Is expanding floss profitable to sell on Amazon United States?

The niche generates $5.9M/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.8%. Flapen's verdict: Launch it (62/100).

How competitive is the expanding floss niche?

10 brands and 502 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 95% of demand.

What do buyers complain about in expanding floss?

Top complaints mined from reviews: Value For Money, Thickness, Ease Of Use. The return rate is 0.2%.

When does demand for expanding floss peak?

Demand peaks in May–Jun; the busiest month runs 6.0× the quietest.

What does it cost to enter the expanding floss niche?

Listings span $1.14–$36.71; the average listing price is $13.88 (sweet spot $15–$100). The average incumbent carries 6,697 reviews — the moat a new listing must climb.

expanding floss

Launch it

A $5.9M/yr market growing +8.8% this quarter with returns at 0.2% — clears our launch bar.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Market size

Incredible$5.9M

$5.9M/yr · 3.2M searches

Conversion

Incredible13.2%

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

Avg price

Good$13.88

avg listing price — sweet spot $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Price range

Good$1.14–$36.71

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

Competition

Okay58%

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

Growth

Okay+8.8%

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

Review moat

Bad6,696.55

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad95%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, expanding floss is a $5.9M/yr Amazon United States market (3.2M searches/yr). The top 5 brands hold 95% of demand. Demand peaks in May–Jun. Verdict: Launch it — 62/100.

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

expanding floss market data

Units sold / yr: 400K–500K; avg 40,000–50,000/product
Revenue / yr: $5.6M–$6.9M; units × avg price
Conversion rate: 13.2%
Avg BSR: #60
Page quality: 0%
Prime: 100%
Sponsored: 90%
Out of stock: 0.0%
Avg brand age: 52 months
Avg seller age: 135 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 rising

Sellers

502

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

58%

Top 20: 100%

Open market

Cocolab65%
GuruNanda15%
Burst11%
GUM2%
Brushmo2%
NOBS2%
Open — no brand owns it (4 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.8% search growth over the last 90 days.

Peak months: May, Jun · busiest ÷ quietest = 6.0×

Open Trend

Top expanding floss search terms

cocofloss1.2M/yr -15.4%10.2% conv.
expanding floss586K/yr +69.8%10.6% conv.
coco floss454K/yr -24.8%8.6% conv.
cocolab floss144K/yr +38.1%7.0% conv.
cocofloss dental floss109K/yr +36.0%7.7% conv.
expanding dental floss69K/yr +80.9%7.7% conv.
guru nanda floss79K/yr +16.4%5.6% conv.
cocolab78K/yr +28.1%4.5% conv.
coco floss dental floss100K/yr +4.1%7.8% conv.
expandable floss64K/yr +81.2%9.6% conv.

All search terms

Top expanding floss 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 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Cocofloss Expanding Woven Dental Floss by Cocolab Waxed Tooth Floss for Daily Oral Care Coconut Oil Infused Vegan for Adults and Kids Strawberry Scent 1 Pack

Cocolab$9.984.5★21,122 rev

Cocofloss Expanding Woven Dental Floss by Cocolab Waxed Tooth Floss for Daily Oral Care Coconut Oil Infused Vegan for Adults and Kids Mint Scent 3 Pack

Cocolab$28.354.5★21,122 rev

Cocofloss Expanding Woven Dental Floss by Cocolab Waxed Tooth Floss for Daily Oral Care Coconut Oil Infused Vegan for Adults and Kids Mint Scent 1 Pack

Cocolab$10.014.5★21,122 rev

GuruNanda Expandable Waxed Dental Floss for Gentle Deep Cleaning Wide Teeth Flossing - Peppermint Flavor - 55 Yards 1 Count

GuruNanda$1.974.5★3,176 rev

BURST Expanding Dental Floss (Mint Eucalyptus/40 Yards) | Stain Absorbing & Woven Tooth Floss with Xylitol Coating to Fight Cavities | Vegan | Paraben Free Expanding Floss

Burst$5.804.6★2,106 rev

Newest

by launch date

Cocoshine 15% Nano-Hydroxyapatite Formula Toothpaste by Cocolab Fluoride-Free with Xylitol & Coconut Oil Sensitive Teeth Whitening Formula for Adults & Kids Mint 4 oz

Cocolab$14.48437 rev

8mo ago

Kids Reflosser by Cocolab Reusable Floss Holder BPA Free Flosser for Children Easy to Use Kids Floss Pick for Ages 5 and Under 1 Pack Cocofloss Not Included

Cocolab$13.87157 rev

1y ago

GuruNanda Expandable Waxed Dental Floss for Gentle Deep Cleaning Wide Teeth Flossing - Peppermint Flavor - 55 Yards 1 Count

GuruNanda$1.973,176 rev

1y ago

Cocofloss Expanding Woven Dental Floss Refill by Cocolab Waxed Tooth Floss for Daily Oral Care Coconut Oil Infused Vegan for Adults and Kids Mint Scent 3 Pack Refills

Cocolab$23.9121,122 rev

2y ago

GuruNanda Expandable Waxed Dental Floss for Gentle Deep Cleaning Wide Teeth Flossing - Cinnamon Flavor - 55 Yards

GuruNanda$1.143,176 rev

2y ago

What buyers say about expanding floss

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

What buyers love

Quality-Overall13%

“Excellent quality with beautiful blue colour”

Value For Money13%

“Great value”

Cleansing9%

“cleans really well”

Tooth Brightening6%

“teeth getting brighter”

Ease Of Use6%

“Easy To Use”

Stretchability/Expandability/Elasticity5%

“It stretchy”

Thickness5%

“This floss is thick”

Ease Of Cleaning4%

“Cleans well”

Efficiency4%

“honestly does the job effectively”

Advertised Vs Actual Product4%

“Exactly what I order”

What buyers complain about

Value For Money19%

“It is expensive”

Thickness13%

“does not thicken like the description”

Ease Of Use10%

“difficult to remove”

Durability6%

“Falls Apart”

Quality-Overall5%

“Very cheap quality”

Stretchability/Expandability/Elasticity5%

“not the same, very thin and not expanding”

Functionality-Overall4%

“dont work well”

Advertised Vs Actual Product3%

“Inaccurate description”

Strength2%

“Brittle”

Size-Overall2%

“short”

Top return reasons

Advertised Vs Actual Product17%

Functionality-Overall12%

Thickness8%

Value For Money6%

Stretchability/Expandability/Elasticity6%

Size-Overall6%

Defective Material/Parts5%

Ease Of Use4%

Quality-Overall4%

Material Quality3%

Common questions

Is expanding floss profitable to sell on Amazon United States?: The niche generates $5.9M/yr across 20 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +8.8%. Flapen's verdict: Launch it (62/100).
How competitive is the expanding floss niche?: 10 brands and 502 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in expanding floss?: Top complaints mined from reviews: Value For Money, Thickness, Ease Of Use. The return rate is 0.2%.
When does demand for expanding floss peak?: Demand peaks in May–Jun; the busiest month runs 6.0× the quietest.
What does it cost to enter the expanding floss niche?: Listings span $1.14–$36.71; the average listing price is $13.88 (sweet spot $15–$100). The average incumbent carries 6,697 reviews — the moat a new listing must climb.