Citrulline supplements
Citrulline is taken as one dose before training, so what matters is how much one serving gives. We compare each product's serving with what studies use: 4–5.33 g. Products whose serving reaches that come first, then by how close one serving gets (counted only up to the top of the range); commission never changes the order.
Powders (8)
| Product | One serving | One serving vs research dose | To reach the research dose | Label's daily maximum | Proof |
|---|---|---|---|---|---|
| BulkSupplements L-Citrulline Powder · label 25 Jul 2024 | 3 g | Below research dose | 2 servings reach 4 g | 6 g (2 servings) | Label claim only |
| Doctor's Best L-Citrulline Powder · label 24 Jan 2024 | 3 g in 1 scoop (3 g) | Below research dose | 2 servings reach 4 g (more than directed) | 3 g (1 serving) | Label claim only |
| Nutricost L-Citrulline Powder · label 23 Apr 2024 | 3 g in 1 scoop (3 g) | Below research dose | 2 servings reach 4 g (more than directed) | 3 g (1 serving) | Label claim only |
| Kaged Citrulline · label 25 Sep 2023 | 2 g | Below research dose | 2 servings reach 4 g | 4 g (2 servings) | Label claim only |
| Micro Ingredients L-Citrulline Malate 2:1 · label 24 Sep 2021 | 2 g in one serving | Below research dose | 2 servings reach 4 g | 4 g (2 servings) | Label claim only |
| NutraBio L-Citrulline (Fermented) · label 22 Mar 2024 | 2 g | Below research dose | 2 servings reach 4 g | 6 g (3 servings) | Label claim only |
| Nutricost L-Citrulline Malate 2:1 Powder · label 23 May 2024 | 2 g in 1 scoop (3 g) | Below research dose | 2 servings reach 4 g (more than directed) | 2 g (1 serving) | Label claim only |
| NOW L-Citrulline Pure Powder · label 24 Nov 2015 | 1.5 g in one serving | Below research dose | 3 servings reach 4 g (more than directed) | 3 g (2 servings) | Label claim only |
Capsules (6)
| Product | One serving | One serving vs research dose | To reach the research dose | Label's daily maximum | Proof |
|---|---|---|---|---|---|
| BulkSupplements L-Citrulline 3000 mg Capsules · label 20 Jun 2024 | 3 g in 4 capsules | Below research dose | 6 capsules reach 4 g (more than directed) | 3 g (4 capsules) | Label claim only |
| NOW L-Citrulline 750 mg Capsules · label 25 Jul 2024 | 1.5 g in 2 capsules | Below research dose | 6 capsules reach 4 g (more than directed) | 3 g (4 capsules) | Label claim only |
| Nutricost L-Citrulline 1,500 mg Capsules · label 16 Jun 2022 | 1.5 g in 2 capsules | Below research dose | 6 capsules reach 4 g (more than directed) | 1.5 g (2 capsules) | Label claim only |
| Double Wood L-Citrulline 1200 mg Capsules · label 22 Jan 2021 | 1.2 g in 2 capsules | Below research dose | 7 capsules reach 4 g | 4.8 g (8 capsules) | Label claim only |
| Swanson L-Citrulline 850 mg Capsules · label 25 Feb 2019 | 850 mg in 1 capsule | Below research dose | 5 capsules reach 4 g (more than directed) | 1.7 g (2 capsules) | Label claim only |
| Amazing Formulas L-Citrulline 750 mg Capsules · label 25 Sep 2024 | 750 mg in 1 capsule | Below research dose | 6 capsules reach 4 g (more than directed) | 750 mg (1 capsule) | Label claim only |
Tablets (2)
| Product | One serving | One serving vs research dose | To reach the research dose | Label's daily maximum | Proof |
|---|---|---|---|---|---|
| Best Naturals L-Citrulline 2000 mg Tablets · label 24 Jan 2024 | 2 g in 2 tablets | Below research dose | 4 tablets reach 4 g | 4 g (4 tablets) | Label claim only |
| NOW Sports L-Citrulline 1,200 mg Tablets · label 20 Jun 2024 | 1.2 g in 1 tablet | Below research dose | 4 tablets reach 4 g (more than directed) | 2.4 g (2 tablets) | Label claim only |
16 products. The verdict judges one serving, as the label gives it. Read the l-citrulline guide for the studies behind the dose. "Proof" is a published independent lab test, a certifier listing we read on the certifier's own site (usually for listed lots only), or "Label claim only" when we found neither.