06/02/2026
Built for training days that demand more.
Unmatched PeptiSize brings together myHMB®, CreGAAtine®, PeptiStrong®, Vitamin B6, Vitamin B12, and more in a formula designed to support muscle health, strength, recovery, and performance.
For athletes focused on building and maintaining lean muscle, PeptiSize delivers a powerful blend of performance-focused ingredients to help support the work you’re putting in.
The myHMB® mark means you’re getting HMB backed by TSI Group’s patents, protected by our trademark, and manufactured by us for consistent purity and highest quality.
† 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.