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Lysine

Maybe

An estimated 0.0% of orders come back. But the top 5 products take 76% of clicks, so Lysine is a Maybe.

Flapen Score
55
55 / 100
Top 24% of 14,768 Health & Household niches · +6 vs the category median of 49
Market size
$6.9M/yr2.4M searches / yr
90-day growth
-2.8%search demand this quarter
Competition
76%top-5 click share · 10 brands · 560 sellers

Flapen Score

Lysine against its category

The dotted line is the Health & Household average. Past it, Lysine is stronger. Inside it, weaker.

55Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Lysine market on Amazon at a glance

Shoppers on Amazon United States searched for Lysine 2.4M times last year and spent an estimated $6.9M. The top 5 brands take 84% of clicks. Demand peaks in Dec. Flapen scores it 55 out of 100, a Maybe.

01 · Demand

An estimated 18.6% of those searches ended in a purchase.

Shoppers searched for this 2.4M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 18.6% of those searches ended in a purchase. Searches in the last 90 days moved -2.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $6.9M a year.

Searches, last 12 months
2.4M
Growth, 90 days vs prior 90
-2.8%
Conversion, latest week
18.6%
Market size, estimated
$6.9Ma year
Peak month
December1.6× the quietest month
Top search term
lysine920K searches a year

02 · Price

A sale here is worth $15.62.

Listings sell for $15.62 on average, from $6.46 to $39.41. Amazon reports units sold in ranges. This niche sold 400K to 500K a year. The average listing sells 30,000 to 40,000 of them. At $15.62 that is $469K to $625K a year per listing.

Average price
$15.62inside the $15 to $100 sweet spot
Price range
$6.46–$39.41
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
400K–500K
Units per listing a year
30,000–40,000
Revenue per listing a year
$469K–$625K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

87% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #89 within Amino Acids. It carries 10,535 reviews at 4.67 stars, so a new listing needs social proof before a better product.

Sponsored listings
87%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#89in Amino Acids
Average rating
4.67 starsAmazon United States average 4.42 stars
Average reviews
10,535per listing
Listings tracked
15

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 72 months on average, so the names here are established.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
72 months

Products

Top Lysine products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 76% of clicks. A locked shelf that new listings rarely crack.

Brands

10 falling

Sellers

560

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

11%

  • Brand 132%
  • Brand 223%
  • Brand 314%
  • Brand 411%
  • Brand 55%
  • Brand 65%
  • Open — no brand owns it (4 brands, 11%)

Demand

Lysine search demand

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

150K100KSpike '24Holiday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 1.6×

Search terms

Top Lysine search terms shoppers use

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

  • lysine920K/yr
  • l lysine402K/yr
  • l-lysine283K/yr
  • lysine 1000mg capsules279K/yr
  • l lysine 1000mg capsules136K/yr
  • l-lysine 1000mg capsules83K/yr
  • lysine supplement106K/yr
  • llysine27K/yr
  • lysine capsules24K/yr
  • lisina22K/yr

Reviews and returns

What reviews say buyers love and hate about Lysine

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

17%of positive reviews mention “Quality-Overall”
22%of negative reviews mention “Size-Overall”
<0.1%of orders come back, a rate Amazon rounds to zero
“Tablets are rather large”
A buyer, on “Size-Overall”22% 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.

22 topics

NegativePositive

FAQ

Common Lysine questions

Answered from the same tracked data.