Background: Creatine monohydrate (typically 5-20 g/day) has a well-established safety profile across diverse populations. Creatine hydrochloride (CR-HCl) is a highly soluble creatine formulation that may allow effective supplementation at substantially lower doses (750 mg - 3 g/day); however, controlled human safety data specific to CR-HCl remain limited.
Objective: To evaluate the short-term laboratory safety and tolerability of low-dose CR-HCl supplementation administered for 28 days in healthy adults.