Is lysine cat treats profitable to sell on Amazon United States?

The niche generates $128K/yr across 15 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -17.7%. Flapen's verdict: Worth a look (54/100).

How competitive is the lysine cat treats niche?

12 brands and 20 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 76% of demand.

What do buyers complain about in lysine cat treats?

Top complaints mined from reviews: Allergies, Value For Money, Smell. The return rate is 0.0%.

When does demand for lysine cat treats peak?

Demand peaks in Apr–Jun; the busiest month runs 3.9× the quietest.

What does it cost to enter the lysine cat treats niche?

Listings span $11.21–$32.60; the average listing price is $17.44 (sweet spot $15–$100). The average incumbent carries 2,977 reviews — the moat a new listing must climb.

lysine cat treats

Worth a look

Shows low returns (0.0%), but soft demand (-17.7% this quarter) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Conversion

Incredible15.4%

search→purchase rate — share of searches ending in a sale

Avg price

Great$17.44

avg listing price — sweet spot $15–$100

Price range

Great$11.21–$32.60

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Brand share

Okay76%

top-5 brand share — brands hold most of the demand

Review moat

Okay2,976.6

avg incumbent reviews — the moat a new listing must climb

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

Market size

Okay$128K

$128K/yr · 48K searches

Growth

Bad-17.7%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United States niche tracking, lysine cat treats is a $128K/yr Amazon United States market (48K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Apr–Jun. Verdict: Worth a look — 54/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

lysine cat treats market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $105K–$140K; units × avg price
Launch success: 80%; 4 of 5 new (360d)
Conversion rate: 15.4%
Avg BSR: #53
Page quality: 0%
Prime: 100%
Sponsored: 87%
Out of stock: 0.0%
Avg brand age: 61 months
Avg seller age: 164 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

18%

Pet Honesty35%
WEALLIN13%
VETRISCIENCE13%
Carmelie8%
Vetoquinol8%
Just Try5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.7% search growth over the last 90 days.

Peak months: Apr, Jun · busiest ÷ quietest = 3.9×

Open Trend

Top lysine cat treats search terms

lysine treats for cats17K/yr -22.4%11.4% conv.
lysine cat treats12K/yr -2.5%10.9% conv.
cat lysine treats6K/yr -10.9%15.0% conv.
lysine chews for cats4K/yr -6.8%10.1% conv.
lysine for cats treats4K/yr -41.3%11.2% conv.
lysine treats3K/yr -21.0%15.7% conv.
l lysine cat treats3K/yr -39.1%15.4% conv.

All search terms

Top lysine cat treats 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Cat Immune Support Lysine Allergy Relief & Immune Health Supplement for Cats with L-Lysine Colostrum Quercetin & Omega-3 Soothes Sneezing Runny Nose & Itchy Skin Chicken (30-Day Supply)

Pet Honesty$15.334.5★2,461 rev

L-Lysine Chews for Cats 500 Chews Immune & Respiratory Support Crunchy Shell with Krill Core with Colostrum & Omega-3s for Sneezing and Runny Nose Chicken Flavor for All Ages & Breeds Cats

WEALLIN$20.824.4★266 rev

VetriScience Lysine Immunity Health Chews 250 mg Lysine Plus Immune Supplement for Cats and Kittens with Allergies Sneezing Runny Nose and Watery Eyes Chicken 120 Count

VETRISCIENCE$18.514.1★11,871 rev

Lysine for Cats 500ct Cat Immune Support Chews L-Lysine Supplement for Cats with Colostrum Omega-3 Soothes Sneezing Runny Nose & Upper Respiratory Support Crunchy & Creamy Chicken Krill Flavor

Carmelie$19.664.3★127 rev

Vetoquinol Enisyl-F Lysine Bites - L-Lysine Chews for Cats & Kittens - Daily Supplement for Immune Respiratory & Eye Health Support - Aids with Sinus Congestion Sneezing & Runny Noses - 6.4oz (180g)

Vetoquinol$32.604.1★3,255 rev

Newest

by launch date

Lysine for Cats L-Lysine for Cats Chews & Lysine Treats 500 Chews Immune Support with L-Lysine Supplement Colostrum Quercetin & Omega-3 Respiratory Sneezing Runny Nose Eye Chicken Flavor

YOTANGO$20.7548 rev

3mo ago

Lysine for Cats 500ct Cat Immune Support Chews L-Lysine Supplement for Cats with Colostrum Omega-3 Soothes Sneezing Runny Nose & Upper Respiratory Support Crunchy & Creamy Chicken Krill Flavor

Carmelie$19.66127 rev

3mo ago

MULTIBITES 330 Bites L-Lysine for Cat Chews with Vitamins and Supplements - Omega 3 Multivitamin Taurine for Cat & and Kittens Treats - Immune Respiratory Eye Health - Chicken Flavor

MULTIBITES$13.7553 rev

6mo ago

L-Lysine Chews for Cats 500 Chews Immune & Respiratory Support Crunchy Shell with Krill Core with Colostrum & Omega-3s for Sneezing and Runny Nose Chicken Flavor for All Ages & Breeds Cats

WEALLIN$20.82266 rev

8mo ago

Just Try 16 oz Lysine Cat Treats - Lactoferrin Lysine for Cats Kittens to Support Immune - Cat Allergy Relief - Sneezing Runny Nose Watery Eyes -Training Treats

Just Try$17.99127 rev

10mo ago

What buyers say about lysine cat treats

What buyers praise and complain about, mined from review topics.

What buyers love

Pet Friendly27%

“My cat approved”

Taste-Overall14%

“These treats have been such a great find”

Quality-Overall8%

“they had great reviews”

Ease Of Chewing/Swallowing7%

“Great chews”

Flavor6%

“flavors my cat just loves”

Value For Money5%

“Great value”

Allergies4%

“Good for allergies”

Ingredients-Overall4%

“the ingredients seem high quality”

Soft Feel3%

“with a softer inside”

Smell3%

“free from odd odors”

What buyers complain about

Allergies12%

“My cat has severe allergies”

Value For Money10%

“Dislike the price”

Smell7%

“Cats hated the smell”

Size-Overall6%

“Too big”

Taste-Overall6%

“not all cats like the taste”

Flavor6%

“my cat just doesn't seem to care for the chicken flavor”

Indigestion5%

“Exploding Diarrhea”

Functionality-Overall4%

“Doesnt work”

Hard Feel3%

“The individual pieces are hard as rock”

Advertised Vs Actual Product3%

“Misleading Labeling — Says Formulated in USA”

Top return reasons

Ease Of Chewing/Swallowing65%

Flavor10%

Advertised Vs Actual Product8%

Escape Proof2%

Product Condition2%

Indigestion2%

Size-Overall2%

Defective Material/Parts2%

Functionality-Overall2%

Hard Feel1%

Common questions

Is lysine cat treats profitable to sell on Amazon United States?: The niche generates $128K/yr across 15 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -17.7%. Flapen's verdict: Worth a look (54/100).
How competitive is the lysine cat treats niche?: 12 brands and 20 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in lysine cat treats?: Top complaints mined from reviews: Allergies, Value For Money, Smell. The return rate is 0.0%.
When does demand for lysine cat treats peak?: Demand peaks in Apr–Jun; the busiest month runs 3.9× the quietest.
What does it cost to enter the lysine cat treats niche?: Listings span $11.21–$32.60; the average listing price is $17.44 (sweet spot $15–$100). The average incumbent carries 2,977 reviews — the moat a new listing must climb.