Is plax profitable to sell on Amazon United States?

The niche generates $213K/yr across 3 tracked products. 90-day search growth is -16.3%. Flapen's verdict: Skip it (34/100).

How competitive is the plax niche?

3 brands and 14 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in plax?

Top complaints mined from reviews: Ingredients-Overall, Size-Overall, Value For Money. The return rate is 0.1%.

When does demand for plax peak?

Demand peaks in Aug; the busiest month runs 1.8× the quietest.

What does it cost to enter the plax niche?

Listings span $3.89–$17.43; the average listing price is $9.19 (sweet spot $15–$100). The average incumbent carries 2,785 reviews — the moat a new listing must climb.

plax

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible21.9%

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

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Market size

Okay$213K

$213K/yr · 106K searches

Review moat

Okay2,784.67

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$9.19

avg listing price — sweet spot $15–$100

Price range

Bad$3.89–$17.43

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

Growth

Bad-16.3%

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

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, plax is a $213K/yr Amazon United States market (106K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug. Verdict: Skip it — 34/100.

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

plax market data

Units sold / yr: 30K–40K; avg 10,000–12,500/product
Revenue / yr: $276K–$368K; units × avg price
Conversion rate: 21.9%
Avg BSR: #93
Page quality: 0%
Prime: 100%
Sponsored: 67%
Out of stock: 0.0%
Avg brand age: 93 months
Avg seller age: 160 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Plax45%
Amazon Basics43%
TheraBreath12%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.3% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 1.8×

Open Trend

Top plax search terms

plax37K/yr -10.9%14.3% conv.
pre brush dental rinse10K/yr +3.7%17.8% conv.
plax pre-brush dental rinse4K/yr +111.1%14.9% conv.
pre brush mouthwash7K/yr +2.7%13.2% conv.
pre rinse mouthwash6K/yr -4.0%16.4% conv.
plax mouthwash10K/yr -11.2%6.7% conv.
prebrush dental rinse4K/yr -3.5%23.1% conv.
plax anti-plaque dental rinse29K/yr -82.6%6.8% conv.

All search terms

Top plax 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 3 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Plax Advanced PreBrushing Dental Rinse Soft Mint 24 Ounce

Plax$6.244.8★3,830 rev

Amazon Basics Pre-Brush Dental Rinse Green Mint Flavor Loosens Plaque Before Brushing 24 Fluid Ounces 1-Pack (Previously Solimo)

Amazon Basics$3.894.7★1,828 rev

TheraBreath Plaque Control Pre-Brush Oral Rinse Refreshing Mint Flavor Antigingivitis and Antiplaque Rinse Dentist Formulated Alcohol Free 16 Fl Oz (Pack of 2)

TheraBreath$17.434.8★2,696 rev

Newest

by launch date

TheraBreath Plaque Control Pre-Brush Oral Rinse Refreshing Mint Flavor Antigingivitis and Antiplaque Rinse Dentist Formulated Alcohol Free 16 Fl Oz (Pack of 2)

TheraBreath$17.432,696 rev

1y ago

Amazon Basics Pre-Brush Dental Rinse Green Mint Flavor Loosens Plaque Before Brushing 24 Fluid Ounces 1-Pack (Previously Solimo)

Amazon Basics$3.891,828 rev

4y ago

Plax Advanced PreBrushing Dental Rinse Soft Mint 24 Ounce

Plax$6.243,830 rev

19y ago

What buyers say about plax

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

What buyers love

Value For Money25%

“Worth the money”

Cleansing15%

“a Smoother Clean”

Quality-Overall13%

“Cheap and good product”

Efficiency10%

“Work great/ This does the job”

Tooth Brightening8%

“I feel like my teeth are cleaner”

Ease Of Cleaning5%

“clean”

Breathability5%

“Rinsing clean breathe”

Ease Of Use5%

“Easy to use and very effective”

Brush Quality3%

“great pre brush rinse”

Alcohol Content3%

“is good oral rinse alcohol free for sensitive teeth :”

What buyers complain about

Ingredients-Overall19%

“Wish I had thought to read the ingredients”

Size-Overall19%

“The only complaint I have is the bottle isnt big enough”

Value For Money13%

“I cant afford the tripled price”

Sensitivity-Overall13%

“don't use toothpaste because it tends to burn my mouth”

Advertised Vs Actual Product13%

“They just suggest that it doesn't work as promised”

Leak-Proof13%

“Recently these bottles have leaked”

Allergies3%

“have found them extremely irritating”

Top return reasons

Advertised Vs Actual Product17%

Leak-Proof15%

Ingredients-Overall11%

Functionality-Overall8%

Moist/Dry8%

Alcohol Content7%

Stain Resistance6%

Product Condition4%

Color3%

Ease Of Cleaning2%

Common questions

Is plax profitable to sell on Amazon United States?: The niche generates $213K/yr across 3 tracked products. 90-day search growth is -16.3%. Flapen's verdict: Skip it (34/100).
How competitive is the plax niche?: 3 brands and 14 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in plax?: Top complaints mined from reviews: Ingredients-Overall, Size-Overall, Value For Money. The return rate is 0.1%.
When does demand for plax peak?: Demand peaks in Aug; the busiest month runs 1.8× the quietest.
What does it cost to enter the plax niche?: Listings span $3.89–$17.43; the average listing price is $9.19 (sweet spot $15–$100). The average incumbent carries 2,785 reviews — the moat a new listing must climb.