Is cosrx set profitable to sell on Amazon United States?

The niche generates $132K/yr across 7 tracked products. 90-day search growth is -6.2%. Flapen's verdict: Skip it (38/100).

How competitive is the cosrx set niche?

2 brands and 19 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in cosrx set?

Top complaints mined from reviews: Allergies, Functionality-Overall, Skin Health. The return rate is 1.0%.

When does demand for cosrx set peak?

Demand peaks in May–Dec; the busiest month runs 2.8× the quietest.

What does it cost to enter the cosrx set niche?

Listings span $9.80–$32.40; the average listing price is $20.07 (sweet spot $15–$100). The average incumbent carries 17,444 reviews — the moat a new listing must climb.

cosrx set

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible1.0%

return rate — above 5% kills the launch gate

Avg price

Great$20.07

avg listing price — sweet spot $15–$100

Price range

Great$9.80–$32.40

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

Conversion

Good6.3%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$132K

$132K/yr · 105K searches

Growth

Bad-6.2%

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

Review moat

Bad17,444

avg incumbent reviews — the moat a new listing must climb

Competition

Bad89%

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, cosrx set is a $132K/yr Amazon United States market (105K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Dec. Verdict: Skip it — 38/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

cosrx set market data

Units sold / yr: 5K–6K; avg 250–500/product
Revenue / yr: $100K–$120K; units × avg price
Conversion rate: 6.3%
Avg BSR: #202
Page quality: 0%
Prime: 100%
Sponsored: 71%
Out of stock: 17.5%
Avg brand age: 37 months
Avg seller age: 145 days

Competition & brand share

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

COSRX95%
coxir5%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 76 weeks — -6.2% search growth over the last 90 days.

Peak months: May, Dec · busiest ÷ quietest = 2.8×

Open Trend

Top cosrx set search terms

cosrx travel size kit19K/yr +6.6%7.3% conv.
cosrx set14K/yr -15.2%1.4% conv.
cosrx travel size9K/yr +34.6%5.0% conv.
cosrx kit9K/yr -20.4%2.6% conv.
cosrx travel4K/yr +25.5%6.3% conv.
snail mucin travel size6K/yr +3.9%6.6% conv.
cosrx snail mucin travel size5K/yr -10.7%6.2% conv.
snail mucin set7K/yr -29.5%1.8% conv.
travel size snail mucin3K/yr -0.5%5.5% conv.
snail kit3K/yr +23.6%1.2% conv.

All search terms

Top cosrx set 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

COSRX All About Snail Mucin Korean Skin Care Set Mini Travel Essentials Travel Size Gift Set with Snail Mucin Face Wash Serum Moisturizer & Eye Cream Rejuvenating Kit Mothers Day Gifts for Mom

COSRX$21.004.5★5,792 rev

COSRX Snail Mucin 96% Peptide Booster Set - Amazon Exclusive - Korean Skin Care Gift Sets Skin Care Sets for Women Advanced Snail Mucin Serum Face Serum

COSRX$32.404.6★2,083 rev

COSRX Snail Mucin 96% Repairing Serum Hydrating Serum for Face with Snail Secretion Filtrate for Dull Skin & Fine Lines 100ml Korean Skin Care

COSRX$16.064.6★105,499 rev

COSRX Snail Mucin 74% + Niacinamide 5% Dual Essence Anti Aging Face Serum for Dull Skin Sensitive Skin Korean Skin Care 2.70 fl.oz / 80ml

COSRX$19.534.5★7,489 rev

COSRX Honey Glow Kit Korean Skin Care Set with Propolis Facial Toner Serum & Cream Mini Travel Essentials Deep Moisture Hydration Nourishment Travel Size Gift Set Korean Skin Care

COSRX$21.994.5★823 rev

Newest

by launch date

COSRX Mini-Sized 6X Peptide Collagen Skin Booster Toner Serum 1.01 Fl Oz for Dull & Uneven Skin Travel Essentials Preps Skin with Copper Peptides GHK-Cu Korean Skin Care

COSRX$9.80205 rev

1y ago

COSRX Snail Mucin 96% Peptide Booster Set - Amazon Exclusive - Korean Skin Care Gift Sets Skin Care Sets for Women Advanced Snail Mucin Serum Face Serum

COSRX$32.402,083 rev

2y ago

coxir Black Snail Collagen 4-Step Trial Starter Kit - Korean Skincare Gift with Snail Mucin Collagen & Black Bean | Cleanser + Toner + Serum + Cream for Firmer-Looking Glowing Skin [Travel 4-Piece]

coxir$19.72217 rev

3y ago

COSRX All About Snail Mucin Korean Skin Care Set Mini Travel Essentials Travel Size Gift Set with Snail Mucin Face Wash Serum Moisturizer & Eye Cream Rejuvenating Kit Mothers Day Gifts for Mom

COSRX$21.005,792 rev

5y ago

COSRX Honey Glow Kit Korean Skin Care Set with Propolis Facial Toner Serum & Cream Mini Travel Essentials Deep Moisture Hydration Nourishment Travel Size Gift Set Korean Skin Care

COSRX$21.99823 rev

5y ago

What buyers say about cosrx set

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

What buyers love

Suitability Combination Skin18%

“So great for sensitive skin”

Moist/Dry17%

“Great moisturizer”

Quality-Overall10%

“It is well-made”

Soft Feel8%

“extremely soft”

Value For Money6%

“Good value”

Suitability Dry Skin5%

“Amazing for dry skin”

Brightness/Shine/Glow4%

“gives a nice glow”

Absorbency4%

“It absorbs well”

Allergies2%

“No irritation”

Smell2%

“I love the scent”

What buyers complain about

Allergies10%

“irritated at times”

Functionality-Overall8%

“saw no results”

Skin Health6%

“Dont see any kind of benefit for the skin”

Suitability Dry Skin5%

“Not great for very dry flaky skin”

Adhesion/Stickiness4%

“then turned sticky which I can put up with if it gave me amazing results”

Moist/Dry4%

“not as hydrating”

Smell4%

“There is no real scent to it”

Value For Money3%

“Not sure why they raised tbe price so much”

Suitability Combination Skin3%

“so this is very abnormal for my skin”

Dilute/Watery2%

“Too watery”

Top return reasons

Value For Money15%

Functionality-Overall9%

Moist/Dry8%

Motor Power8%

Advertised Vs Actual Product7%

Texture/Consistency-Overall6%

Leak-Proof6%

Adhesion/Stickiness5%

Size-Overall5%

Skin Health4%

Common questions

Is cosrx set profitable to sell on Amazon United States?: The niche generates $132K/yr across 7 tracked products. 90-day search growth is -6.2%. Flapen's verdict: Skip it (38/100).
How competitive is the cosrx set niche?: 2 brands and 19 sellers compete. The top 5 products take 89% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in cosrx set?: Top complaints mined from reviews: Allergies, Functionality-Overall, Skin Health. The return rate is 1.0%.
When does demand for cosrx set peak?: Demand peaks in May–Dec; the busiest month runs 2.8× the quietest.
What does it cost to enter the cosrx set niche?: Listings span $9.80–$32.40; the average listing price is $20.07 (sweet spot $15–$100). The average incumbent carries 17,444 reviews — the moat a new listing must climb.