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L Glutamine

Maybe

An estimated 0.0% of orders come back. But demand is soft, at +5.7% this quarter, so L Glutamine is a Maybe.

Flapen Score
54
54 / 100
Top 25% of 2,035 Health & Personal Care niches · +6 vs the category median of 48
Market size
£345K/yr281K searches / yr
90-day growth
+5.7%search demand this quarter
Competition
63%top-5 click share · 14 brands · 36 sellers

Flapen Score

L Glutamine against its category

The dotted line is the Health & Personal Care average. Past it, L Glutamine is stronger. Inside it, weaker.

54Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The L Glutamine market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for L Glutamine 281K times last year and spent an estimated £345K. The top 5 brands take 72% of clicks. Flapen scores it 54 out of 100, a Maybe.

01 · Demand

An estimated 11.5% of those searches ended in a purchase.

Shoppers searched for this 281K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 11.5% of those searches ended in a purchase. Searches in the last 90 days moved +5.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated £345K a year.

Searches, last 12 months
281K
Growth, 90 days vs prior 90
+5.7%
Conversion, latest week
11.5%
Market size, estimated
£345Ka year
Peak month
July1.2× the quietest month
Top search term
l glutamine78K searches a year

02 · Price

A sale here is worth £10.72.

Listings sell for £10.72 on average, from £3.80 to £23.32. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 1,000 to 1,250 of them. At £10.72 that is £11K to £13K a year per listing.

Average price
£10.72under the $15 to $100 sweet spot
Price range
£3.80–£23.32
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
30K–40K
Units per listing a year
1,000–1,250
Revenue per listing a year
£11K–£13K
Returns
0.0%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

83% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.5% of listings are out of stock. The average listing ranks #11 within Amino Acids. It carries 1,346 reviews at 4.52 stars, so a new listing needs social proof before a better product.

Sponsored listings
83%
Prime listings
100%
Out of stock, average day
0.5%
Average rank
#11in Amino Acids
Average rating
4.52 starsAmazon United Kingdom average 4.36 stars
Average reviews
1,346per listing
Listings tracked
18

04 · Newcomers

1 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 68 months on average, so the names here are established.

Launched, last 12 months
1
Successful launches
1Amazon's first-year sales bar
Average brand age
68 months

Products

Top L Glutamine products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 63% of clicks. Leaders hold, but buyers still shop past them.

£0£35K£69K£104K£138K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

14 falling

Sellers

36

Est. top-5 brand share

72%

Top 20: 100%

Est. top-5 click share

63%

Top 20: 100%

Open market

23%

  • Applied Nutrition37%
  • Bulk17%
  • swiss bioenergetics7%
  • Solgar6%
  • Nutrivo6%
  • ALPHA015%

Demand

L Glutamine search demand

Weekly searches over the year, seasonality beneath. Pick a range.

6K4KHoliday '24Prime Day '25DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.2×

Search terms

Top L Glutamine search terms shoppers use

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

  • l glutamine78K/yr
  • glutamine78K/yr
  • l glutamine powder44K/yr
  • glutamine powder32K/yr
  • l-glutamine24K/yr
  • l-glutamine powder8K/yr
  • l glutamine powder for gut health5K/yr
  • l-glutamine nutritional supplements8K/yr
  • lglutamine3K/yr

Reviews and returns

What reviews say buyers love and hate about L Glutamine

We read the reviews and the return reasons for every product selling here.

22%of positive reviews mention “Quality-Overall”
19%of negative reviews mention “Smell”
<0.1%of orders come back, a rate Amazon rounds to zero
“Chemical smell”
A buyer, on “Smell”19% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

17 topics

NegativePositive

FAQ

Common L Glutamine questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data