---
title: "L Glutamine — £345K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/l-glutamine"
last_updated: "2026-07-31T14:03:39.725Z"
locale: en
meta:
description: "Niche score 54/100 · £345K/yr market · 281K searches/yr · £10.72 avg price. Soft demand (+5.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · £345K/yr market · 281K searches/yr · £10.72 avg price. Soft demand (+5.7% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "L Glutamine — £345K/yr Amazon UK Niche (2026) - Flapen"
---
# **l glutamine**
**Worth a look**
Shows low returns (0.0%), but soft demand (+5.7% this quarter) keeps it on the watch list.
Market size 53Growth 32Conversion 93Competition 36Returns 100Price range 43Avg price 39Brand share 55Review moat 54Quality gap 38
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.5%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****1,346.39**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****£345K**
£345K/yr · 281K searches
**Price range**
**Okay****£3.80–£23.32**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****£10.72**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+5.7%**
90-day search growth — must beat 0% to launch
**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 is a £345K/yr Amazon United Kingdom market (281K searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **l glutamine market data**
- **Units sold / yr**
- **30K–40K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£322K–£429K**
- units × avg price
- **Conversion rate**
- **11.5%**
- **Avg BSR**
- **#11**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.5%**
- **Avg brand age**
- **68 months**
- **Avg seller age**
- **162 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**36**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**23%**
- Applied Nutrition37% - Bulk17% - swiss bioenergetics7% - Solgar6% - Nutrivo6% - ALPHA015%
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — +5.7% search growth over the last 90 days.
6K4KHoliday '24Prime Day '25 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/l-glutamine/trend)
## **Top l glutamine search terms**
- **l glutamine**78K/yr+12.0%9.5% conv. - **glutamine**78K/yr-13.7%10.3% conv. - **l glutamine powder**44K/yr+42.4%9.4% conv. - **glutamine powder**32K/yr-2.6%10.9% conv. - **l-glutamine**24K/yr-11.1%10.0% conv. - **l-glutamine powder**8K/yr+25.4%11.6% conv. - **l glutamine powder for gut health**5K/yr+95.5%6.2% conv. - **l-glutamine nutritional supplements**8K/yr-21.1%5.4% conv. - **lglutamine**3K/yr-21.7%12.6% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/l-glutamine/search-terms)
## **Top l glutamine 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%£35K20%£69K30%£104K40%£138K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 18 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**L-Glutamine 500mg 90 Capsules - Pure Amino Acid with no fillers or Binders - Suitable for Vegetarians and Vegans Exclusively Manufactured in The UK**swiss bioenergetics**£7.22**4.5★784 rev](https://www.amazon.co.uk/dp/B082X6PH3R) [5**Solgar L-Glutamine 1000 mg Tablets - Pack of 60 - Supports Muscle Function - for Active Lifestyles - Great Addition to Whey Powder - Vegan**Solgar**£12.73**4.6★1,228 rev](https://www.amazon.co.uk/dp/B003HL541O)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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) [**Solaray L-Glutamine Free Form 100 Vegan Capsules 500mg per Capsule**SOLARAY**£10.96**60 rev1y ago](https://www.amazon.co.uk/dp/B0DLWR54FF) [**L-Glutamine 800mg Capsules | 90 Capsules Per Pouch | L-Glutamine Nutritional Supplements | Supports Muscle and Gut Health | Good Alternative to Powder and Tablets | Vegan & UK Made**Nutrivo**£7.30**176 rev2y ago](https://www.amazon.co.uk/dp/B0D9QF998W) [**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)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nuke Nutrition L Glutamine Capsules 800mg - 60 Capsules - L-Glutamine Nutritional Supplements to Reinforce Gut & Intestinal Health - Glutamine to Fortify Immunity - Glutamine Capsules for Recovery**Nuke Nutrition**£3.80**4.5★**▲ 255%**](https://www.amazon.co.uk/dp/B09GKZ5ZY8) [**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★**▲ 50%**](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★**▲ 41%**](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**4.6★**▲ 19%**](https://www.amazon.co.uk/dp/B0CD7W1VG6) [**L-Glutamine 500mg 90 Capsules - Pure Amino Acid with no fillers or Binders - Suitable for Vegetarians and Vegans Exclusively Manufactured in The UK**swiss bioenergetics**£7.22**4.5★**▲ 16%**](https://www.amazon.co.uk/dp/B082X6PH3R)
**~~View all trending →~~**
## **What buyers say about l glutamine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“Great quality glutamine supplement”*
**Value For Money**13%
*“its usually quite affordable”*
**Regulates Digestion**10%
*“It has definitely helped reduce bloating”*
**Vitamin**8%
*“Had this with other supplements”*
**Taste-Overall**7%
*“very slight salty taste”*
**Nutritional Content**6%
*“In terms of performance, its solid for recovery support and general supplementation, especially if you train regularly”*
**Advertised Vs Actual Product**5%
*“Item as described”*
**Blend/Ratio**4%
*“Mixes & tastes ok”*
**Ease Of Use**4%
*“doesnt take up much space”*
**Solubility**2%
*“Tastes good and dissolves well in drinks”*
### **What buyers complain about **
**Smell**19%
*“Chemical smell”*
**Taste-Overall**10%
*“it tastes fishy”*
**Value For Money**9%
*“cannot get to the shops or afford the more expensive versions”*
**Functionality-Overall**7%
*“Does not work”*
**Muscle Pain Relief**7%
*“yet I still not feeling its helping reducing muscle sore after workout”*
**Ease Of Chewing/Swallowing**4%
*“to swallow due to the odd shape”*
**Size-Overall**4%
*“These tablets are huge”*
**Dosage**3%
*“If you are the sort of person who can what are a paracetamol then maybe you might have a problem taking them”*
**Salt Content**2%
*“very slight salty taste”*
**Advertised Vs Actual Product**2%
*“totally the opposite of what was mentioned on the page”*
## **Common questions**
- **Is l glutamine profitable to sell on Amazon United Kingdom?**
- The niche generates £345K/yr across 18 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +5.7%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the l glutamine niche?**
- 14 brands and 36 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in l glutamine?**
- Top complaints mined from reviews: Smell, Taste-Overall, Value For Money. The return rate is 0.0%.
- **When does demand for l glutamine peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the l glutamine niche?**
- Listings span £3.80–£23.32; the average listing price is £10.72 (sweet spot $15–$100). The average incumbent carries 1,346 reviews — the moat a new listing must climb.
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