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Lysine

Fail

Prices span $5.19–$14.12, mostly outside the sweet spot, so Lysine is a Fail.

Flapen Score
43
43 / 100
Ranks 1,437 of 2,035 Health & Personal Care niches · −5 vs the category median of 48
Market size
£458K/yr283K searches / yr
90-day growth
-12.1%search demand this quarter
Competition
90%top-5 click share · 8 brands · 28 sellers

Flapen Score

Lysine against its category

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

43Fail
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 Kingdom searched for Lysine 283K times last year and spent an estimated £458K. The top 5 brands take 90% of clicks. Flapen scores it 43 out of 100, a Fail.

01 · Demand

19.5% of searches ended in a purchase last week.

Shoppers searched for this 283K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 19.5% of those searches ended in a purchase. Searches in the last 90 days moved -12.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated £458K a year.

Searches, last 12 months
283K
Growth, 90 days vs prior 90
-12.1%
Conversion, latest week
19.5%
Market size, estimated
£458Ka year
Peak month
February1.5× the quietest month
Top search term
lysine85K searches a year

02 · Price

A sale here is worth £8.28.

Listings sell for £8.28 on average, from £5.19 to £14.12. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 6,000 to 8,000 of them. At £8.28 that is £50K to £66K a year per listing.

Average price
£8.28under the $15 to $100 sweet spot
Price range
£5.19–£14.12
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
50K–60K
Units per listing a year
6,000–8,000
Revenue per listing a year
£50K–£66K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

75% 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 #5 within Amino Acids. It carries 2,317 reviews at 4.48 stars, so a new listing needs social proof before a better product.

Sponsored listings
75%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#5in Amino Acids
Average rating
4.48 starsAmazon United Kingdom average 4.36 stars
Average reviews
2,317per listing
Listings tracked
8

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 61 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
61 months

Products

Top Lysine products & what they sell for

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

Competition

Competition: brands, sellers & click share

The top 5 products take 90% of clicks. A locked shelf that new listings rarely crack.

£0£69K£137K£206K£275K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

8 falling

Sellers

28

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

6%

  • Natures Aid41%
  • NEW LEAF PRODUCTS28%
  • Solgar10%
  • Best Naturals7%
  • Carlyle4%
  • Horbäach4%
  • Open — no brand owns it (2 brands, 6%)

Demand

Lysine search demand

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

13K8KSpike '24Holiday '24Spike '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Search terms

Top Lysine search terms shoppers use

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

  • lysine85K/yr
  • lysine tablets51K/yr
  • l lysine38K/yr
  • l-lysine32K/yr
  • cold sore tablets12K/yr
  • l lysine capsules 2000mg14K/yr
  • l lysine capsules 1000mg10K/yr
  • lysine for cold sores10K/yr
  • l-lysine 1000mg tablets7K/yr
  • l-lysine nutritional supplements6K/yr

Reviews and returns

What reviews say buyers love and hate about Lysine

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Size-Overall31%−0.14

Quite a large tablet

Tablets too big

Too big

Ease Of Chewing/Swallowing12%−0.08

Can't swallow like putting massive bricks down Ur throat

Even in two they are impossible for me to swallow

Capsule are quite big to swallow

Dosage5%−0.04

would of been better if the dosage were split into 3 pills so the pills aren't so huge impossible to swallow

despite high dosing

Allergies4%+0.14

when I woke up with what promised to be a HUGE cold sore

Itchy skin

I woke up yesterday to the familiar feeling of a tingling lip and looked in the mirror to see a big, swollen blistery mess

Smell3%−0.03

Horrible smell

didn't smell too safe so I threw the thing away

Love

Cold Relief31%+2.71

Helps combat Coldsores

Really help prevent cold sores

Extremely effective against cold sores

Quality-Overall11%+0.30

Excellent product

The quality feels very good

Great item from a reputable brand

Value For Money8%

Competitive price

Decent price

Great value for money

Ease Of Chewing/Swallowing8%−0.08

didn't cause any issues in swallowing

Definitely noticed that they work quite large to swallow

Easy to swallow

Advertised Vs Actual Product5%+0.29

As described

Product has met my expectations

Met Expectations

FAQ

Common Lysine questions

Answered from the same tracked data.