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L Glutamine Powder

L Glutamine Powder shows low returns (0.0%), but a concentrated shelf (top 5 take 69% of clicks) keeps it on the watch list.

Flapen Score

55
Worth a look
Market size 35Growth 52Conversion 95Competition 26Returns 100Price range 74Avg price 78Brand share 44Review moat 53Quality gap 40
This niche Category average

Is L Glutamine Powder profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, L Glutamine Powder is a £168K/yr Amazon United Kingdom market (84K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 55/100.

L Glutamine Powder: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved +23.2% over the last 90 days and 12.4% of searches end in a purchase.

£168K

revenue / yr

Units sold / yr13K
Search volume / yr+23.2%84K
Conversion rate12.4%
Avg price£16.11

Who owns the niche?

The top 5 brands hold 79% of demand, so 21% of the market is open.

21%

open market share

Brands · sellers12 · 39
Top-5 product click share69%
Open market21%
Avg brand age75 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.

0/100

page quality · 15 products

Sponsored placement80%
New entrants (1y)2· 2 succeeded
Avg rating4.5★
Avg reviews1,376

Top L Glutamine Powder products & what they sell for

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

Competition: brands, sellers & click share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

£0£17K£34K£50K£67K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

12 falling

Sellers

39

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

16%

  • Applied Nutrition40%
  • Bulk19%
  • ALPHA018%
  • Warrior6%
  • Nutricost6%
  • Premium Body Nutrition6%
  • Open — no brand owns it (6 brands, 16%)

L Glutamine Powder demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume84KCVR12.4%Products15Brands12Top 5 Brands79%OOS Rate0.0%Rating4.5★Reviews1,376Avg BSR#14
2K2KSpike '25Prime Day '25Spike '26Prime Day '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top L Glutamine Powder search terms shoppers use

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

  • l glutamine powder44K/yr
  • glutamine powder32K/yr
  • l-glutamine powder8K/yr

What reviews say buyers love and hate about L Glutamine Powder

What buyers mention most, as a share of all reviews.

What buyers love

87% of reviews
Quality-Overall32%

Great quality glutamine supplement

Value For Money17%

like the price

Taste-Overall10%

very slight salty taste

Blend/Ratio6%

Mixes & tastes ok

Regulates Digestion4%

It has definitely helped reduce bloating

What buyers complain about

78% of reviews
Smell28%

Chemical smell

Taste-Overall18%

it tastes fishy

Functionality-Overall10%

Does not work

Value For Money8%

Waste of money

Dosage5%

any glutamine supplement can have negative side effects not sure if its worth continuing to take it or not

Common L Glutamine Powder questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores L Glutamine Powder 55/100 on Amazon United Kingdom — Worth a look. The niche generates £168K/yr across 15 tracked products. 2 of 2 products launched in the last 360 days are still selling. Search demand moved +23.2% over the last 90 days.
Search demand for L Glutamine Powder on Amazon United Kingdom is steady year-round — the busiest month runs 1.4× the quietest.