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L Carnitine

Maybe

An estimated 0.1% of orders come back. But demand is soft, at -10.0% this quarter, so L Carnitine is a Maybe.

Flapen Score
58
58 / 100
Top 4% of 25 Everything Else niches · +15 vs the category median of 43
Market size
£315K/yr291K searches / yr
90-day growth
-10.0%search demand this quarter
Competition
60%top-5 click share · 22 brands · 37 sellers

Flapen Score

L Carnitine against its category

The dotted line is the Everything Else average. Past it, L Carnitine is stronger. Inside it, weaker.

58Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The L Carnitine market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for L Carnitine 291K times last year and spent an estimated £315K. The top 5 brands take 61% of clicks. Flapen scores it 58 out of 100, a Maybe.

01 · Demand

An estimated 7.7% of those searches ended in a purchase.

Shoppers searched for this 291K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 7.7% of those searches ended in a purchase. Searches in the last 90 days moved -10.0% against the 90 days before. Searches, conversion and average price together put the market at an estimated £315K a year.

Searches, last 12 months
291K
Growth, 90 days vs prior 90
-10.0%
Conversion, latest week
7.7%
Market size, estimated
£315Ka year
Peak month
September1.7× the quietest month
Top search term
l carnitine167K searches a year

02 · Price

A sale here is worth £14.00.

Listings sell for £14.00 on average, from £6.30 to £24.71. Amazon reports units sold in ranges. This niche sold 20K to 25K a year. The average listing sells 750 to 1,000 of them. At £14.00 that is £11K to £14K a year per listing.

Average price
£14.00under the $15 to $100 sweet spot
Price range
£6.30–£24.71
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
20K–25K
Units per listing a year
750–1,000
Revenue per listing a year
£11K–£14K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

84% of listings pay for placement with sponsored ads. 96% ship with Prime. On an average day, 4.8% of listings are out of stock. The average listing ranks #36 within Everything Else. It carries 742 reviews at 4.36 stars, so a new listing needs social proof before a better product.

Sponsored listings
84%
Prime listings
96%
Out of stock, average day
4.8%
Average rank
#36in Everything Else
Average rating
4.36 starsAmazon United Kingdom average 4.36 stars
Average reviews
742per listing
Listings tracked
25

04 · Newcomers

1 of last year's 5 launches cleared the first-year sales bar.

5 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 54 months on average, so the names here are settling in.

Launched, last 12 months
5
Successful launches
1Amazon's first-year sales bar
Average brand age
54 months

Products

Top L Carnitine 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 23, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 60% of clicks. Leaders hold, but buyers still shop past them.

£0£16K£31K£47K£63K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

Brands

22 rising

Sellers

37

Est. top-5 brand share

61%

Top 20: 98%

Est. top-5 click share

60%

Top 20: 95%

Open market

33%

  • BANDINI17%
  • Nutravita13%
  • N2 Natural Nutrition11%
  • Best Naturals10%
  • ALPHA019%
  • Applied Nutrition6%

Demand

L Carnitine search demand

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

10K6KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Search terms

Top L Carnitine search terms shoppers use

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

  • l carnitine167K/yr
  • l-carnitine62K/yr
  • l carnitine capsules19K/yr
  • carnitine19K/yr
  • l- carnitine8K/yr
  • lcarnitine4K/yr
  • l carnitine l tartrate3K/yr
  • l carnitine tartrate4K/yr
  • cardarine3K/yr
  • l - carnitine3K/yr

Reviews and returns

What reviews say buyers love and hate about L Carnitine

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

15%of positive reviews mention “Quality-Overall”
6%of negative reviews mention “Acid Regulator/Stomach Ache Relief”
0.1%of orders come back
“Bad acid reflux”
A buyer, on “Acid Regulator/Stomach Ache Relief”6% 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.

20 topics

NegativePositive

FAQ

Common L Carnitine 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