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64

hikari teeth whitening powder

Worth a look

Shows demand growing >1,000% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 8Growth 100Conversion 81Competition 43Returns 99Price range 50Avg price 64Brand share 63Review moat 61Quality gap 84

Growth

Incredible>1,000%

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

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Great8.4%

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

Avg price

Good£13.70

avg listing price — sweet spot $15–$100

Brand share

Good67%

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

Review moat

Good1,062.71

avg incumbent reviews — the moat a new listing must climb

Price range

Good£2.28–£27.78

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

Competition

Okay59%

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

Market size

Bad£31K

£31K/yr · 27K searches

According to Flapen's Amazon United Kingdom niche tracking, hikari teeth whitening powder is a £31K/yr Amazon United Kingdom market (27K searches/yr). The top 5 brands hold 67% of demand. Verdict: Worth a look — 64/100.

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

hikari teeth whitening powder market data

Units sold / yr
2K–2K
avg 0–100/product
Revenue / yr
£21K–£27K
units × avg price
Conversion rate
8.4%
Avg BSR
#244
Page quality
0%
Prime
48%
Sponsored
95%
Out of stock
43.2%
Avg brand age
17 months
Avg seller age
185 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

18

Sellers

47

Top-5 brand share

67%

Top 20: 100%

Top-5 click share

59%

Top 20: 99%

Open market

28%

  • Yestree22%
  • Generic17%
  • Xuminny10%
  • kyno9%
  • MySweetSmile9%
  • KUNYOS5%

Top hikari teeth whitening powder 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.

0%10%£3K20%£6K30%£9K40%£12K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted

All 21 tracked products in this niche — three views at once, no toggling.

What buyers say about hikari teeth whitening powder

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

What buyers love

Tooth Brightening22%

“It really works with whitening your teeth”

Quality-Overall15%

“Good product as expected from this company”

Advertised Vs Actual Product9%

“it has always done the job”

Oral Hygiene7%

“Clean teeth”

Value For Money7%

“good price”

Efficiency6%

“Works well”

Taste-Overall5%

“A bit strong for my personal taste”

Cleansing4%

“I feel it makes teeth really clean”

Ease Of Use3%

“Easy to use”

Ease Of Cleaning3%

“Clean efficiently”

What buyers complain about

Functionality-Overall16%

“Doesn't work”

Value For Money14%

“Waste of money”

Oral Hygiene8%

“Without dental cleaning”

Tooth Brightening7%

“Yet another teeth whitening fail”

Stain Resistance6%

“Had stains on my teeth”

Tooth Sensitivity4%

“My mouth was smarting after I brush my teeth”

Color4%

“they were beginning to look a bit yellow so I thought Id give this powder a go”

Quality-Overall3%

“cheap quality”

Size-Overall3%

“Only small 30g”

Visibility3%

“Not really seen any difference”

Top return reasons

Functionality-Overall14%
Advertised Vs Actual Product11%
Tooth Sensitivity10%
Tooth Brightening10%
Size-Overall7%
Taste-Overall6%
Leak-Proof6%
Certifications6%
Value For Money5%
Smell4%

Common questions

Is hikari teeth whitening powder profitable to sell on Amazon United Kingdom?
The niche generates £31K/yr across 21 tracked products. 4 of 18 products launched in the last 360 days are still selling. 90-day search growth is >1,000%. Flapen's verdict: Worth a look (64/100).
How competitive is the hikari teeth whitening powder niche?
18 brands and 47 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 67% of demand.
What do buyers complain about in hikari teeth whitening powder?
Top complaints mined from reviews: Functionality-Overall, Value For Money, Oral Hygiene. The return rate is 0.1%.
What does it cost to enter the hikari teeth whitening powder niche?
Listings span £2.28–£27.78; the average listing price is £13.70 (sweet spot $15–$100). The average incumbent carries 1,063 reviews — the moat a new listing must climb.