Is down detergent profitable to sell on Amazon United States?

The niche generates $662K/yr across 7 tracked products. 90-day search growth is -52.2%. Flapen's verdict: Skip it (43/100).

How competitive is the down detergent niche?

3 brands and 15 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in down detergent?

Top complaints mined from reviews: Stain Resistance, Value For Money, Ease Of Cleaning. The return rate is 0.8%.

When does demand for down detergent peak?

Demand peaks in Jan–Feb–Dec; the busiest month runs 4.8× the quietest.

What does it cost to enter the down detergent niche?

Listings span $12.65–$29.37; the average listing price is $19.80 (sweet spot $15–$100). The average incumbent carries 2,449 reviews — the moat a new listing must climb.

down detergent

Skip it

Soft demand (-52.2% this quarter) — this niche doesn't clear our bar today.

Conversion

Incredible18.6%

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

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Great$19.80

avg listing price — sweet spot $15–$100

Price range

Great$12.65–$29.37

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

Market size

Good$662K

$662K/yr · 180K searches

Review moat

Okay2,448.71

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad93%

top-5 click share — a locked-up shelf

Growth

Bad-52.2%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, down detergent is a $662K/yr Amazon United States market (180K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Skip it — 43/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

down detergent market data

Units sold / yr: 30K–40K; avg 4,000–5,000/product
Revenue / yr: $594K–$792K; units × avg price
Conversion rate: 18.6%
Avg BSR: #218
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 11.0%
Avg brand age: 83 months
Avg seller age: 162 days

Competition & brand share

The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

93%

Top 20: 100%

Open market

Nikwax85%
GEAR AID8%
Granger's7%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -52.2% search growth over the last 90 days.

Peak months: Jan, Feb, Dec · busiest ÷ quietest = 4.8×

Open Trend

Top down detergent search terms

nikwax down wash40K/yr -43.2%23.8% conv.
down wash28K/yr -43.2%17.5% conv.
down detergent30K/yr -57.3%12.3% conv.
nikwax down wash direct15K/yr -32.9%18.6% conv.
down wash detergent16K/yr -52.1%15.3% conv.
down jacket detergent13K/yr -69.4%14.7% conv.
down detergent for puffer jackets10K/yr -73.4%17.0% conv.
down jacket cleaner6K/yr -59.9%8.1% conv.
down cleaner5K/yr -54.6%13.9% conv.
down laundry detergent6K/yr -63.0%16.1% conv.

All search terms

Top down detergent 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 7 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nikwax Down Wash 300ml Detergent for down jackets and sleeping bags outdoor apparel clean care protect

Nikwax$13.664.7★5,413 rev

Nikwax Down Down DUO-Pack 300ml Wash-In Cleaning and Waterproofing adds DWR Water Repellency to Down Filled Jackets Outerwear Sleeping Bags Restores and Protects Insulation and Loft

Nikwax$26.824.6★415 rev

Nikwax Down Wash 1L Detergent for down jackets and sleeping bags outdoor apparel clean care protect

Nikwax$29.374.7★5,413 rev

GEAR AID Revivex Down Cleaner for Washing and Restoring Loft in Puffer Jackets Vests Blankets and Sleeping Bags 10 Fl Oz

GEAR AID$12.654.6★1,235 rev

Grangers Down Wash 10 fl oz (300ml) | Concentrated Technical Cleaner for Down Jackets Sleeping Bags & Bedding Restores Loft & Thermal Efficiency Bluesign Approved & PFC-Free

Granger's$17.354.6★989 rev

Newest

by launch date

Nikwax Down Down DUO-Pack 300ml Wash-In Cleaning and Waterproofing adds DWR Water Repellency to Down Filled Jackets Outerwear Sleeping Bags Restores and Protects Insulation and Loft

Nikwax$26.82415 rev

3y ago

Grangers Down Wash 10 fl oz (300ml) | Concentrated Technical Cleaner for Down Jackets Sleeping Bags & Bedding Restores Loft & Thermal Efficiency Bluesign Approved & PFC-Free

Granger's$17.35989 rev

5y ago

GEAR AID Revivex Down Cleaner for Washing and Restoring Loft in Puffer Jackets Vests Blankets and Sleeping Bags 10 Fl Oz

GEAR AID$12.651,235 rev

8y ago

Grangers Down Wash Kit | Down Wash 10 oz Concentrate and 3 Reusable Dry Balls To Restore Down Loft

Granger's$24.082,564 rev

9y ago

Nikwax Down Wash 1L Detergent for down jackets and sleeping bags outdoor apparel clean care protect

Nikwax$29.375,413 rev

10y ago

What buyers say about down detergent

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

What buyers love

Quality-Overall34%

“Excellent product”

Ease Of Cleaning15%

“It cleans really well though”

Advertised Vs Actual Product7%

“Works as advertised”

Product Condition6%

“Just like new”

Smell6%

“made them smell brand new”

Washability5%

“Perfect for washing down- filled items”

Ease Of Use4%

“Easy to use”

Value For Money2%

“Amazing value”

Weather Proof2%

“Quality products for all outdoor wear”

Soft Feel2%

“great, gentle and useful”

What buyers complain about

Stain Resistance22%

“stains that the dry cleaning folks could not remove”

Value For Money17%

“not cheap,”

Ease Of Cleaning14%

“it has zero cleaning power”

Leak-Proof6%

“the Down Wash bottle in particular was leaking significantly. the Down Proof bottle froze solid, preventing leakage,”

Product Condition5%

“Prodext arrived open and used”

Size-Overall5%

“I was surprised to see how small the bottle was compared to what I used to purchase”

Color3%

“the water came out brown”

Strength2%

“Does no damage because its not strong enough”

Functionality-Overall2%

“It didn't work”

Ease Of Use2%

“Takes time to do properly”

Top return reasons

Leak-Proof31%

Advertised Vs Actual Product17%

Value For Money12%

Size-Overall8%

Functionality-Overall8%

Water Resistance5%

Defective Material/Parts4%

Ease Of Cleaning3%

Stain Resistance3%

Material Quality2%

Common questions

Is down detergent profitable to sell on Amazon United States?: The niche generates $662K/yr across 7 tracked products. 90-day search growth is -52.2%. Flapen's verdict: Skip it (43/100).
How competitive is the down detergent niche?: 3 brands and 15 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in down detergent?: Top complaints mined from reviews: Stain Resistance, Value For Money, Ease Of Cleaning. The return rate is 0.8%.
When does demand for down detergent peak?: Demand peaks in Jan–Feb–Dec; the busiest month runs 4.8× the quietest.
What does it cost to enter the down detergent niche?: Listings span $12.65–$29.37; the average listing price is $19.80 (sweet spot $15–$100). The average incumbent carries 2,449 reviews — the moat a new listing must climb.