D-aspartic acid vs L-arginine
Evidence-based comparison of D-aspartic acid and L-arginine — absorption, dosage, safety, and which is best for your needs.
L-arginine
Nitric oxide production: Increases NO synthesis for vasodilation and blood flow
Full GuideDetailed Comparison
| D-aspartic acid | L-arginine | |
|---|---|---|
| Category | Amino acid | Amino acid |
| Mechanism | Testosterone support: Supports testosterone synthesis or signaling | Nitric oxide production: Increases NO synthesis for vasodilation and blood flow |
Which Should You Choose?
D-aspartic acid may be better if: Testosterone support: Supports testosterone synthesis or signaling
L-arginine may be better if: Nitric oxide production: Increases NO synthesis for vasodilation and blood flow