arginine lysine proline supplement
Skip itA small market ($0/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$19.64avg listing price — sweet spot $15–$100
Price range
Great$9.30–$44.69cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay2,413.09avg incumbent reviews — the moat a new listing must climb
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Competition
Bad74%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
Bad0.0%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
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.Peak months: Jan, Feb · busiest ÷ quietest = 17.6×
Top arginine lysine proline supplement search terms
- arginine lysine proline supplement2K/yr
- arginine lysine proline2K/yr
- argenine lysine proline supplement897/yr
- proline lysine arginine197/yr
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.
All 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$28.214.5★870 rev
NOW Foods Supplements Tri-Amino with L-Arginine L-Ornithine L-Lysine Supports Protein Metabolism* 120 Capsules
NOW Foods$14.834.7★776 rev
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$44.694.5★3,615 rev
Horbach Amino Acid Complex 3000mg | 250 Caplets
Horbäach$18.934.6★1,771 rev
Source Naturals Proline & Lysine 550 mg - 120 Tablets
Source Naturals$11.484.3★361 rev
Newest
by launch dateClean 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$28.21870 rev
Carlyle Tri-Amino L-Arginine L-Ornithine L-Lysine Supplement | 90 Caplets
Carlyle$9.6968 rev
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$44.693,615 rev
Horbach Amino Acid Complex 3000mg | 250 Caplets
Horbäach$18.931,771 rev
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$29.552,243 rev
Trending
90-day click momentumCarlyle Tri-Amino L-Arginine L-Ornithine L-Lysine Supplement | 90 Caplets
Carlyle$9.694.4★
Source Naturals L-Proline & L-Lysine 550mg - 60 Tablets
Source Naturals$9.304.3★
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$44.694.5★
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$21.744.4★
NOW Foods Supplements L-Arginine 1 000 mg Nitric Oxide Precursor* Amino Acid 120 Tablets
NOW Foods$17.044.5★
What buyers say about arginine lysine proline supplement
What buyers praise and complain about, mined from review topics.What buyers love
“good company, good product, have used for 20 years”
“Decent price”
“Great for addition to my daily vitamin stack”
“Works like it says”
“Increased energy levels”
“Great supplement”
“This always helps with sore muscles”
“Blood flow”
“Vegan and cost effective”
“Ease of use”
What buyers complain about
“Too big”
“gagging trying to swallow”
“The taste is terrible, bitter and metallic”
“I just couldnt keep taking them as much as I tried”
“Foul odor”
“My joints also seem more inflamed after taking this supplement”
“expensive”
“I also used to have an intermittent problem with acid reflux yet that has disappeared with zero other differences in my lifestyle”
“Didnt work for me”
“Proteins are not all equal”
Top return reasons
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.