Is kreain nature tooth refresh toothpaste profitable to sell on Amazon United States?

The niche generates $328K/yr across 9 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is -54.0%. Flapen's verdict: Worth a look (55/100).

How competitive is the kreain nature tooth refresh toothpaste niche?

9 brands and 10 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in kreain nature tooth refresh toothpaste?

Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Advertised Vs Actual Product. The return rate is 0.7%.

What does it cost to enter the kreain nature tooth refresh toothpaste niche?

Listings span $12.67–$21.82; the average listing price is $16.02 (sweet spot $15–$100). The average incumbent carries 84 reviews — the moat a new listing must climb.

Kreain Nature Tooth Refresh Toothpaste

Worth a look

Shows beatable incumbent ratings (3.6★), but soft demand (-54.0% this quarter) keeps it on the watch list.

Quality gap

Incredible3.6★

avg incumbent rating — lower means beatable quality

Review moat

Incredible84.22

avg incumbent reviews — the moat a new listing must climb

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Conversion

Incredible12.5%

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

Avg price

Great$16.02

avg listing price — sweet spot $15–$100

Price range

Great$12.67–$21.82

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

Market size

Good$328K

$328K/yr · 163K searches

Brand share

Okay82%

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

Competition

Bad82%

top-5 click share — a locked-up shelf

Growth

Bad-54.0%

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

Signals Low Review Barrier Quality Gap Out of Stock

Is kreain nature tooth refresh toothpaste profitable on Amazon?

According to Flapen's Amazon United States niche tracking, kreain nature tooth refresh toothpaste is a $328K/yr Amazon United States market (163K searches/yr). The top 5 brands hold 82% of demand. Verdict: Worth a look — 55/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

kreain nature tooth refresh toothpaste market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 13K–15K; avg 750–1,000/product
Revenue / yr: $200K–$240K; units × avg price
Conversion rate: 12.5%
Avg BSR: #1,075
Page quality: 0%
Prime: 89%
Sponsored: 100%
Out of stock: 8.3%
Avg brand age: 39 months
Avg seller age: 144 days

Competition: brands, sellers & click share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

13%

Kreain Nature39%
HONGYUNDA18%
Generic12%
LEDeng7%
HEDGAUCP6%
CROOT5%
Open — no brand owns it (3 brands, 13%)

kreain nature tooth refresh toothpaste demand & seasonality

Weekly Amazon search volume, last 41 weeks — -54.0% search growth over the last 90 days.

Open Trend

Top kreain nature tooth refresh toothpaste search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

kreain nature tooth refresh toothpaste80K/yr -43.2%8.2% conv.
tooth refresh toothpaste26K/yr -73.1%7.9% conv.
kreain nature tooth restore toothpaste15K/yr -39.3%6.3% conv.
krein nature toothpaste12K/yr -51.3%6.7% conv.
kreain nature pasta dental8K/yr -27.8%4.0% conv.
tooth refresh3K/yr -44.1%5.1% conv.
tooth refresh toothpaste for gum disease4K/yr -80.6%10.0% conv.
korean nature toothpaste2K/yr -43.4%5.8% conv.
kresin nature toothpaste4K/yr -67.4%6.8% conv.
krean nature toothpaste4K/yr -66.5%5.4% conv.

All search terms

Top kreain nature tooth refresh toothpaste products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Kreain Nature Tooth Refresh Toothpaste Whitening & Stain Remover for Coffee Hydroxyapatite for Enamel Support Fresh Breath Gentle for Sensitive Teeth Fluoride-Free Adults & Kids 3.5 Oz 2 Pack

Kreain Nature$21.824.5★185 rev

2PS Tooth Refresh Toothpaste Fresh Breath Whitening Toothpaste Natural Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stains Fresh Minty Gel

HONGYUNDA$16.033.7★137 rev

2PCS Tooth Refresh Toothpaste Fresh Breath Toothpaste Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stain Fresh Minty Gel

Generic$15.924.2★44 rev

2PCS Tooth Refresh Toothpaste Fresh Breath Whitening Toothpaste Natural Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stains Deep Cleaning Care

LEDeng$14.243.7★60 rev

Tooth Refresh Toothpaste Fresh Breath Whitening Toothpaste Natural Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stains Fresh Minty Gel 2-Pack

HEDGAUCP$17.543.7★161 rev

Newest

by launch date

2PCS Tooth Refresh Toothpaste Fresh Breath Whitening Hydroxyapatite Toothpaste Natural Oral Care & Enamel Repair

ROHIONE$15.269 rev

3mo ago

Tooth Refresh Toothpaste Teeth Whitening & Stain Remover 2 Pack

WenFeng$14.4715 rev

5mo ago

2PCS Tooth Refresh Toothpaste Fresh Breath Toothpaste Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stain Fresh Minty Gel

Generic$15.9244 rev

7mo ago

Tooth Refresh Toothpaste Fresh Breath Whitening Toothpaste Natural Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stains 3.52 oz (1)

CROOT$12.6750 rev

8mo ago

2PCS Tooth Refresh Toothpaste Fresh Breath Whitening Toothpaste Natural Oral Care & Enamel Repair Helps Remove Coffee Tea & Wine Stains Deep Cleaning Care

LEDeng$14.2460 rev

8mo ago

What reviews say buyers love and hate about kreain nature tooth refresh toothpaste

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

What buyers love

Quality-Overall17%

“Good presentation of the product and quality”

Tooth Brightening16%

“Good for teeth”

Oral Hygiene14%

“helps me stay consistent with my oral care routine”

Value For Money12%

“Great value for the price”

Efficiency7%

“Works good”

Cleansing5%

“Cleans Very Well”

Ease Of Use4%

“easy to use”

Ease Of Cleaning4%

“Cleans Very Well”

Advertised Vs Actual Product3%

“Working as advertised so far”

Taste-Overall2%

“Love it really does work taste great worth every penny my teeth look”

What buyers complain about

Functionality-Overall31%

“Did not work”

Taste-Overall14%

“Taste is awful”

Advertised Vs Actual Product9%

“Doesn't do what it is advertise has”

Certifications6%

“Not even ADA credited as ad says”

Value For Money5%

“It cost me thirteen dollars”

Texture/Consistency-Overall5%

“if the texture is smooth or gritty”

Thickness5%

“It is thick”

Allergies5%

“left a rash on my tongue”

Breathability4%

“Does nothing for my gum health or my breath”

Quality-Overall3%

“Not as good as Kreain”

Top return reasons

Advertised Vs Actual Product56%

Functionality-Overall8%

Taste-Overall6%

Certifications5%

Ingredients-Overall4%

Defective Material/Parts3%