Creatine Hydrochloride
Also known as: Cr-HCl, creatine HCl
Three randomised controlled trials in humans examined oral Cr‑HCl. In resistance‑training young adults, Cr‑HCl produced greater gains in strength, skeletal muscle mass and muscle cross‑sectional area versus placebo and performed similarly to creatine monohydrate. In collegiate soccer players, Cr‑HCl improved short‑term power and sprint‑related adaptations versus placebo and showed larger gains than creatine monohydrate for some performance measures. In perimenopausal/menopausal women, daily Cr‑HCl at 1.5 g for 8 weeks increased frontal brain creatine and improved reaction time and some metabolic markers versus placebo. No severe adverse events were reported in these trials.
Last reviewed: 2026-10-14 · 3 indexed studies
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Overview
Creatine hydrochloride (Cr‑HCl) is a soluble creatine salt marketed as an alternative to creatine monohydrate, typically used to support strength, power and muscle mass and occasionally promoted for cognitive effects. Human randomised trials have tested low gram and sub‑gram daily doses over weeks in athletes and middle‑aged women.
Mechanism & Function
Mechanism of Action
As a creatine salt, Cr‑HCl delivers creatine that can be taken up into muscle and brain cells to increase intracellular phosphocreatine and total creatine pools, supporting ATP resynthesis during short, high‑intensity efforts and potentially altering cellular energetics in neural tissue.
Physiological Role
Supports cellular energy buffering via the creatine–phosphocreatine system in muscle and brain tissue.
Primary Pathways
Performance / Health Relevance
By increasing tissue creatine, Cr‑HCl can augment short‑duration, high‑intensity performance (power, sprints) and enhance strength and hypertrophic adaptations when combined with resistance training; it may also raise brain creatine and modestly affect cognition in specific populations.
Evidence Review
No meta-analyses or systematic reviews indexed for this ingredient yet.
Dimensions marked N/A have no indexed evidence of that class. They are shown as unavailable rather than scored.
Practical Use & Dosage
- Minimum Effective Dose
- Around 750–1500 mg/day showed central effects in one trial; ~0.03 g/kg/day (~2–3 g/day) was used in resistance‑training trials.
- Optimal Range
- Not firmly established from these trials; studied ranges include 0.75–3 g/day.
- Upper / Caution Level
- Not established for Cr‑HCl specifically; use common creatine guidance for total creatine intake when combining formulations.
- Timing
- Taken orally; timing relative to training varied and was not a focus of the cited trials.
- Best Format
- Oral powder or capsules.
- Bioavailability
- Cr‑HCl is promoted for greater solubility than monohydrate; clinical outcomes in trials were observed at low gram doses.
- Absorption Considerations
- Studies used daily dosing without additional loading protocols; absorption details beyond trial reports are not provided in the abstracts.
Safety & Interactions
Side Effects
- •No severe adverse events reported in cited trials
- •Gastrointestinal upset has been reported with creatine formulations in other contexts (not specified in these abstracts)
Contraindications
- Pre‑existing kidney disease (caution)
Drug Interactions
- •Concomitant nephrotoxic medications — exercise caution and monitor renal function
Who Should Avoid
- •People with known renal impairment
- •Pregnant or breastfeeding women (no data in these abstracts)
Monitoring
Consider baseline and periodic renal function testing if there are risk factors for kidney disease or if taking other nephrotoxic agents.
Frequently Asked Questions
Auto-generated from indexed evidence — dosage, safety, interactions, and more.
When is Creatine Hydrochloride typically used or indicated?
Creatine Hydrochloride is most commonly used for: Increase strength and muscle mass alongside resistance training, Support short-term high‑intensity exercise performance (sprints, power), Raise brain creatine and target cognition in specific populations. Supports cellular energy buffering via the creatine–phosphocreatine system in muscle and brain tissue.
How does Creatine Hydrochloride work?
As a creatine salt, Cr‑HCl delivers creatine that can be taken up into muscle and brain cells to increase intracellular phosphocreatine and total creatine pools, supporting ATP resynthesis during short, high‑intensity efforts and potentially altering cellular energetics in neural tissue.
What is the recommended dose of Creatine Hydrochloride?
The optimal range is Not firmly established from these trials; studied ranges include 0.75–3 g/day.. with a minimum effective dose of Around 750–1500 mg/day showed central effects in one trial; ~0.03 g/kg/day (~2–3 g/day) was used in resistance‑training trials.. Best taken: Taken orally; timing relative to training varied and was not a focus of the cited trials.. Upper / caution level: Not established for Cr‑HCl specifically; use common creatine guidance for total creatine intake when combining formulations..
What are the side effects of Creatine Hydrochloride?
Reported side effects include: No severe adverse events reported in cited trials; and Gastrointestinal upset has been reported with creatine formulations in other contexts (not specified in these abstracts). Monitoring: Consider baseline and periodic renal function testing if there are risk factors for kidney disease or if taking other nephrotoxic agents.
Does Creatine Hydrochloride interact with medications?
Known or theoretical interactions: Concomitant nephrotoxic medications — exercise caution and monitor renal function. Always check with a clinician before combining with prescription medication.
Who should avoid Creatine Hydrochloride?
Creatine Hydrochloride is generally not recommended for: People with known renal impairment; Pregnant or breastfeeding women (no data in these abstracts); and Pre‑existing kidney disease (caution).
How strong is the evidence for Creatine Hydrochloride?
Evidence level: Moderate (overall score 63/100), based on 3 indexed studies on SuppIndex.
Research & References (3)
Supplementing With Which Form of Creatine (Hydrochloride or Monohydrate) Alongside Resistance Training Can Have More Impacts on Anabolic/Catabolic Hormones, Strength and Body Composition?
Randomised trial in 40 participants (aged 18–25) undergoing 8 weeks resistance training; compared RT+Cr‑HCl (0.03 g/kg), RT+Cr monohydrate (with and without loading), and RT+placebo. Measured strength, body composition, muscle CSA and hormones.
Creatine formulations and repeated sprint training: effects on physical and physiological adaptations in soccer players during the short-term preparation phase.
Randomised trial in 40 collegiate male soccer players over a 4‑week repeated sprint training period comparing creatine monohydrate, creatine ethyl ester, creatine hydrochloride and placebo. Assessed jumps, sprint times, Wingate power and incremental exercise tests.
The Effects of 8-Week Creatine Hydrochloride and Creatine Ethyl Ester Supplementation on Cognition, Clinical Outcomes, and Brain Creatine Levels in Perimenopausal and Menopausal Women (CONCRET-MENOPA): A Randomized Controlled Trial.
Randomised, double‑blind trial in 36 perimenopausal and menopausal women over 8 weeks testing low (750 mg/day), medium (1500 mg/day) Cr‑HCl, Cr‑HCl plus creatine ethyl ester (800 mg/day), and placebo. Assessed cognition, brain creatine, clinical and biochemical markers.
Related Ingredients
Other top-rated ingredients in Ergogenic Compounds.
Creatine Monohydrate
94/100A naturally occurring nitrogenous organic acid that facilitates recycling of adenosine triphosphate (ATP) in muscle and brain tissue via the phosphocreatine shuttle.
Maltodextrin
78/100Short-chain α-1,4 linked glucose polymer that is rapidly hydrolysed by brush-border maltase to glucose; near-equivalent glycaemic response to glucose but lower osmolality at concentration.
Cyclic Dextrin (HBCD)
72/100Produced via cyclic-glucanotransferase action on amylopectin, HBCD forms cluster-like macromolecules ~160 kDa that solubilise at low osmolality (≈4 mOsm/L) and clear the stomach faster than maltodextrin or glucose polymers.
Research Overview
Moderate EvidenceCite this ingredient
One-click citation export in APA, MLA, Chicago, BibTeX, or HTML. The URL below is stable and safe to link.
Stable URL
https://thesuppindex.com/ingredients/creatine-hydrochloride
SuppIndex. (2026). Creatine Hydrochloride: Evidence summary, dosage and clinical studies. Retrieved October 16, 2026, from https://thesuppindex.com/ingredients/creatine-hydrochloride
Based on 3 indexed studies · Evidence level: Moderate.
Goal Ratings
Stack Compatibility
Studied both alone and versus creatine monohydrate; total daily creatine from all sources should be considered.