults Teeth Whitening Tooth Paste Brilliant Smile Niacinamide Toothpaste Whiten (3.53oz)

OIFVOPU£7.371 rev

9mo ago

What buyers say about niacinamide toothpaste

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

What buyers love

Tooth Brightening15%

“it does help cut down stains on teeth”

Quality-Overall12%

“Excellent product”

Cleansing10%

“Squeaky clean”

Taste-Overall10%

“It tastes pretty good”

Value For Money9%

“Definitely value for your money”

Oral Hygiene5%

“your teeth feel clean”

Smell5%

“my breath smells incredible”

Advertised Vs Actual Product4%

“Better than expected”

Toxic/Chemical Free3%

“Nice to use fluoride free”

Ease Of Use2%

“pleasant to use”

What buyers complain about

Functionality-Overall14%

“Don't work”

Taste-Overall13%

“Also has an odd taste”

Value For Money13%

“Double the price all of a sudden”

Oral Hygiene11%

“Was expecting somthing good instead no difference than any other tootbpaste infacted my oral b intence white does a better job very annoyed as its expensive wont buy again”

Smell8%

“Couldnt stand the strange smell”

Tooth Brightening7%

“Not a whitening tooth paste”

Advertised Vs Actual Product7%

“False advertisement”

Color4%

“does not white”

Satisfaction/Pleasure2%

“Not satisfied”

Stale/Rotten/Spoiled2%

“Rubbish”

Top return reasons

Advertised Vs Actual Product40%

Functionality-Overall20%

Flavor10%

Ethical Trade/Fair Trade10%