korean hyaluronic acid serum
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Price range
Great$12.22–$41.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$19.57avg listing price — sweet spot $15–$100
Market size
Great$998K$998K/yr · 449K searches
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad12,909.24avg incumbent reviews — the moat a new listing must climb
Growth
Bad-14.4%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, korean hyaluronic acid serum is a $998K/yr Amazon United States market (449K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul–Dec. Verdict: Skip it — 49/100.
Data updated Jul 16, 2026 · scored weekly · How we score niches
korean hyaluronic acid serum market data
- Units sold / yr
- 40K–50K
- avg 2,500–3,000/product
- Revenue / yr
- $783K–$979K
- units × avg price
- Conversion rate
- 11.4%
- Avg BSR
- #297
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 76%
- Out of stock
- 1.7%
- Avg brand age
- 59 months
- Avg seller age
- 118 days
Competition & brand share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.Brands
2 flat
Sellers
22
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
0%
- COSRX82%
- medicube18%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -14.4% search growth over the last 90 days.Peak months: Jul, Dec · busiest ÷ quietest = 4.2×
Top korean hyaluronic acid serum search terms
- cosrx moisturizer209K/yr
- medicube hyaluronic acid57K/yr
- cosrx hyaluronic acid38K/yr
- cosrx moisturizer for face24K/yr
- cosrx cream17K/yr
- cosrx hyaluronic acid intensive cream21K/yr
- cosrx face moisturizer11K/yr
- medicube hyaluronic7K/yr
- cosrx night cream6K/yr
- medicube hyaluronic acid serum8K/yr
Top korean hyaluronic acid serum 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.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
COSRX Hyaluronic Acid Moisturizing Cream Lightweight Non-Greasy Long-lasting Hydration for Glass Skin Daily Moisturizer for Sensitive Skin Moisture Barrier Repair Korean Skin Care 3.52 oz
COSRX$19.244.6★8,487 rev
COSRX Ceramide Skin Barrier Moisturizer for Face with 7 Ceramides Hyaluronic Acid & Panthenol Barrier Repair Face Cream for Dry & Sensitive Skin 2.7 oz Korean Face Moisturizer Korean Skin Care
COSRX$20.444.7★1,281 rev
COSRX Snail Mucin 92% Face Moisturizer 3.52 Oz Lightweight Moisturing Cream for Soft Glowy Skin Korean Skin Care Korean Moisturizer Face Cream
COSRX$17.574.5★61,320 rev
medicube Hyaluronic Multi Peptide PDRN Serum | Lightweight Hydrating Serum
medicube$17.164.7★791 rev
COSRX Oil Free Lotion with Birch Sap Daily Acne Facial Moisturizer Hydrating Moisturizer for All Skin Types Korean Skin Care 3.38 fl.oz / 100ml
COSRX$16.994.6★7,923 rev
Newest
by launch date
medicube Capsule Cream with Hyaluronic Acid | 120H Lasting Hydration Barrier Care Calming Daily Facial Moisturizer For All Skin Types | Panthenol & Ceramides | Korean Skincare 1.94 oz
medicube$17.87801 rev
medicube Jelly Cream with Hyaluronic Acid | Daily Moisturizer for All Skin Types | Long-lasting Hydration with Hyaluronic Acid Ceramides Multi Peptides | Supports Skins Natural Barrier | 1.69 fl.oz
medicube$12.221,904 rev
COSRX Skin Barrier Moisturizing Body Cream | 100-Hour Hydration For Dry to Extremely Dry Skin with Ceramide & Hyaluronic Acid | Unscented Non-Greasy | 15.2 fl oz Korean Skin Care
COSRX$21.651,281 rev
COSRX Ceramide Skin Barrier Moisturizer for Face with 7 Ceramides Hyaluronic Acid & Panthenol Barrier Repair Face Cream for Dry & Sensitive Skin 2.7 oz Korean Face Moisturizer Korean Skin Care
COSRX$20.441,281 rev
medicube Hyaluronic Multi Peptide PDRN Serum | Lightweight Hydrating Serum
medicube$17.16791 rev
Trending
90-day click momentummedicube Jelly Cream with Hyaluronic Acid | Daily Moisturizer for All Skin Types | Long-lasting Hydration with Hyaluronic Acid Ceramides Multi Peptides | Supports Skins Natural Barrier | 1.69 fl.oz
medicube$12.224.6★
COSRX AC Collection Lightweight Soothing Moisturizer 80ml / 2.70 fl.oz | Aloe Vera Leaves Extract 71.2% | Animal Testing Free Paraben Free
COSRX$15.214.5★
COSRX Ceramide Skin Barrier Moisturizer for Face with 7 Ceramides Hyaluronic Acid & Panthenol Barrier Repair Face Cream for Dry & Sensitive Skin 2.7 oz Korean Face Moisturizer Korean Skin Care
COSRX$20.444.7★
medicube Hyaluronic Multi Peptide PDRN Serum | Lightweight Hydrating Serum
medicube$17.164.7★
COSRX Pure Sodium Hyaluronic Acid 3% Serum Hydratying & Moisture Boosting for Fine Lines & Wrinkles Repair Dry Skin 0.67fl.oz/20ml No Artificial Fragrance Korean Skin Care
COSRX$19.404.3★
What buyers say about korean hyaluronic acid serum
What buyers praise and complain about, mined from review topics.What buyers love
“Super hydrating”
“Works great on my sensitive skin”
“Excellent product”
“My skin is so soft”
“they are affordable”
“helps my dry skin”
“Absorbs good”
“Glowing skin”
“Its a great very lightweight moisturizer”
“Smells nice”
What buyers complain about
“Not moisturizing”
“Skin irritation”
“still sticky”
“NOT for dry skin”
“My face began burning”
“Not effective”
“Not worth the price”
“The smell is odd”
“Made my face very oily”
“it's like a really thick layer”
Top return reasons
Common questions
- Is korean hyaluronic acid serum profitable to sell on Amazon United States?
- The niche generates $998K/yr across 17 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -14.4%. Flapen's verdict: Skip it (49/100).
- How competitive is the korean hyaluronic acid serum niche?
- 2 brands and 22 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in korean hyaluronic acid serum?
- Top complaints mined from reviews: Moist/Dry, Allergies, Adhesion/Stickiness. The return rate is 0.9%.
- When does demand for korean hyaluronic acid serum peak?
- Demand peaks in Jul–Dec; the busiest month runs 4.2× the quietest.
- What does it cost to enter the korean hyaluronic acid serum niche?
- Listings span $12.22–$41.38; the average listing price is $19.57 (sweet spot $15–$100). The average incumbent carries 12,909 reviews — the moat a new listing must climb.