Overview
Hydrochloride salt of creatine; more soluble than monohydrate but not more effective per dose.
- Synthesized
- Creatine HCl
Mechanism of action
Same as monohydrate — replenishes ATP via phosphocreatine.
- · ATP regeneration
Effects on the body
Organ system effects
Same effects as monohydrate.
Evidence-based benefits
Equivalent strength/hypertrophy benefits as monohydrate
Limited evidencePotential side effects
- · Creatine HCl is generally well-tolerated at evidence-based doses
- · Mild GI discomfort (nausea, loose stools, or bloating) possible at higher intakes
- · Headache or transient fatigue reported by a small fraction of users
- · Allergic or hypersensitivity reaction (rash, itching, swelling)
- · Sleep disturbance if taken late in the day
- · Discontinue and seek medical advice if symptoms are severe, persistent, or include difficulty breathing
Drug interactions
Supplement interactions
- Creatine monohydrate alternativeBoth work; monohydrate is cheaper and best studied.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Creatine HCl — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Creatine HCl third party tested NSF
CapsulesPre-measured Creatine HCl capsules — easiest for travel and consistent daily dosing without scoops or scales.Creatine HCl capsules
PowderBulk unflavored Creatine HCl powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Creatine HCl powder unflavored
Best sellersMost-purchased Creatine HCl products on Amazon — a quick way to see what's reviewed widely before you commit.Creatine HCl best sellerScientific evidence8Show studiesHide studies
Creatine HCl vs monohydrate solubility and absorption
Jagim AR, et al.
RCT of creatine HCl vs monohydrate.
Comparable performance effects; HCl better solubility.
PubMed: Creatine HCl — Equivalent strength/hypertrophy benefits as monohydrate
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PubMed: Creatine HCl — randomized controlled trial
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PubMed: Creatine HCl — meta-analysis
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PubMed: Creatine HCl — pharmacokinetics
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PubMed: Creatine HCl — safety adverse events
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PubMed: Creatine HCl — dose response
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Google Scholar: Creatine HCl — clinical evidence
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Cross-database citation index for Creatine HCl as it relates to "clinical evidence".
Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.