---
title: "Liquid Lysine — $4K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/liquid-lysine"
last_updated: "2026-08-12T16:27:11.729Z"
locale: en
meta:
description: "Amazon product research for liquid lysine: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for liquid lysine: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Liquid Lysine — $4K/mo Amazon US Product Research (2026)"
---
# **Liquid Lysine**
**Skip it**
A small market ($45K/yr) — this niche doesn't clear our bar today.
Market size 11Growth 22Conversion 77Competition 37Returns 99Price range 56Avg price 85Brand share 70Review moat 71Quality gap 32
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.83**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****7.5%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****668.07**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****63%**
top-5 brand share — brands hold most of the demand
**Price range**
**Good****$8.46–$23.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-5.8%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$45K**
$45K/yr · 32K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
## **Is liquid lysine profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, liquid lysine is a $45K/yr Amazon United States market (32K searches/yr). The top 5 brands hold 63% of demand. Verdict: Skip it — 49/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **liquid lysine market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$47K–$56K**
- units × avg price
- **Conversion rate**
- **7.5%**
- **Avg BSR**
- **#139**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **5.8%**
- **Avg brand age**
- **60 months**
- **Avg seller age**
- **176 days**
## **Competition: brands, sellers & click share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**35**
**Top-5 brand share**
**63%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 100%
**Open market**
**30%**
- HOLLEGEND25% - GZ HAOYUAN12% - Quantum10% - NATISLAND8% - HevChay8% - Well&Whole8%
## **liquid lysine demand & seasonality**
Weekly Amazon search volume, last 16 weeks — -5.8% search growth over the last 90 days.
700500Apr '26Apr '26May '26May '26May '26Jun '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/liquid-lysine/trend)
## **Top liquid lysine search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **liquid lysine**9K/yr-8.4%7.3% conv. - **lysine liquid**7K/yr+1.3%7.8% conv. - **l lysine liquid**5K/yr-6.0%5.3% conv. - **lysine drops**5K/yr-11.7%8.6% conv. - **liposomal lysine**4K/yr-12.1%6.3% conv. - **l-lysine liquid**3K/yr+5.1%3.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/liquid-lysine/search-terms)
## **Top liquid lysine products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$4K20%$9K30%$13K40%$18K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Liposomal L-lysine 1000MG Liquid Drops Lysine Supplement for Women & Kids with Vitamin C B6 D3 B12 & Zinc Gluconate Skin & Lip Health Immune & Collagen Production Support Lemon Flavor 2 fl oz**HOLLEGEND**$22.08**4.5★182 rev](https://www.amazon.com/dp/B0DQTZD9TZ) [2**Liposomal L-lysine 1000MG Liquid Drops 13-in-1 Lysine Monolaurin Supplements Olive Leaf Extract with Vitamin C B6 D3 B12 & Zinc for Collagen Lip skin & Immune Support for Kids & Adults 2oz**GZ HAOYUAN**$17.66**4.5★42 rev](https://www.amazon.com/dp/B0G2XZGWT9) [3**Quantum Health SuperLysine+ Immune Supplement L-Lysine Liquid Extract 2oz**Quantum**$17.91**4.5★732 rev](https://www.amazon.com/dp/B001CMT8FS) [4**Liposomal L-lysine Monolaurin Liquid Drops Lysine 1000MG Supplement for Adults & Kids Echinacea & Elderberry with Vitamin C & D3 Zinc for Lip & Skin Health Collagen & Immune Support 2 Fl Oz**NATISLAND**$19.75**4.7★54 rev](https://www.amazon.com/dp/B0G4R52DJ7) [5**Liposomal Lysine 1000MG Liquid Drops 16-in-1 L Lysine Supplement for Kids and Adults Echinacea & Elderberry with Vitamin C B6 D3 B12 & Zinc for Collagen Lip skin & Immune Support 1 Pack**HevChay**$19.19**4.5★71 rev](https://www.amazon.com/dp/B0FSSM1SZF)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Liposomal L-Lysine 1000mg Liquid Drops 7-in-1 Lysine Supplement for Adults with Vitamin C/B6/D3/B12 & Zinc Gluconate Immune Support Collagen Synthesis & Skin Lip Health Lemon Flavor 2 Fl Oz**Nubetong**$17.79**18 rev5mo ago](https://www.amazon.com/dp/B0GK1KP6QQ) [**Liposomal L-lysine 1000MG Liquid Drops 13-in-1 Lysine Monolaurin Supplements Olive Leaf Extract with Vitamin C B6 D3 B12 & Zinc for Collagen Lip skin & Immune Support for Kids & Adults 2oz**GZ HAOYUAN**$17.66**42 rev7mo ago](https://www.amazon.com/dp/B0G2XZGWT9) [**NaSeny Liposomal L-Lysine 1000MG Liquid Drops for Kids & Adults Lysine Supplement with Calcium GABA Vitamin D3 K K2 Immune & Collagen Support Skin & Lips Health - 2 FL OZ**NaSeny**$19.89**18 rev7mo ago](https://www.amazon.com/dp/B0G62NYZVF) [**Liposomal L-lysine Monolaurin Liquid Drops Lysine 1000MG Supplement for Adults & Kids Echinacea & Elderberry with Vitamin C & D3 Zinc for Lip & Skin Health Collagen & Immune Support 2 Fl Oz**NATISLAND**$19.75**54 rev7mo ago](https://www.amazon.com/dp/B0G4R52DJ7) [**Liposomal Lysine 1000MG Liquid Drops 16-in-1 L Lysine Supplement for Kids and Adults Echinacea & Elderberry with Vitamin C B6 D3 B12 & Zinc for Collagen Lip skin & Immune Support 1 Pack**HevChay**$19.19**71 rev9mo ago](https://www.amazon.com/dp/B0FSSM1SZF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Liposomal L-lysine Monolaurin Liquid Drops Lysine 1000MG Supplement for Adults & Kids Echinacea & Elderberry with Vitamin C & D3 Zinc for Lip & Skin Health Collagen & Immune Support 2 Fl Oz**NATISLAND**$19.75**4.7★**▲ 127%**](https://www.amazon.com/dp/B0G4R52DJ7) [**Liposomal L-Lysine 1000mg Liquid Drops 7-in-1 Lysine Supplement for Adults with Vitamin C/B6/D3/B12 & Zinc Gluconate Immune Support Collagen Synthesis & Skin Lip Health Lemon Flavor 2 Fl Oz**Nubetong**$17.79**4.4★**▲ 104%**](https://www.amazon.com/dp/B0GK1KP6QQ) [**Liposomal L-lysine 1000MG Liquid Drops 13-in-1 Lysine Monolaurin Supplements Olive Leaf Extract with Vitamin C B6 D3 B12 & Zinc for Collagen Lip skin & Immune Support for Kids & Adults 2oz**GZ HAOYUAN**$17.66**4.5★**▲ 84%**](https://www.amazon.com/dp/B0G2XZGWT9) [**NaSeny Liposomal L-Lysine 1000MG Liquid Drops for Kids & Adults Lysine Supplement with Calcium GABA Vitamin D3 K K2 Immune & Collagen Support Skin & Lips Health - 2 FL OZ**NaSeny**$19.89**4.9★**▲ 53%**](https://www.amazon.com/dp/B0G62NYZVF) [**L-Lysine Liquid Drops Liquid Lysine 1000mg Supplement Essential Amino Acid Supplement for Lips & Oral Health & Collagen Formation Support Lysine Drops with Vitamin E & Zinc for Adults 4 Fl oz**NaSeny**$23.21**4.4★**▲ 24%**](https://www.amazon.com/dp/B0FQ5DW7NV)
**~~View all trending →~~**
## **What reviews say buyers love and hate about liquid lysine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**15%
*“Good tasting”*
**Quality-Overall**10%
*“Good quality and easy to take”*
**Pet Friendly**6%
*“cats love it”*
**Flavor**6%
*“It has a natural flavor”*
**Value For Money**5%
*“Good value for price”*
**Ease Of Use**4%
*“just sheer ease”*
**Soothing/Teething**4%
*“It seems to help with the sniffles”*
**Immunity Booster**3%
*“supportive supplement for immune health”*
**Vitamin**3%
*“I like that it includes vitamins”*
**Ingredients-Overall**3%
*“is made with fresh ingredients”*
### **What buyers complain about **
**Taste-Overall**10%
*“Doesnt taste amazing”*
**Functionality-Overall**10%
*“Does not work”*
**Allergies**6%
*“so when I began to have allergic reactions to L-carnitine”*
**Smell**5%
*“Its supposed to be chicken flavored however I get a strong smell of fish”*
**Indigestion**3%
*“This product gave my cat diarrhea”*
**Dosage**3%
*“However, if you are buying this specifically for kids, be aware that the 1,000 mg of Lysine and 100 mg of GABA are significant doses”*
**Flavor**3%
*“she doesn't like the flavor”*
**Value For Money**2%
*“The price seems about average for this supplement”*
**Texture/Consistency-Overall**2%
*“honestly the texture is just not something my cats are regularly fond of”*
**Moist/Dry**2%
*“his eyes are completely dry”*
### **Top return reasons **
**Functionality-Overall**22%
**Advertised Vs Actual Product**14%
**Leak-Proof**13%
**Flavor**11%
**Indigestion**6%
**Defective Material/Parts**5%
**Value For Money**4%
**Smell**4%
**Ingredients-Overall**3%
**Certifications**3%
## **Common liquid lysine questions**
- **Is liquid lysine profitable to sell on Amazon United States?**
- The niche generates $45K/yr across 14 tracked products. 5 of 8 products launched in the last 360 days are still selling. 90-day search growth is -5.8%. Flapen's verdict: Skip it (49/100).
- **How competitive is the liquid lysine niche?**
- 13 brands and 35 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 63% of demand.
- **What do buyers complain about in liquid lysine?**
- Top complaints mined from reviews: Taste-Overall, Functionality-Overall, Allergies. The return rate is 0.1%.
- **What does it cost to enter the liquid lysine niche?**
- Listings span $8.46–$23.21; the average listing price is $18.83 (sweet spot $15–$100). The average incumbent carries 668 reviews — the moat a new listing must climb.
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