---
title: "Reviews — l arginine l citrulline supplement"
canonical_url: "https://flapen.com/research/us/health-household/l-arginine-l-citrulline-supplement/reviews"
last_updated: "2026-08-12T17:11:16.397Z"
locale: en
meta:
  description: "Amazon product research for l arginine l citrulline supplement: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:description": "Amazon product research for l arginine l citrulline supplement: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:title": "Reviews — l arginine l citrulline supplement"
---

# **L Arginine L Citrulline Supplement**

**Worth a look**

Shows low returns (0.0%), but soft demand (-14.2% this quarter) keeps it on the watch list.

Market size 62Growth 18Conversion 85Competition 33Returns 100Price range 81Avg price 90Brand share 49Review moat 23Quality gap 47

**Returns**

**Incredible****0.0%**

return rate — above 5% kills the launch gate

**Avg price**

**Great****$21.03**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****9.6%**

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

**Price range**

**Great****$9.83–$38.69**

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

**Market size**

**Good****$544K**

$544K/yr · 270K searches

**Brand share**

**Okay****76%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****65%**

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

**Review moat**

**Bad****7,819.39**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-14.2%**

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

## Reviews