Is l glutathione profitable to sell on Amazon United States?

The niche generates $189K/yr across 45 tracked products. 8 of 8 products launched in the last 360 days are still selling. 90-day search growth is +14.9%. Flapen's verdict: Worth a look (66/100).

How competitive is the l glutathione niche?

33 brands and 127 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 49% of demand.

What do buyers complain about in l glutathione?

Top complaints mined from reviews: Taste-Overall, Smell, Value For Money. The return rate is 0.0%.

When does demand for l glutathione peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the l glutathione niche?

Listings span $9.35–$110.13; the average listing price is $30.43 (sweet spot $15–$100). The average incumbent carries 1,519 reviews — the moat a new listing must climb.

L Glutathione

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$30.43

avg listing price — sweet spot $15–$100

Brand share

Great49%

top-5 brand share — no brand owns this niche

Price range

Great$9.35–$110.13

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

Conversion

Good6.9%

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

Competition

Good40%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay1,519.2

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Okay+14.9%

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

Market size

Okay$189K

$189K/yr · 89K searches

Signals No Dominant Brand

Is l glutathione profitable on Amazon?

According to Flapen's Amazon United States niche tracking, l glutathione is a $189K/yr Amazon United States market (89K searches/yr). The top 5 brands hold 49% of demand. Verdict: Worth a look — 66/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

l glutathione market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: $152K–$183K; units × avg price
Conversion rate: 6.9%
Avg BSR: #517
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 2.6%
Avg brand age: 63 months
Avg seller age: 157 days

Competition: brands, sellers & click share

The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.

Brands

33 rising

Sellers

127

Top-5 brand share

49%

Top 20: 87%

Top-5 click share

40%

Top 20: 76%

Open market

48%

NOW Foods19%
Alpha Flow11%
Nutricost8%
Pure Encapsulations7%
Prunucis4%
Rho Nutrition4%

l glutathione demand & seasonality

Weekly Amazon search volume, last 99 weeks — +14.9% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top l glutathione search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

l glutathione49K/yr +14.9%4.3% conv.
l-glutathione24K/yr +18.1%5.1% conv.
l glutathione supplement15K/yr +10.5%4.1% conv.
l glutathione 500mg1K/yr -5.2%2.9% conv.
l-glutathione 500mg capsules164/yr +38.1%0.0% conv.

All search terms

Top l glutathione products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Liposomal Glutathione Supplement 1000MG + 750MG- Glutathione Liposomal with VIT C + Phospholipid Antioxidant Complex - Liver Detox and Immune Support Supplement - 120 Caps - Powder&Liquid Alternative

Alpha Flow$23.524.5★1,218 rev

NOW Foods Supplements Glutathione 500 mg With Milk Thistle Extract & Alpha Lipoic Acid Free Radical Neutralizer* 60 Veg Capsules

NOW Foods$20.314.6★10,419 rev

NOW Foods Supplements L-Glutamine 500 mg Nitrogen Transporter* Amino Acid 120 Veg Capsules

NOW Foods$9.354.5★13,166 rev

Nutricost Glutathione Capsules 500mg 240 Capsules - Gluten Free GMO Free

Nutricost$40.584.7★1,571 rev

Pure Encapsulations Liposomal Glutathione - Immune Support & Liver Detox* - Antioxidant Protection - with Setria Glutathione - Non-GMO - 30 Softgel Capsules

Pure Encapsulations$63.724.6★1,151 rev

Newest

by launch date

Rosabella Liposomal Glutathione 500mg High Absorption Glutathione Supplement Antioxidant Support Cellular Health & Detox Support 60 Capsules 30 Day Supply Daily Antioxidant Capsules

Rosabella$13.1497 rev

3mo ago

Cata-Kor Liposomal Glutathione 1000mg Ultra High Absorption with Resveratrol Vitamin C Selenium & Vitamin B2 Antioxidant Support for Immune Support & Healthy Aging (60 Count (Pack of 1))

Cata-Kor$21.51220 rev

4mo ago

Liposomal Glutathione Supplement Liquid Drops 5-in-1 Ultra Strength L-Glutathione 1750mg w. Milk Thistle Vitamin C NAC Alpha Lipoic Acid for Skin Whitening Liver Detox Antioxidant Immune Brain Health

Scibalia$11.7552 rev

7mo ago

CYMBIOTIKA Liposomal Glutathione Supplement PQQ CoQ10 & Antioxidants for Detox Brain Energy Immune Support Advanced Absorption for Cellular Health & Longevity Citrus Vanilla 1 Month Supply

CYMBIOTIKA$70.19170 rev

9mo ago

Liposomal Glutathione Supplement High-Potency Antioxidant L-Glutathione Supplement Collagen Resveratrol Hyaluronic Acid Supports Skin Health & Overall Wellness 2550mg Active Ingredients 60 Softgels

senseOfeeling$15.4635 rev

11mo ago

What reviews say buyers love and hate about l glutathione

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

What buyers love

Quality-Overall15%

“Excellent product”

Taste-Overall8%

“Good Tasting”

Energy Level5%

“More energy”

Skin Health5%

“improvement of my skin”

Value For Money4%

“Good product for price”

Ease Of Use4%

“easy to administer”

Vitamin4%

“Excellent supplement”

Advertised Vs Actual Product3%

“As advertised”

Ease Of Chewing/Swallowing3%

“don't pose issues in swallowing”

Efficiency3%

“Works well”

What buyers complain about

Taste-Overall19%

“the taste is horrific”

Smell10%

“Smells rancid”

Value For Money6%

“Not worth it”

Dosage4%

“Number of servings per container is incorrect”

Functionality-Overall4%

“Did not work”

Side Effects3%

“Bad side effect”

Allergies2%

“Allergic reaction”

Flavor2%

“Maybe the flavoring is inconsistent bottle to bottle”

Size-Overall2%

“They are big”

Acid Regulator/Stomach Ache Relief2%

“A lot of supplements are hard on my stomach”

Top return reasons

Taste-Overall23%

Advertised Vs Actual Product10%

Quality-Overall7%

Value For Money6%

Functionality-Overall6%

Smell6%

Leak-Proof5%

Regulates Digestion4%

Adhesion/Stickiness2%

Ethically/Sustainably Sourced2%

Common l glutathione questions

Is l glutathione profitable to sell on Amazon United States?: The niche generates $189K/yr across 45 tracked products. 8 of 8 products launched in the last 360 days are still selling. 90-day search growth is +14.9%. Flapen's verdict: Worth a look (66/100).
How competitive is the l glutathione niche?: 33 brands and 127 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 49% of demand.
What do buyers complain about in l glutathione?: Top complaints mined from reviews: Taste-Overall, Smell, Value For Money. The return rate is 0.0%.
When does demand for l glutathione peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the l glutathione niche?: Listings span $9.35–$110.13; the average listing price is $30.43 (sweet spot $15–$100). The average incumbent carries 1,519 reviews — the moat a new listing must climb.