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reduced glutathione

Skip it

Soft demand (-33.7% this quarter) — this niche doesn't clear our bar today.

Market size 38Growth 8Conversion 87Competition 24Returns 100Price range 93Avg price 95Brand share 11Review moat 33Quality gap 37

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$31.86

avg listing price — sweet spot $15–$100

Price range

Great$13.83–$67.63

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

Conversion

Great10.1%

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

Market size

Okay$190K

$190K/yr · 59K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay3,231.2

avg incumbent reviews — the moat a new listing must climb

Competition

Bad71%

top-5 click share — a locked-up shelf

Brand share

Bad95%

top-5 brand share — brand-locked demand

Growth

Bad-33.7%

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

According to Flapen's Amazon United States niche tracking, reduced glutathione is a $190K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 45/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

reduced glutathione market data

Units sold / yr
5K–6K
avg 250–500/product
Revenue / yr
$159K–$191K
units × avg price
Conversion rate
10.1%
Avg BSR
#1,058
Page quality
0%
Prime
100%
Sponsored
67%
Out of stock
0.0%
Avg brand age
79 months
Avg seller age
169 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

33

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

2%

  • NOW Foods78%
  • Pure Encapsulations6%
  • Jarrow Formulas5%
  • Nutricost3%
  • NusaPure3%
  • Micro Ingredients2%
  • Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 98 weeks — -33.7% search growth over the last 90 days.
2K2KSpike '24Prime Day '25Spike '25Black Friday '25Spike '26DecMarJunAugNovMarMay

Peak months: Jan, Feb · busiest ÷ quietest = 3.0×

Top reduced glutathione search terms

  • now glutathione26K/yr
  • reduced glutathione12K/yr
  • now glutathione 500mg8K/yr
  • glutathione reduced6K/yr
  • glutathione now5K/yr
  • now foods glutathione2K/yr
All search terms

Top reduced glutathione 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.

0%10%$19K20%$38K30%$57K40%$76K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about reduced glutathione

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

What buyers love

Quality-Overall17%

“Better than the other one I used”

Energy Level7%

“energy wise I pretty good”

Value For Money6%

“Great value”

Brightness/Shine/Glow5%

“glowing”

Skin Health5%

“Helped clear my skin”

Advertised Vs Actual Product5%

“As described”

Nutritional Content4%

“Good supplements”

Ease Of Use4%

“Effective with consistent use”

Ease Of Chewing/Swallowing4%

“its easy to swallow”

Inflammation3%

“This is a great anti inflammatory product”

What buyers complain about

Dosage11%

“Seems to be a error with the listed dose”

Smell11%

“the body odor disappeared”

Functionality-Overall9%

“May not work sadly”

Value For Money7%

“That price is higher”

Taste-Overall7%

“Theres no taste”

Energy Level6%

“My energy has never been this high before”

Side Effects6%

“Bad side effects”

Calcium5%

“I wish there was more glutathione per capsule so you dont have to take so many to get the dosage”

Muscle Pain Relief5%

“muscle soreness after long bike sessions”

Acid Regulator/Stomach Ache Relief5%

“Our stomach acid makes this product less effective”

Top return reasons

Color Fading/Discoloration17%
Functionality-Overall17%
Charging17%
Joint Pain17%
Ingredients-Overall17%
Ethically/Sustainably Sourced17%

Common questions

Is reduced glutathione profitable to sell on Amazon United States?
The niche generates $190K/yr across 15 tracked products. 90-day search growth is -33.7%. Flapen's verdict: Skip it (45/100).
How competitive is the reduced glutathione niche?
7 brands and 33 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in reduced glutathione?
Top complaints mined from reviews: Dosage, Smell, Functionality-Overall. The return rate is 0.0%.
When does demand for reduced glutathione peak?
Demand peaks in Jan–Feb; the busiest month runs 3.0× the quietest.
What does it cost to enter the reduced glutathione niche?
Listings span $13.83–$67.63; the average listing price is $31.86 (sweet spot $15–$100). The average incumbent carries 3,231 reviews — the moat a new listing must climb.