glutathione serum
Worth a lookShows a sweet-spot price point ($28.83 avg), but brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list.
Avg price
Incredible$28.83avg listing price — sweet spot $15–$100
Market size
Good$747K$747K/yr · 486K searches
Returns
Good2.1%return rate — above 5% kills the launch gate
Conversion
Good5.3%search→purchase rate — share of searches ending in a sale
Price range
Good$11.88–$172.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+19.6%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay2,245.79avg incumbent reviews — the moat a new listing must climb
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Brand share
Bad96%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, glutathione serum is a $747K/yr Amazon United States market (486K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Apr–Nov. Verdict: Worth a look — 50/100.
Data updated Jul 16, 2026 · scored weekly · How we score niches
glutathione serum market data
- Units sold / yr
- 25K–30K
- avg 2,000–2,500/product
- Revenue / yr
- $721K–$865K
- units × avg price
- Conversion rate
- 5.3%
- Avg BSR
- #446
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 86%
- Out of stock
- 7.7%
- Avg brand age
- 43 months
- Avg seller age
- 122 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
7 rising
Sellers
43
Top-5 brand share
96%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
2%
- numbuzin50%
- medicube26%
- Abib8%
- ma:nyo6%
- TOSOWOONG6%
- Grospe2%
- Open — no brand owns it (1 brand, 2%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +19.6% search growth over the last 90 days.Peak months: Apr, Nov · busiest ÷ quietest = 2.4×
Top glutathione serum search terms
- glutathione serum119K/yr
- numbuzin 552K/yr
- numbuzin no.582K/yr
- medicube age r55K/yr
- glutathione serum for face15K/yr
- medicube glutathione glow serum13K/yr
- age r medicube12K/yr
- abib glutathione dark spot serum26K/yr
- numbuzin vitamin c10K/yr
- glutathione skincare11K/yr
Top glutathione 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
numbuzin No.5 Vitamin Concentrated Serum Dark Spot Care Glutathione & Vitamin Serum Korean Skincare Tranexamic Acid 4% Niacinamide 5% for a Radiant-Looking Glow 1.01 fl oz
numbuzin$17.474.5★5,283 rev
medicube AGE-R Glutathione Glow Serum
medicube$23.554.5★700 rev
numbuzin No.5 Glutathione TXA Dark Spot Ampoule Targeted Tone Care Concentrate for Dark Spots & Uneven Skin Tranexamic Acid Niacinamide Vitamin Tree Water Korean Skincare 10.7g
numbuzin$19.704.5★5,283 rev
medicube Age-R Glutathione Glow Milky Toner
medicube$17.814.6★1,266 rev
Abib Glutathiosome Dark Spot Serum Vita drop 1.69 fl.oz. Korean Skincare Dark Spot Hyperpigmentation Treatment Lightweight Hydrating Serum for Sensitive Uneven Skin
Abib$17.804.3★772 rev
Newest
by launch date
MANYO Glutathione 7 Dark Spot Serum Niacinamide Serum for Uneven Skin Tone Dark Spot Remover for Face & Radiance Booster Korean Skincare 1.01 fl.oz (30ml)
ma:nyo$18.27156 rev
numbuzin No.5 Glutathione TXA Dark Spot Ampoule Targeted Tone Care Concentrate for Dark Spots & Uneven Skin Tranexamic Acid Niacinamide Vitamin Tree Water Korean Skincare 10.7g
numbuzin$19.705,283 rev
Glutathione Serum 20000ppm Glutathione and Hyaluronic Acid Korean Face Serums for Women Dark Spot Serum Improve Skin Elasticity Reduces Hyperpigmentation Fine Lines & Wrinkles
Grospe$11.8816 rev
The Ordinary GF 15% Solution Anti-Aging Formula for Visible Skin & Wrinkle Repair 1 Fl Oz
The Ordinary$14.962,226 rev
medicube Age-R Glutathione Glow Milky Toner
medicube$17.811,266 rev
Trending
90-day click momentumMANYO Glutathione 7 Dark Spot Serum Niacinamide Serum for Uneven Skin Tone Dark Spot Remover for Face & Radiance Booster Korean Skincare 1.01 fl.oz (30ml)
ma:nyo$18.274.4★
The Ordinary GF 15% Solution Anti-Aging Formula for Visible Skin & Wrinkle Repair 1 Fl Oz
The Ordinary$14.964.6★
numbuzin No.5 Glutathione TXA Dark Spot Ampoule Targeted Tone Care Concentrate for Dark Spots & Uneven Skin Tranexamic Acid Niacinamide Vitamin Tree Water Korean Skincare 10.7g
numbuzin$19.704.5★
Glutathione Serum 20000ppm Glutathione and Hyaluronic Acid Korean Face Serums for Women Dark Spot Serum Improve Skin Elasticity Reduces Hyperpigmentation Fine Lines & Wrinkles
Grospe$11.884.5★
medicube AGE-R Glutathione Glow Serum
medicube$23.554.5★
What buyers say about glutathione serum
What buyers praise and complain about, mined from review topics.What buyers love
“It helps skin turn pretty”
“overall its a high-quality device”
“nice and smooth”
“Very hydrating”
“Gives glow”
“absorbs really well”
“reasonably priced”
“Love the smell”
“This is so perfect for dry skin”
“Easy to use”
What buyers complain about
“Unpleasant Smell”
“No results”
“Caused a rash”
“Waste of money”
“Made my skin worse”
“I dont see any skin improvements”
“It doesnt seem durable at all”
“Too sticky”
“Skin feels tighter. but not dry”
“Not very hydrating”
Top return reasons
Common questions
- Is glutathione serum profitable to sell on Amazon United States?
- The niche generates $747K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +19.6%. Flapen's verdict: Worth a look (50/100).
- How competitive is the glutathione serum niche?
- 7 brands and 43 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in glutathione serum?
- Top complaints mined from reviews: Smell, Functionality-Overall, Allergies. The return rate is 2.1%.
- When does demand for glutathione serum peak?
- Demand peaks in Apr–Nov; the busiest month runs 2.4× the quietest.
- What does it cost to enter the glutathione serum niche?
- Listings span $11.88–$172.32; the average listing price is $28.83 (sweet spot $15–$100). The average incumbent carries 2,246 reviews — the moat a new listing must climb.