---
title: "Arginin Citrullin — €288K/yr Amazon DE Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/de/drogerie-koerperpflege/arginin-citrullin"
last_updated: "2026-08-10T14:28:10.923Z"
locale: en
meta:
description: "Niche score 53/100 · €288K/yr market · 110K searches/yr. A concentrated shelf (top 5 take 78% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · €288K/yr market · 110K searches/yr. A concentrated shelf (top 5 take 78% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Arginin Citrullin — €288K/yr Amazon DE Niche (2026) - Flapen"
---
# **arginin citrullin**
**Worth a look**
Shows low returns (0.1%), but a concentrated shelf (top 5 take 78% of clicks) keeps it on the watch list.
Market size 51Growth 24Conversion 95Competition 19Returns 100Price range 89Avg price 91Brand share 29Review moat 25Quality gap 63
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****€21.57**
avg listing price — sweet spot $15–$100
**Price range**
**Great****€13.76–€29.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Good****€288K**
€288K/yr · 110K searches
**Brand share**
**Okay****88%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****4,742.71**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-1.3%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****78%**
top-5 click share — a locked-up shelf
According to Flapen's Amazon Germany niche tracking, arginin citrullin is a €288K/yr Amazon Germany market (110K searches/yr). The top 5 brands hold 88% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **arginin citrullin market data**
- **Units sold / yr**
- **8K–10K**
- avg 250–500/product
- **Revenue / yr**
- **€173K–€216K**
- units × avg price
- **Conversion rate**
- **12.1%**
- **Avg BSR**
- **#26**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **71%**
- **Out of stock**
- **6.5%**
- **Avg brand age**
- **63 months**
- **Avg seller age**
- **174 days**
## **Competition & brand share**
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**12**
**Top-5 brand share**
**88%**
Top 20: 100%
**Top-5 click share**
**78%**
Top 20: 100%
**Open market**
**9%**
- ProFuel38% - GEN GERMAN ELITE NUTRITION33% - Nature Love8% - Gym Nutrition5% - HAVASU NUTRITION4% - Horbäach3% - Open — no brand owns it (4 brands, 9%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.3% search growth over the last 90 days.
3K2KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/de/drogerie-koerperpflege/arginin-citrullin/trend)
## **Top arginin citrullin search terms**
- **arginin citrullin**36K/yr+5.7%9.3% conv. - **l arginin citrullin**28K/yr+12.8%9.2% conv. - **l arginin citrullin kapseln hochdosiert**14K/yr-14.1%9.7% conv. - **citrullin arginin**9K/yr-8.2%8.2% conv. - **arginin citrullin pulver**8K/yr-19.4%2.8% conv. - **arginin citrullin kapseln**5K/yr-9.3%8.9% conv. - **l-arginin citrullin**5K/yr-25.0%11.1% conv. - **l citrullin l arginin**4K/yr-17.1%6.9% conv. [**All search terms **](https://flapen.com/research/de/drogerie-koerperpflege/arginin-citrullin/search-terms)
## **Top arginin citrullin 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%€29K20%€58K30%€86K40%€115K101001K10K100K 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**L-Arginin + L-Citrullin-Malat Kapseln 360x - optimal hochdosiert mit 6000 mg pro Tag aus L-Arginin (2400 mg) + L-Citrullin-Malat (3600 mg) - laborgeprüft mit Zertifikat - vegan**ProFuel**€15.23**4.6★867 rev](https://www.amazon.de/dp/B0CTTWHN5D) [2**L Arginin + L Citrullin - 320 Kapseln - 1100 mg pro Kapsel - Extra hochdosierte Ultra Caps mit Arginin Base und Citrullin im Verhältnis 1 zu 1 - Hochwertige Aminosäuren Kombination**GEN GERMAN ELITE NUTRITION**€26.02**4.5★1,840 rev](https://www.amazon.de/dp/B07PXQRRSL) [3**GEN GERMAN ELITE NUTRITION L-Arginin + L-Citrullin Ultra Tabs 300 Tabletten**GEN GERMAN ELITE NUTRITION**€18.97**4.3★380 rev](https://www.amazon.de/dp/B0F9P6G8W3) [4**NATURE LOVE L-Arginin Base mit Citrullin - 365 Kapseln - Hochwertiges pflanzliches Arginin in BASE Form mit 99 7+% Reinheit - Hochdosiert vegan in Deutschland produziert**Nature Love**€25.47**4.5★2,272 rev](https://www.amazon.de/dp/B0881SC5ZW) [5**L-Arginin + Citrullin hochdosiert - 365 Kapseln - 6.785 mg Tagesdosis 60+ Tage Vorrat - Vegan & Produziert in Deutschland**Gym Nutrition**€21.28**4.4★498 rev](https://www.amazon.de/dp/B0DNYQS1DV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**L Arginin Citrullin Kapseln Hochdosiert 4800mg | 360 Capsules | Aminosäure Komplex | Arginine Citrulline | Horbaach**Horbäach**€16.63**58 rev9mo ago](https://www.amazon.de/dp/B0FXMK79B3) [**L-Arginin Supplement für Männer | NO (Stickstoffmonoxid) Booster für Training & Ausdauer | L-Arginin L-Citrullin Komplex mit Sauerkirsche die Gesundheit von Männern| Ohne Gentechnik | 60 Kapseln**HAVASU NUTRITION**€14.97**46,769 rev12mo ago](https://www.amazon.de/dp/B01MS461VC) [**GEN GERMAN ELITE NUTRITION L-Arginin + L-Citrullin Ultra Tabs 300 Tabletten**GEN GERMAN ELITE NUTRITION**€18.97**380 rev1y ago](https://www.amazon.de/dp/B0F9P6G8W3) [**L-Arginin + Citrullin hochdosiert - 365 Kapseln - 6.785 mg Tagesdosis 60+ Tage Vorrat - Vegan & Produziert in Deutschland**Gym Nutrition**€21.28**498 rev1y ago](https://www.amazon.de/dp/B0DNYQS1DV) [**L-Arginin + L-Citrullin-Malat Kapseln 720x - optimal hochdosiert mit 6000 mg pro Tag aus L-Arginin (2400 mg) + L-Citrullin-Malat (3600 mg) - laborgeprüft mit Zertifikat - vegan**ProFuel**€29.44**867 rev2y ago](https://www.amazon.de/dp/B0D156Y8GW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**L-Arginin Supplement für Männer | NO (Stickstoffmonoxid) Booster für Training & Ausdauer | L-Arginin L-Citrullin Komplex mit Sauerkirsche die Gesundheit von Männern| Ohne Gentechnik | 60 Kapseln**HAVASU NUTRITION**€14.97**4.2★**▲ 185%**](https://www.amazon.de/dp/B01MS461VC) [**L Arginin Citrullin Kapseln Hochdosiert 4800mg | 360 Capsules | Aminosäure Komplex | Arginine Citrulline | Horbaach**Horbäach**€16.63**3.5★**▲ 76%**](https://www.amazon.de/dp/B0FXMK79B3) [**L-Arginin 360 Kapseln vegan - mit 6000 mg hochwertigem L-Arginin aus Fermentation (davon 6000 mg reines L-Arginin) je Tagesdosis - L-Arginin in Base-Form - laborgeprüft mit Zertifikat - vegan**ProFuel**€15.19**4.5★**▲ 46%**](https://www.amazon.de/dp/B08BLW77XN) [**L-Arginin + L-Citrullin-Malat Kapseln 360x - optimal hochdosiert mit 6000 mg pro Tag aus L-Arginin (2400 mg) + L-Citrullin-Malat (3600 mg) - laborgeprüft mit Zertifikat - vegan**ProFuel**€15.23**4.6★**▲ 24%**](https://www.amazon.de/dp/B0CTTWHN5D) [**L-Arginin + L-Citrullin-Malat Kapseln 720x - optimal hochdosiert mit 6000 mg pro Tag aus L-Arginin (2400 mg) + L-Citrullin-Malat (3600 mg) - laborgeprüft mit Zertifikat - vegan**ProFuel**€29.44**4.6★**▲ 20%**](https://www.amazon.de/dp/B0D156Y8GW)
**~~View all trending →~~**
## **What buyers say about arginin citrullin**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Qualität insgesamt**26%
*“High quality and efficacy”*
**Preis-Leistungs-Verhältnis**11%
*“Preis Super”*
**beworben Vs Tatsächliches Produkt**5%
*“Macht seinen job”*
**Blutdruck**5%
*“Gut verträglich,fördert spürbar die Durchblutung”*
**Effizienz**5%
*“Performance-Verbesserung:”*
**Dosierung**5%
*“Die Dose ist recht groß, was bei 360 Kapseln auch notwendig ist”*
**Linderung von Muskelschmerzen**3%
*“Muskelaufbau”*
**Inhaltsstoffe – insgesamt**3%
*“Solides Citrullin”*
**Herzgesundheit**3%
*“Reguliert auf natürliche Weise den Blutdruck”*
**Löslichkeit**3%
*“Gute Löslichkeit”*
### **What buyers complain about **
**Dosierung**14%
*“Die Dosis: Okay, hier gibts nen kleines Problem”*
**Gesamtgröße**8%
*“Tabletten sind groß”*
**Funktionalität insgesamt**7%
*“keine nennenswerte Wirkung”*
**Geschmack insgesamt**5%
*“Schmeckt widerlich”*
**Geruch**5%
*“Stinkt und Geschmack unerträglich”*
**Preis-Leistungs-Verhältnis**4%
*“Geldverschwendung”*
**Einfaches Kauen/Schlucken**4%
*“nicht wirklich gut zu schlucken”*
**Säureregulator/Linderung von Magenschmerzen**3%
*“Magenprobleme”*
**beworben Vs Tatsächliches Produkt**3%
*“Absolut irreführend”*
**Nebenwirkungen**3%
*“Enttäuschend – keine spürbare Wirkung”*
## **Common questions**
- **Is arginin citrullin profitable to sell on Amazon Germany?**
- The niche generates €288K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -1.3%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the arginin citrullin niche?**
- 10 brands and 12 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 88% of demand.
- **What do buyers complain about in arginin citrullin?**
- Top complaints mined from reviews: Dosierung, Gesamtgröße, Funktionalität insgesamt. The return rate is 0.1%.
- **When does demand for arginin citrullin peak?**
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- **What does it cost to enter the arginin citrullin niche?**
- Listings span €13.76–€29.44; the average listing price is €21.57 (sweet spot $15–$100). The average incumbent carries 4,743 reviews — the moat a new listing must climb.
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