l glutamine powder
Worth a lookShows low returns (0.0%), but a concentrated shelf (top 5 take 69% of clicks) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.4%search→purchase rate — share of searches ending in a sale
Avg price
Great£16.11avg listing price — sweet spot $15–$100
Price range
Good£4.27–£45.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,375.67avg incumbent reviews — the moat a new listing must climb
Growth
Good+23.2%90-day search growth — must beat 0% to launch
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay£168K£168K/yr · 84K searches
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
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
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.No pronounced peak months · busiest ÷ quietest = 1.4×
Top l glutamine powder search terms
- l glutamine powder44K/yr
- glutamine powder32K/yr
- l-glutamine powder8K/yr
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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (250g - 50 Servings)
Applied Nutrition£9.664.6★189 rev
Bulk Pure L-Glutamine Powder Unflavoured 500 g Packaging May Vary
Bulk£12.304.5★3,339 rev
Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (500g - 100 Servings)
Applied Nutrition£14.944.6★189 rev
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£10.874.5★295 rev
L-Glutamine Powder 500g Unflavoured Vegan Fermented Amino Acid 100% Pure Resealable and Recyclable Pouch by Alpha01
ALPHA01£10.804.6★192 rev
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£29.4059 rev
Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (500g - 100 Servings)
Applied Nutrition£14.94189 rev
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£10.87295 rev
Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (250g - 50 Servings)
Applied Nutrition£9.66189 rev
L-Glutamine Powder 500g Unflavoured Vegan Fermented Amino Acid 100% Pure Resealable and Recyclable Pouch by Alpha01
ALPHA01£10.80192 rev
Trending
90-day click momentumAncient + Brave True Biome Fibre & Gut Health Powder Prebiotics Postbiotics & L-Glutamine PHGG Soluble Fibre for Digestive Health Microbiome Balance
Ancient + Brave£29.404.7★
UKHealthHouse Pure Glutamine Powder Amino Acids - 100% L-Glutamine Recovery Protein Building Blocks Food Supplement for Muscle Repair Restore Gut (100g)
UKHealthHouse£4.274.2★
Applied Nutrition L Glutamine Powder - Amino Acid Muscle Strength & Recovery Boosts Immune System Unflavoured (250g - 50 Servings)
Applied Nutrition£9.664.6★
Thorne L-Glutamine Powder 18.1 Oz (90 Servings)
THORNE£45.384.6★
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£10.874.5★
What buyers say about l glutamine powder
What buyers praise and complain about, mined from review topics.What buyers love
“Great quality glutamine supplement”
“like the price”
“very slight salty taste”
“Mixes & tastes ok”
“It has definitely helped reduce bloating”
“Bought this so that I could have support after a medical issue”
“Great and easy to take”
“It dissolves well”
“Real-World Nutrition 🌎”
“Great stomach support and repair”
What buyers complain about
“Chemical smell”
“it tastes fishy”
“Does not work”
“Waste of money”
“any glutamine supplement can have negative side effects not sure if its worth continuing to take it or not”
“very slight salty taste”
“Had a really bitter taste”
“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.