---
title: "L Glutamine Powder — £168K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/l-glutamine-powder"
last_updated: "2026-07-31T16:25:31.609Z"
locale: en
meta:
description: "Niche score 55/100 · £168K/yr market · 84K searches/yr. A concentrated shelf (top 5 take 69% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · £168K/yr market · 84K searches/yr. A concentrated shelf (top 5 take 69% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "L Glutamine Powder — £168K/yr Amazon UK Niche (2026) - Flapen"
---
# **l glutamine powder**
**Worth a look**
Shows low returns (0.0%), but a concentrated shelf (top 5 take 69% of clicks) keeps it on the watch list.
Market size 35Growth 52Conversion 95Competition 26Returns 100Price range 74Avg price 78Brand share 44Review moat 53Quality gap 40
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.4%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****£16.11**
avg listing price — sweet spot $15–$100
**Price range**
**Good****£4.27–£45.38**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,375.67**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+23.2%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£168K**
£168K/yr · 84K searches
**Competition**
**Okay****69%**
top-5 click share — leaders hold, buyers still browse
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500")
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.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **l glutamine powder market data**
- **Units sold / yr**
- **10K–13K**
- avg 250–500/product
- **Revenue / yr**
- **£161K–£201K**
- units × avg price
- **Conversion rate**
- **12.4%**
- **Avg BSR**
- **#14**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **75 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.
**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%)
## **Demand & seasonality**
Weekly Amazon search volume, last 101 weeks — +23.2% search growth over the last 90 days.
2K2KSpike '25Prime Day '25Spike '26Prime Day '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/l-glutamine-powder/trend)
## **Top l glutamine powder search terms**
- **l glutamine powder**44K/yr+42.4%9.6% conv. - **glutamine powder**32K/yr-2.6%11.2% conv. - **l-glutamine powder**8K/yr+25.4%12.0% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/l-glutamine-powder/search-terms)
## **Top l glutamine powder 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%£17K20%£34K30%£50K40%£67K101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (250g - 50 Servings)**Applied Nutrition**£9.66**4.6★189 rev](https://www.amazon.co.uk/dp/B0D2DRZNJ6) [2**Bulk Pure L-Glutamine Powder Unflavoured 500 g Packaging May Vary**Bulk**£12.30**4.5★3,339 rev](https://www.amazon.co.uk/dp/B00IZD2MDM) [3**Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (500g - 100 Servings)**Applied Nutrition**£14.94**4.6★189 rev](https://www.amazon.co.uk/dp/B0D386BGSJ) [4**Warrior Glutamine 500g - Pure Micronised L-Glutamine Powder - Amino Acid - Muscle Growth & Recovery Supplement- Gut Health - Mix in Protein - Pre and Post Workout - 100 Servings (Unflavoured)**Warrior**£10.87**4.5★295 rev](https://www.amazon.co.uk/dp/B0DYFBN26C) [5**L-Glutamine Powder 500g Unflavoured Vegan Fermented Amino Acid 100% Pure Resealable and Recyclable Pouch by Alpha01**ALPHA01**£10.80**4.6★192 rev](https://www.amazon.co.uk/dp/B0CD7W1VG6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance**Ancient + Brave**£29.40**59 rev9mo ago](https://www.amazon.co.uk/dp/B0FV4D2Q66) [**Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (500g - 100 Servings)**Applied Nutrition**£14.94**189 rev9mo ago](https://www.amazon.co.uk/dp/B0D386BGSJ) [**Warrior Glutamine 500g - Pure Micronised L-Glutamine Powder - Amino Acid - Muscle Growth & Recovery Supplement- Gut Health - Mix in Protein - Pre and Post Workout - 100 Servings (Unflavoured)**Warrior**£10.87**295 rev1y ago](https://www.amazon.co.uk/dp/B0DYFBN26C) [**Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (250g - 50 Servings)**Applied Nutrition**£9.66**189 rev2y ago](https://www.amazon.co.uk/dp/B0D2DRZNJ6) [**L-Glutamine Powder 500g Unflavoured Vegan Fermented Amino Acid 100% Pure Resealable and Recyclable Pouch by Alpha01**ALPHA01**£10.80**192 rev2y ago](https://www.amazon.co.uk/dp/B0CD7W1VG6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ancient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance**Ancient + Brave**£29.40**4.7★**▲ 78%**](https://www.amazon.co.uk/dp/B0FV4D2Q66) [**UKHealthHouse Pure Glutamine Powder Amino Acids - 100% L-Glutamine Recovery Protein Building Blocks Food Supplement for Muscle Repair Restore Gut (100g)**UKHealthHouse**£4.27**4.2★**▲ 46%**](https://www.amazon.co.uk/dp/B0BFXRZBFM) [**Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (250g - 50 Servings)**Applied Nutrition**£9.66**4.6★**▲ 22%**](https://www.amazon.co.uk/dp/B0D2DRZNJ6) [**Thorne L-Glutamine Powder 18.1 Oz (90 Servings)**THORNE**£45.38**4.6★**▲ 20%**](https://www.amazon.co.uk/dp/B000FGWDL8) [**Warrior Glutamine 500g - Pure Micronised L-Glutamine Powder - Amino Acid - Muscle Growth & Recovery Supplement- Gut Health - Mix in Protein - Pre and Post Workout - 100 Servings (Unflavoured)**Warrior**£10.87**4.5★**▲ 18%**](https://www.amazon.co.uk/dp/B0DYFBN26C)
**~~View all trending →~~**
## **What buyers say about l glutamine powder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**32%
*“Great quality glutamine supplement”*
**Value For Money**17%
*“like the price”*
**Taste-Overall**10%
*“very slight salty taste”*
**Blend/Ratio**6%
*“Mixes & tastes ok”*
**Regulates Digestion**4%
*“It has definitely helped reduce bloating”*
**Support-Overall**4%
*“Bought this so that I could have support after a medical issue”*
**Ease Of Use**4%
*“Great and easy to take”*
**Solubility**4%
*“It dissolves well”*
**Nutritional Content**4%
*“Real-World Nutrition 🌎”*
**Acid Regulator/Stomach Ache Relief**2%
*“Great stomach support and repair”*
### **What buyers complain about **
**Smell**28%
*“Chemical smell”*
**Taste-Overall**18%
*“it tastes fishy”*
**Functionality-Overall**10%
*“Does not work”*
**Value For Money**8%
*“Waste of money”*
**Dosage**5%
*“any glutamine supplement can have negative side effects not sure if its worth continuing to take it or not”*
**Salt Content**3%
*“very slight salty taste”*
**Bitter**3%
*“Had a really bitter taste”*
**Allergies**3%
*“consequently acne caused by certain food sensitivities”*
## **Common questions**
- **Is l glutamine powder profitable to sell on Amazon United Kingdom?**
- The niche generates £168K/yr across 15 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +23.2%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the l glutamine powder niche?**
- 12 brands and 39 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in l glutamine powder?**
- Top complaints mined from reviews: Smell, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
- **When does demand for l glutamine powder peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the l glutamine powder niche?**
- Listings span £4.27–£45.38; the average listing price is £16.11 (sweet spot $15–$100). The average incumbent carries 1,376 reviews — the moat a new listing must climb.
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