Vegan & Vegetarian Check: What's the Capsule Shell?

A capsule's shell material isn't always obvious from the named active ingredients alone — worth checking directly if a vegan or vegetarian diet matters to your decision.

What to actually check

Confirm directly with the seller whether the capsule shell is gelatin-based (not vegetarian) or a plant-based alternative like HPMC, since this isn't specified on the pages reviewed.

Why this is worth checking separately from the three named amino acids

The three active ingredients — L-Arginine HCl, L-Arginine AAKG, L-Citrulline Malate — are all amino-acid compounds, but the shell material itself is a separate formulation choice worth confirming.