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Ingredient glossary

Leucine

What it is

The single amino acid that acts as the "on switch" for building muscle.

What it does

When enough leucine arrives at once, it signals your body to start muscle protein synthesis.

The dose that works

~2.5–3g per sitting — the "leucine threshold" from the research.

Where it lives in the system

Post (~2.7g per scoop, naturally occurring) — every serving clears the threshold.

Good to know

This is why one full scoop beats grazing on half-scoops.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.