Is floss refill profitable to sell on Amazon United States?

The niche generates $1.3M/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +42.9%. Flapen's verdict: Launch it (57/100).

How competitive is the floss refill niche?

7 brands and 53 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in floss refill?

Top complaints mined from reviews: Quality-Overall, Value For Money, Thickness. The return rate is 0.2%.

When does demand for floss refill peak?

Demand peaks in Mar–Apr–May; the busiest month runs 2.3× the quietest.

What does it cost to enter the floss refill niche?

Listings span $4.81–$26.56; the average listing price is $14.12 (sweet spot $15–$100). The average incumbent carries 9,941 reviews — the moat a new listing must climb.

floss refill

Launch it

A $1.3M/yr market growing +42.9% this quarter with returns at 0.2% — clears our launch bar.

Conversion

Incredible19.4%

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

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Market size

Great$1.3M

$1.3M/yr · 459K searches

Avg price

Good$14.12

avg listing price — sweet spot $15–$100

Growth

Good+42.9%

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

Price range

Good$4.81–$26.56

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Bad72%

top-5 click share — a locked-up shelf

Review moat

Bad9,940.75

avg incumbent reviews — the moat a new listing must climb

Brand share

Bad97%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, floss refill is a $1.3M/yr Amazon United States market (459K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Mar–Apr–May. Verdict: Launch it — 57/100.

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

floss refill market data

Units sold / yr: 100K–125K; avg 6,000–8,000/product
Revenue / yr: $1.4M–$1.8M; units × avg price
Conversion rate: 19.4%
Avg BSR: #115
Page quality: 0%
Prime: 100%
Sponsored: 69%
Out of stock: 0.0%
Avg brand age: 58 months
Avg seller age: 153 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 flat

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

Reach62%
Cocolab16%
Bopika10%
VINSULLA5%
GLI-Smile5%
RAZOKO2%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +42.9% search growth over the last 90 days.

Peak months: Mar, Apr, May · busiest ÷ quietest = 2.3×

Open Trend

Top floss refill search terms

reach flosser refill heads155K/yr +67.4%18.4% conv.
listerine flosser refill heads62K/yr +50.1%16.8% conv.
cocofloss refill69K/yr -20.0%15.7% conv.
flosser refill heads22K/yr +51.4%14.7% conv.
reach flosser refills14K/yr +85.8%12.6% conv.
floss refill24K/yr +16.2%3.5% conv.
coco floss refill23K/yr -0.3%16.0% conv.
listerine flosser refills10K/yr +58.5%12.9% conv.
reach ultraclean access flosser refill heads8K/yr +89.6%16.6% conv.
cocolab floss refill12K/yr +19.8%13.2% conv.

All search terms

Top floss refill 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 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

REACH Ultraclean Access Flosser Refill Heads Mint Plaque Remover for Teeth Shred Resistant for Hard to Reach Areas Oral Care PFAS Free for Adults & Kids 1 Pack 28 Count

Reach$4.814.8★31,329 rev

REACH Ultraclean Access Flosser Refill Heads Mint Plaque Remover for Teeth Shred Resistant for Hard to Reach Areas Oral Care PFAS Free for Adults & Kids 6 Pack 28 Count

Reach$26.564.8★31,329 rev

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$23.914.5★21,122 rev

Bopika Ultraclean Access Flosser Refill Heads for Hard to Reach Areas Mint Compatible with Listerine Ultraclean Access Flosser 3 Pack 120 Count

Bopika$9.894.2★319 rev

REACH Ultraclean Access Flosser Refill Heads Unflavored Plaque Remover for Teeth Shred Resistant for Hard to Reach Areas Oral Care PFAS Free for Adults & Kids 6 Pack 28 Count

Reach$26.194.8★31,329 rev

Newest

by launch date

RAZOKO 120 Flosser Refills Compatible with Listerine Ultraclean Access

RAZOKO$9.8264 rev

5mo ago

VINSULLA Flosser Refill Heads Compatible with Listerine Ultraclean Access Flosser Mint Shred Resistant 40 Count Pack of 3

VINSULLA$9.7355 rev

6mo ago

Bopika Ultraclean Access Flosser Refill Heads for Hard to Reach Areas Mint Compatible with Listerine Ultraclean Access Flosser 3 Pack 120 Count

Bopika$9.89319 rev

1y ago

Reach Ultraclean Access Flosser Bundle Mint Plaque Remover for Teeth for Hard to Reach Areas Oral Care PFAS-Free 1 Flosser Starter Kit + 3 Packs Refill Heads

Reach$22.597,307 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

What buyers say about floss refill

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

What buyers love

Value For Money22%

“Excellent Value”

Quality-Overall18%

“Functional and good quality”

Ease Of Use14%

“Convenient buy”

Advertised Vs Actual Product12%

“As described”

Size-Overall9%

“Fit perfect”

Efficiency4%

“These do the job”

Cleansing3%

“cleans very well”

Durability2%

“these ones did not break at all”

Tooth Brightening1%

“Clean my teeth”

Ease Of Cleaning1%

“Clean teeth”

What buyers complain about

Quality-Overall16%

“Reduced Quality”

Value For Money15%

“very pricey”

Thickness13%

“not as thick as covofloss in the container”

Durability12%

“broke very easily”

Ease Of Use6%

“Not user friendly”

Size-Overall5%

“A little tighter fit”

Strength4%

“maybe too sturdy”

Advertised Vs Actual Product3%

“I've reviewed the ads abd do not see any sizes mentioned”

Natural Resource Wastage1%

“Plastic Waste”

Comfort-Overall1%

“isn't very comfortable”

Top return reasons

Advertised Vs Actual Product21%

Size-Overall18%

Value For Money13%

Defective Material/Parts11%

Functionality-Overall6%

Leak-Proof3%

Quality-Overall3%

Thickness3%

Strength3%

Material Quality2%

Common questions

Is floss refill profitable to sell on Amazon United States?: The niche generates $1.3M/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +42.9%. Flapen's verdict: Launch it (57/100).
How competitive is the floss refill niche?: 7 brands and 53 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in floss refill?: Top complaints mined from reviews: Quality-Overall, Value For Money, Thickness. The return rate is 0.2%.
When does demand for floss refill peak?: Demand peaks in Mar–Apr–May; the busiest month runs 2.3× the quietest.
What does it cost to enter the floss refill niche?: Listings span $4.81–$26.56; the average listing price is $14.12 (sweet spot $15–$100). The average incumbent carries 9,941 reviews — the moat a new listing must climb.