{
  "dataset": "creatine-forms-comparison",
  "title": "Creatine Forms Compared — evidence, superiority vs monohydrate, and cost",
  "sourcePage": "https://verifiedsupplementdata.com/creatine/forms-compared/",
  "license": "CC BY 4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Verified Supplement Data (2026), Creatine Forms Comparison",
  "dateModified": "2026-07-11",
  "methodology": "Creatine monohydrate is the reference standard per the ISSN position stand (PMID 28615996); it is ~99% bioavailable, so \"better absorbed/soluble\" claims for other forms are unsupported (PMID 35268011). Ethyl ester was inferior in an RCT (PMID 19228401); buffered/Kre-Alkalyn showed no advantage (PMID 22971354); magnesium chelate matched standard creatine (PMID 15142029); a 2025 head-to-head RCT found creatine HCl equivalent to monohydrate (PMCID PMC12291177, no PMID assigned). Evidence from PubMed and the International Society of Sports Nutrition.",
  "forms": [
    {
      "name": "Creatine Monohydrate",
      "aka": "CrM / Creapure (branded)",
      "evidence": "500+ studies",
      "verdict": "The reference standard",
      "costVsMono": "Baseline (cheapest)",
      "notes": "The most-studied, most effective form and the one every other is measured against (PMID 28615996). About 99% is taken up by tissue or excreted — near-complete bioavailability, so there is little room for a \"better absorbed\" form to improve on (PMID 35268011). Safe over decades of use. Just buy this."
    },
    {
      "name": "Micronized Monohydrate",
      "aka": "same molecule, finer powder",
      "evidence": "Same as monohydrate",
      "verdict": "Same — it IS monohydrate",
      "costVsMono": "Slightly more",
      "notes": "Ordinary creatine monohydrate milled to a smaller particle size so it mixes more easily and settles less. No bioavailability advantage over regular monohydrate (PMID 35268011) — you are paying a small premium for mixability, not effect."
    },
    {
      "name": "Creatine HCl",
      "aka": "hydrochloride",
      "evidence": "Solubility data, no efficacy win",
      "verdict": "No",
      "costVsMono": "5-10× more",
      "notes": "Far more water-soluble than monohydrate — a real chemistry fact, and genuinely nicer to mix. But solubility is not the same as muscle uptake, and no trial has shown HCl builds more muscle creatine or performance than monohydrate; a 2025 head-to-head RCT at low doses found the two equivalent (PMC12291177). The \"better absorbed\" pitch solves a problem monohydrate does not have. HCl is also sold as causing less bloating, but that mostly reflects its smaller dose — monohydrate bloating is mild and uncommon, and easily avoided by taking 3-5 g/day (skipping the loading phase) or splitting the dose."
    },
    {
      "name": "Buffered (Kre-Alkalyn)",
      "aka": "pH-buffered",
      "evidence": "1 controlled trial",
      "verdict": "No",
      "costVsMono": "3-5× more",
      "notes": "Marketed as more stable in stomach acid so you can use a smaller dose. A controlled trial found it produced no greater gains in muscle creatine, strength, or body composition than monohydrate — at either its low labeled dose or a matched dose (PMID 22971354)."
    },
    {
      "name": "Creatine Ethyl Ester",
      "aka": "CEE",
      "evidence": "RCT — inferior",
      "verdict": "No — actually worse",
      "costVsMono": "3-5× more",
      "notes": "Marketed as better absorbed, but a 7-week RCT found the opposite: CEE produced lower serum creatine and higher serum creatinine (the breakdown/waste product) than monohydrate, consistent with it degrading before it helps (PMID 19228401). The one form where the \"better absorbed\" story is actually reversed by the data."
    },
    {
      "name": "Creatine Nitrate",
      "aka": "creatine + nitrate",
      "evidence": "One small study",
      "verdict": "No",
      "costVsMono": "3-5× more",
      "notes": "More soluble, and a small (n=10) crossover of a nitrate+creatinine blend edged out monohydrate on short-term creatine markers — but it was tiny, unreplicated, measured a biomarker not performance, and showed a ~15% drop in eGFR (a kidney-filtration marker) at day 5, with recovery not measured in the trial (PMID 31763026). Not established as superior."
    },
    {
      "name": "Magnesium Creatine Chelate",
      "aka": "MgCC",
      "evidence": "1-2 studies",
      "verdict": "No",
      "costVsMono": "3-5× more",
      "notes": "Creatine bound to magnesium. It beats placebo (as plain creatine does), but head-to-head it performed similarly to standard creatine — no advantage at an equal creatine dose (PMID 15142029)."
    },
    {
      "name": "Liquid Creatine",
      "aka": "pre-dissolved",
      "evidence": "Stability data — degrades",
      "verdict": "No",
      "costVsMono": "Varies",
      "notes": "Creatine is unstable once dissolved in water — it slowly converts to inert creatinine, and a study of an effervescent creatine solution found major degradation over weeks (PMID 12916907). A pre-mixed liquid can be partly spent before you drink it. Mix powder fresh instead."
    }
  ],
  "citations": [
    "PMID:28615996",
    "PMID:35268011",
    "PMID:19228401",
    "PMID:22971354",
    "PMID:15142029",
    "PMID:31763026",
    "PMID:12916907",
    "PMC:PMC12291177"
  ]
}