Is watermelon toothpaste kids profitable to sell on Amazon United States?

The niche generates $220K/yr across 12 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.7%. Flapen's verdict: Skip it (38/100).

How competitive is the watermelon toothpaste kids niche?

6 brands and 579 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 98% of demand.

What do buyers complain about in watermelon toothpaste kids?

Top complaints mined from reviews: Ingredients-Overall, Ease Of Use, Allergies. The return rate is 0.5%.

When does demand for watermelon toothpaste kids peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the watermelon toothpaste kids niche?

Listings span $3.18–$14.65; the average listing price is $9.43 (sweet spot $15–$100). The average incumbent carries 5,415 reviews — the moat a new listing must climb.

watermelon toothpaste kids

Skip it

Prices mostly outside the sweet spot ($3.18–$14.65) — this niche doesn't clear our bar today.

Conversion

Incredible16.5%

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

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Market size

Okay$220K

$220K/yr · 141K searches

Avg price

Okay$9.43

avg listing price — sweet spot $15–$100

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Okay+0.7%

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

Review moat

Bad5,415.08

avg incumbent reviews — the moat a new listing must climb

Competition

Bad77%

top-5 click share — a locked-up shelf

Brand share

Bad98%

top-5 brand share — brand-locked demand

Price range

Bad$3.18–$14.65

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

According to Flapen's Amazon United States niche tracking, watermelon toothpaste kids is a $220K/yr Amazon United States market (141K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 38/100.

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

watermelon toothpaste kids market data

Units sold / yr: 20K–25K; avg 1,500–2,000/product
Revenue / yr: $189K–$236K; units × avg price
Conversion rate: 16.5%
Avg BSR: #117
Page quality: 0%
Prime: 100%
Sponsored: 42%
Out of stock: 3.0%
Avg brand age: 53 months
Avg seller age: 137 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 rising

Sellers

579

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

Colgate51%
hello26%
Tom's of Maine11%
Orajel6%
ACT4%
Boka2%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top watermelon toothpaste kids search terms

watermelon toothpaste kids55K/yr -13.2%14.8% conv.
watermelon toothpaste34K/yr +16.2%14.0% conv.
kids watermelon toothpaste19K/yr +1.1%14.5% conv.
kids toothpaste watermelon10K/yr +2.2%13.2% conv.
watermelon kids toothpaste7K/yr +24.5%15.9% conv.
colgate watermelon toothpaste4K/yr +145.0%15.2% conv.
toothpaste watermelon4K/yr -1.8%13.8% conv.
colgate watermelon toothpaste kids8K/yr -59.8%12.3% conv.

All search terms

Top watermelon toothpaste kids 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

Colgate Anticavity Kids Toothpaste with Fluoride for Ages 2+ Watermelon Burst Flavor - 4.6 Ounce (4 Pack)

Colgate$12.384.8★3,875 rev

Hello Fresh Watermelon Fluoride Free Kids Toothpaste 4.2 Oz Tube (Pack of 3)

hello$11.364.7★2,236 rev

hello Fresh Watermelon Fluoride Free Kids Toothpaste 4.2 Oz Tube

hello$4.354.7★25,834 rev

Toms of Maine Natural Kids Fluoride Toothpaste 3 Pack For Kids Ages 2 and Up Great Toddler Toothpastes No Artificial Flavors Dyes or Preservatives Watermelon Wiggle 5.1 oz

Tom's of Maine$13.644.7★415 rev

Orajel Kids Superman Anti-Cavity Toothpaste Natural Watermelon Flavor 4.2 Oz Tube 4-Pack

Orajel$10.024.8★90 rev

Newest

by launch date

Orajel Kids Superman Anti-Cavity Toothpaste Natural Watermelon Flavor 4.2 Oz Tube 4-Pack

Orajel$10.0290 rev

10mo ago

Colgate MaxFresh Watermelon Blast Gel Toothpaste with Cooling Crystals Watermelon Flavour and Ultrafreeze Technology for Intense Freshness Vegan Gluten-Free 100g/3.5oz

Colgate$13.78395 rev

1y ago

Hello Smiling Shark and Fresh Watermelon Fluoride Free Kids Toothpaste Pack Includes 4.2 oz Smiling Shark Kids and 4.2 oz Fresh Watermelon Toothpaste

hello$9.78807 rev

1y ago

Toms of Maine Anticavity Kids Natural Toothpaste Variety Pack Strawberry Orange Mango Watermelon Flavors Kids Toothpaste with Fluoride Safe for Ages 2 and Up 5.1 oz (Pack of 3)

Tom's of Maine$14.651,332 rev

2y ago

Boka Fluoride Free Toothpaste Nano Hydroxyapatite Toothpaste - Watermelon Mint Flavor 4 oz 1Pk

Boka$12.0011,792 rev

3y ago

What buyers say about watermelon toothpaste kids

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

What buyers love

Smell9%

“Good smell”

Value For Money8%

“Good for the price”

Oral Hygiene8%

“Clean teeth”

Quality-Overall7%

“Its a good quality”

Ease Of Use6%

“Easy to use tubes”

Toxic/Chemical Free6%

“Fluoride-free, which I like”

Tooth Brightening5%

“Seems effective— my daughter gets positive reports from dentist”

Texture/Consistency-Overall5%

“The texture is smooth”

Cleansing4%

“still very effective for cleaning teeth”

Ease Of Cleaning4%

“Teeth look clean”

What buyers complain about

Ingredients-Overall17%

“it has terrible ingredients”

Ease Of Use13%

“Tube Is Very Hard to Squeeze”

Allergies6%

“the rash she got around her mouth when I accidentally got some with it is gone”

Quality-Overall6%

“Garbage product”

Certifications5%

“This brand cannot be trusted”

Color4%

“Color changing”

Ease Of Cleaning3%

“it does not seem to clean very well”

Oral Hygiene3%

“not a pack of 5 Toothpaste is fine”

Contamination3%

“more than five times the agencys maximum contaminant level for the heavy metal”

Advertised Vs Actual Product3%

“Grossly despicable to continue selling literal poison marketing for KIDS”

Top return reasons

Advertised Vs Actual Product37%

Ingredients-Overall13%

Certifications8%

Leak-Proof5%

Value For Money4%

Size-Overall4%

Defective Material/Parts3%

Smell3%

Texture/Consistency-Overall3%

Flavor2%

Common questions

Is watermelon toothpaste kids profitable to sell on Amazon United States?: The niche generates $220K/yr across 12 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.7%. Flapen's verdict: Skip it (38/100).
How competitive is the watermelon toothpaste kids niche?: 6 brands and 579 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 98% of demand.
What do buyers complain about in watermelon toothpaste kids?: Top complaints mined from reviews: Ingredients-Overall, Ease Of Use, Allergies. The return rate is 0.5%.
When does demand for watermelon toothpaste kids peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the watermelon toothpaste kids niche?: Listings span $3.18–$14.65; the average listing price is $9.43 (sweet spot $15–$100). The average incumbent carries 5,415 reviews — the moat a new listing must climb.