Short answer: stress-related nervous-system activity can contribute to vascular tension — L-Theanine, an amino acid studied for supporting calm, addresses this angle alongside the formula's nitric-oxide-focused ingredients.
Why nervous-system state connects to blood vessels
The nervous system and vascular tone are physiologically linked — sustained stress-related activity can contribute to tension in blood vessels, a genuine, if often overlooked, contributor to overall vascular health.
What L-Theanine specifically brings to this formula
L-Theanine supports a relaxed nervous system, easing stress-related vascular tension — a mechanism distinct from the nitric-oxide pathway that Beet Root, L-Citrulline, and L-Arginine target directly.
Why this is a supportive, not primary, mechanism
L-Theanine's role here is complementary — supporting overall vascular calm rather than being the formula's headline active, alongside the more directly circulation-focused ingredients.
See L-Theanine in Cardio C2's formula
Named plainly, alongside seven other ingredients.
See the Ingredients