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Manufacturer facts, research findings, and certification records have different jobs. We identify which kind supports each claim.

Manufacturer

CoreAge Rx — Strong Suit ↗

Current PDP identifies unflavored creatine and links its shop buttons to the new Strong Suit landing page. Its from-$19/month headline corresponds to the landing page’s $228 annual bundle; the separate one-month offer is $39. Manufacturer claims are not independent clinical evidence.

Checked 2026-09-27

Manufacturer

Thorne — Creatine, 90 servings ↗

5 g per scoop and $44 for the 90-serving unflavored product. Public browser inspection supplemented an incomplete text extraction.

Checked 2026-09-24

Manufacturer

Naked Nutrition — Creatine, 500 g ↗

100 servings, 5 g per serving; $21.99 one-time or $17.59 displayed subscription offer. Testing statements remain manufacturer claims here.

Checked 2026-09-24

Manufacturer

Sports Research — Creatine Monohydrate ↗

Selected 10.58 oz / 60-serving unflavored powder: $17.95 one-time, $15.26 subscription. Informed Sport claim visible; our directory access was blocked.

Checked 2026-09-24

Manufacturer

NOW Sports — Creatine Monohydrate Powder ↗

8 oz regular powder: $15.99 displayed, approximately 45 servings, approximately 5 g serving, 5 g creatine monohydrate, no other ingredients. Informed Sport claim visible; independent current directory and batch match not completed. Browser access blocked; TinyFish and official-page web extraction used.

Checked 2026-09-26

Manufacturer

Myprotein US — Creatine Monohydrate Powder ↗

Selected-item text: 0.5 lb unflavored, 45 servings, $13.99 displayed. Rendered nutrition accordion says 50 servings for that size and 5 g monohydrate per serving. Discrepancy unresolved; no definitive per-serving cost or independent batch assurance claimed.

Checked 2026-09-26

Manufacturer

Myprotein US — Creatine Gummies ↗

Public nutrition description: five gummies, 5 g monohydrate, 18 servings, 90 calories, 20 g carbohydrate and 10 g added sugars per serving. Example of a format-specific label, not a recommendation or independent potency assay.

Checked 2026-09-26

Primary research, abstract reviewed

Creatine and cognitive performance — randomized trial (2023) ↗

Randomized double-blind crossover trial, 123 participants. Small possible effect in Bayesian analysis; neither primary task met the conventional significance threshold. Exploratory tasks did not show benefit; side effects more frequent with creatine. Authors report no competing interests.

Checked 2026-09-26

Primary research, abstract reviewed

Creatine pilot in Alzheimer’s disease (2025) ↗

Single-arm feasibility study in 20 patients over eight weeks. Changes in brain creatine and some cognition measures cannot establish causal efficacy without a control group. Funding and professional relationships disclosed in the publication; no Strong Suit study.

Checked 2026-09-26

Primary research, abstract reviewed

No additive effect of creatine, caffeine, and sodium bicarbonate (2024) ↗

23 young endurance-trained adults. Creatine improved the short sprint result but not the six-minute time trial; tested combinations did not simply add effects. Authors reported no conflicts. Does not establish outcomes in older recreational athletes.

Checked 2026-09-26

Primary research, abstract reviewed

High-dose short-term creatine in professional cyclists (2024) ↗

23 professional under-23 cyclists in a demanding training-camp intervention. No consistent benefit across measured outcomes. No author conflict reported. Narrow, short study; protocol is not reader dosing advice.

Checked 2026-09-26

Clinical conversation reference

NCCIH — Medication and supplement interactions ↗

Tell the surgery and anesthesia team about supplements in advance. General supplement cautions are not evidence that plain creatine causes every listed interaction.

Checked 2026-09-26

Supplement overview

NCCIH — Using dietary supplements wisely ↗

Discuss supplements, medicines, medical conditions and procedure planning with healthcare professionals. Does not supply a creatine-specific stop or restart interval.

Checked 2026-09-26

Kidney laboratory reference

NIDDK — Clinical measurements and eGFR accuracy ↗

Creatinine and cystatin C have non-filtration influences and interpretation limits. Muscle mass and diet can matter; clinicians choose and interpret appropriate assessments. Not grounds to dismiss an abnormal result.

Checked 2026-09-26

Manufacturer

BPN — Creatine Monohydrate, selected 60-serving offer ↗

Selected 60 servings: $34.99 one-time or $26.24 subscription, default 30-day interval; public availability, not completed checkout. Creapure and Light Labs September 2026 widget; underlying report not lot-matched. Manufacturer warnings apply. No publication date supplied.

Checked 2026-09-27

Manufacturer label, visually inspected

BPN — 60-serving Supplement Facts image ↗

One 5 g scoop, 60 servings, 5 g creatine monohydrate as Creapure, no other ingredients. A website image, not a delivered-container inspection. No publication date supplied.

Checked 2026-09-27

Independent certification directory

NSF — BPN Creatine Monohydrate listing ↗

Unflavored powder, 150 g/300 g/500 g, one 5 g scoop, Lot # All in the inspected directory. Certification scope is distinct from clinical benefit and personal medical suitability. No publication date supplied.

Checked 2026-09-27

Seller policy

BPN — Return policy ↗

30-day window from fulfillment; opened supplements eligible for store credit only. No return or support test performed. No publication date supplied.

Checked 2026-09-27

Seller policy

BPN — Subscription terms ↗

Advance changes required; current orders cannot be cancelled after shipping confirmation. Price changes with notice and future subscription cancellation subject to terms. No order or cancellation performed.

Checked 2026-09-27

Primary research, abstract reviewed

Gastrointestinal distress after creatine supplementation in athletes (2008) ↗

59 male soccer players, 28 days, randomized double-blind groups: two 5 g administrations, one 10 g administration, or placebo. Reported diarrhea more frequent in the single administration group. Not a reader regimen, product comparison, or older-adult trial; funding not established from reviewed abstract.

Checked 2026-09-27

Public health guidance

CDC — About heat and your health ↗

Page dated July 20, 2026. Cooling, activity changes, heat symptoms, and medication conversations; no creatine-specific benefit or universal fluid amount.

Checked 2026-09-27

Public health guidance

CDC — Heat and older adults aged 65+ ↗

Page dated June 25, 2024. Heat vulnerability, cooling, care access, and clinician-directed fluid advice. The 65+ scope is not automatically equivalent to every adult over 50.

Checked 2026-09-27

Manufacturer

CoreAge Rx — Strong Suit current purchase plans ↗

Fresh rendered landing page: 5.6 g scoop containing 5 g monohydrate, 30 servings, 5 calories, <1 g carbohydrate, other ingredients none. Plans $39/30, $87/90, $149.94/180, $228/360 servings. $19/month is the annual equivalent, not the one-month price. Optional refill protection and shipping threshold; no checkout completed. Placeholder testimonials excluded.

Checked 2026-09-27

Primary research

Lyoo et al. — Creatine augmentation in major depression (2012) ↗

Published 2012; abstract accessed September 27, 2026. Eight weeks, 52 women with major depression; creatine added to escitalopram versus placebo added to escitalopram. Not monotherapy, not a Strong Suit trial. Full funding/conflict appraisal not completed.

Checked 2026-09-27

Public health guidance

NIMH — Depression ↗

Clinical symptoms, assessment, and established treatment context; does not recommend these reviewed retail products.

Checked 2026-09-27

Primary research

Cooke et al. — Creatine after induced muscle damage (2009) ↗

Published 2009; primary abstract accessed September 27, 2026. Fourteen untrained young men, creatine with carbohydrate versus carbohydrate alone; specific force and creatine-kinase findings. Full-text PMC retrieval failed; no full funding appraisal or Strong Suit equivalence claimed.

Checked 2026-09-27

Public health guidance

CDC NIOSH — Signs and symptoms of rhabdomyolysis ↗

Published January 14, 2025; accessed September 27, 2026. More-severe-than-expected pain, dark urine, and unusual weakness need immediate assessment; symptoms alone cannot diagnose rhabdomyolysis.

Checked 2026-09-27