Creatine hydrochloride (HCl) binds creatine to hydrochloric acid. Companies market it as a more soluble and easier-to-tolerate alternative to creatine monohydrate. Mainstream research does not confirm better absorption or fewer digestive complaints.
It still delivers creatine to muscles to fuel short, intense bursts of exercise. When paired with resistance training, it may help build strength and lean mass. Mix it with water and take it around workouts. Caution is advised for those with kidney disease or taking medications that affect kidney function.