---
title: "Arginine Lysine Proline Supplement — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/arginine-lysine-proline-supplement"
last_updated: "2026-08-09T13:23:04.508Z"
locale: en
meta:
description: "Niche score 31/100 · $0/yr market · 5K searches/yr · $19.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 31/100 · $0/yr market · 5K searches/yr · $19.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Arginine Lysine Proline Supplement — $0/yr Amazon US Niche (2026) - Flapen"
---
# **arginine lysine proline supplement**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 0Conversion 0Competition 22Returns 100Price range 82Avg price 87Brand share 30Review moat 41Quality gap 45
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$19.64**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.30–$44.69**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,413.09**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****87%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****74%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$0**
$0/yr · 5K searches
**Growth**
**Bad****-53.6%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, arginine lysine proline supplement is a $0/yr Amazon United States market (5K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 31/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **arginine lysine proline supplement market data**
- **Units sold / yr**
- **100–250**
- avg 0–100/product
- **Revenue / yr**
- **$2K–$5K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#800**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **45%**
- **Out of stock**
- **1.6%**
- **Avg brand age**
- **104 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▲rising
**Sellers**
**43**
**Top-5 brand share**
**87%**
Top 20: 100%
**Top-5 click share**
**74%**
Top 20: 100%
**Open market**
**7%**
- Clean Nutraceuticals25% - NOW Foods25% - Source Naturals14% - BodyHealth13% - Horbäach11% - BIOTICS RESEARCH5% - Open — no brand owns it (2 brands, 7%)
## **Demand & seasonality**
Weekly Amazon search volume, last 98 weeks — -53.6% search growth over the last 90 days.
1K750Spike '24Black Friday '24Spike '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 17.6×
[**Open Trend **](https://flapen.com/research/us/health-household/arginine-lysine-proline-supplement/trend)
## **Top arginine lysine proline supplement search terms**
- **arginine lysine proline supplement**2K/yr-59.8%3.1% conv. - **arginine lysine proline**2K/yr-53.8%1.6% conv. - **argenine lysine proline supplement**897/yr-36.3%2.7% conv. - **proline lysine arginine**197/yr-35.1%0.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/arginine-lysine-proline-supplement/search-terms)
## **Top arginine lysine proline supplement 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.
0%10%$020%$030%$040%$0101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Clean Nutraceuticals Amino Acids Supplement L-Lysine L-Threonine L-Leucine Isoleucine Valine L-Histidine L-Tryptophan L-Methionine L-Arginine L-Cysteine L-Glutamine L-Serine Aspartic Acid**Clean Nutraceuticals**$28.21**4.5★870 rev](https://www.amazon.com/dp/B0D71S86NT) [2**NOW Foods Supplements Tri-Amino with L-Arginine L-Ornithine L-Lysine Supports Protein Metabolism* 120 Capsules**NOW Foods**$14.83**4.7★776 rev](https://www.amazon.com/dp/B0013OSU8Q) [3**BodyHealth PerfectAmino (150 ct) Easy to Swallow Tablets Essential Amino Acids Supplement with BCAAs Vegan Protein for Pre/Post Workout & Muscle Recovery with Lysine Tryptophan Leucine Methionine**BodyHealth**$44.69**4.5★3,615 rev](https://www.amazon.com/dp/B09SZQHYSL) [4**Horbach Amino Acid Complex 3000mg | 250 Caplets**Horbäach**$18.93**4.6★1,771 rev](https://www.amazon.com/dp/B09KZN1BKP) [5**Source Naturals Proline & Lysine 550 mg - 120 Tablets**Source Naturals**$11.48**4.3★361 rev](https://www.amazon.com/dp/B0014GW9XA)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Clean Nutraceuticals Amino Acids Supplement L-Lysine L-Threonine L-Leucine Isoleucine Valine L-Histidine L-Tryptophan L-Methionine L-Arginine L-Cysteine L-Glutamine L-Serine Aspartic Acid**Clean Nutraceuticals**$28.21**870 rev2y ago](https://www.amazon.com/dp/B0D71S86NT) [**Carlyle Tri-Amino L-Arginine L-Ornithine L-Lysine Supplement | 90 Caplets**Carlyle**$9.69**68 rev2y ago](https://www.amazon.com/dp/B0D6NPD69G) [**BodyHealth PerfectAmino (150 ct) Easy to Swallow Tablets Essential Amino Acids Supplement with BCAAs Vegan Protein for Pre/Post Workout & Muscle Recovery with Lysine Tryptophan Leucine Methionine**BodyHealth**$44.69**3,615 rev4y ago](https://www.amazon.com/dp/B09SZQHYSL) [**Horbach Amino Acid Complex 3000mg | 250 Caplets**Horbäach**$18.93**1,771 rev4y ago](https://www.amazon.com/dp/B09KZN1BKP) [**Plant Aminos Organic Essential Amino Acid Supplement (EAAs) & BCAA - 100% Plant-Based Raw Vegan - All 9 Essential Amino Acids with 18 Total Amino Acids (360 Tablets)**Triquetra Health**$29.55**2,243 rev5y ago](https://www.amazon.com/dp/B08NTS8PRV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Carlyle Tri-Amino L-Arginine L-Ornithine L-Lysine Supplement | 90 Caplets**Carlyle**$9.69**4.4★**▲ 160%**](https://www.amazon.com/dp/B0D6NPD69G) [**Source Naturals L-Proline & L-Lysine 550mg - 60 Tablets**Source Naturals**$9.30**4.3★**▲ 147%**](https://www.amazon.com/dp/B00020I6AO) [**BodyHealth PerfectAmino (150 ct) Easy to Swallow Tablets Essential Amino Acids Supplement with BCAAs Vegan Protein for Pre/Post Workout & Muscle Recovery with Lysine Tryptophan Leucine Methionine**BodyHealth**$44.69**4.5★**▲ 39%**](https://www.amazon.com/dp/B09SZQHYSL) [**BIOTICS RESEARCH Amino Acid Quick Sorb Liquid Formula Highly Absorbed Glycine L Alanine L Arginine HCl L Lysine HCl L Proline L Histidine HCl L Serine L Threonine L Valine 2 Fluid Ounces**BIOTICS RESEARCH**$21.74**4.4★**▲ 30%**](https://www.amazon.com/dp/B07FKR3JSP) [**NOW Foods Supplements L-Arginine 1 000 mg Nitric Oxide Precursor* Amino Acid 120 Tablets**NOW Foods**$17.04**4.5★**▲ 14%**](https://www.amazon.com/dp/B0013OVX3U)
**~~View all trending →~~**
## **What buyers say about arginine lysine proline supplement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“good company, good product, have used for 20 years”*
**Value For Money**10%
*“Decent price”*
**Vitamin**7%
*“Great for addition to my daily vitamin stack”*
**Advertised Vs Actual Product**7%
*“Works like it says”*
**Energy Level**6%
*“Increased energy levels”*
**Nutritional Content**6%
*“Great supplement”*
**Muscle Pain Relief**6%
*“This always helps with sore muscles”*
**Blood Pressure**2%
*“Blood flow”*
**Vegan/Organic**2%
*“Vegan and cost effective”*
**Ease Of Use**2%
*“Ease of use”*
### **What buyers complain about **
**Size-Overall**13%
*“Too big”*
**Ease Of Chewing/Swallowing**11%
*“gagging trying to swallow”*
**Taste-Overall**9%
*“The taste is terrible, bitter and metallic”*
**Dosage**9%
*“I just couldnt keep taking them as much as I tried”*
**Smell**6%
*“Foul odor”*
**Side Effects**5%
*“My joints also seem more inflamed after taking this supplement”*
**Value For Money**5%
*“expensive”*
**Acid Regulator/Stomach Ache Relief**4%
*“I also used to have an intermittent problem with acid reflux yet that has disappeared with zero other differences in my lifestyle”*
**Functionality-Overall**4%
*“Didnt work for me”*
**Nutritional Content**3%
*“Proteins are not all equal”*
### **Top return reasons **
**Ease Of Chewing/Swallowing**29%
**Taste-Overall**29%
**Ingredients-Overall**14%
**Size-Overall**14%
**Acid Regulator/Stomach Ache Relief**7%
**Side Effects**7%
## **Common questions**
- **Is arginine lysine proline supplement profitable to sell on Amazon United States?**
- The niche generates $0/yr across 11 tracked products. 90-day search growth is -53.6%. Flapen's verdict: Skip it (31/100).
- **How competitive is the arginine lysine proline supplement niche?**
- 8 brands and 43 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 87% of demand.
- **What do buyers complain about in arginine lysine proline supplement?**
- Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Taste-Overall. The return rate is 0.0%.
- **When does demand for arginine lysine proline supplement peak?**
- Demand peaks in Jan–Feb; the busiest month runs 17.6× the quietest.
- **What does it cost to enter the arginine lysine proline supplement niche?**
- Listings span $9.30–$44.69; the average listing price is $19.64 (sweet spot $15–$100). The average incumbent carries 2,413 reviews — the moat a new listing must climb.
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