Comparison
Creatine Monohydrate vs Urolithin A
Side-by-side of Creatine Monohydrate and Urolithin A. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Creatine Monohydrate
Creatine monohydrate supplement guide: 3-5 g/day raises phosphocreatine stores, lifts anaerobic output 5-15%, supports lean mass and cognition under sleep loss.
Urolithin A
Urolithin A supplement guide: pomegranate-derived metabolite, 500-1000 mg Mitopure dosing, mitophagy and muscle endurance evidence.
Effects at a glance
Creatine Monohydrate
- •Increases anaerobic strength and power output by ~5 to 15% across multiple training studies
- •Adds ~1 to 2 kg of lean body mass over 4 to 12 weeks, partly intracellular water and partly true tissue gain
- •Improves 1-rep max on bench and squat by ~5 to 10% versus placebo in resistance-trained adults
- •Cognitive benefit appears mainly under sleep deprivation or high mental load, less so in well-rested individuals
- •Saturation reached in ~28 days at 3 to 5 g/day, or ~5 to 7 days with a 20 g/day loading phase
- •No evidence of renal harm in healthy adults across long-term studies; caution in pre-existing severe renal disease
Urolithin A
- •Gut-microbiome-derived metabolite of pomegranate and walnut ellagitannins
- •Roughly 40% of adults are 'urolithin producers' from dietary intake; ~60% are non-producers
- •Ryu 2016 (Nature Medicine) reported lifespan extension in C. elegans and muscle benefits in aged rodents
- •Andreux 2019 first-in-human trial (n=60) established safety and mitochondrial gene-expression upregulation
- •Singh 2022 (n=66, 4 months, 1000 mg/day) reported improved muscle endurance in older adults
- •Most human trial portfolio is Amazentis-funded; independent replication is thin
Side-by-side
| Attribute | Creatine Monohydrate | Urolithin A |
|---|---|---|
| Category | supplement | supplement |
| Also known as | creatine | UA, Mitopure, ellagitannin metabolite |
| Half-life (hr) ↗ | 3 | 17 |
| Typical dose (mg) ↗ | 5000 | 500 |
| Dosing frequency | daily | daily, morning with food |
| Routes | oral | oral |
| Onset (hr) | 168 | 2 |
| Peak (hr) | - | 4 |
| Molecular weight | 149.15 | 228.2 |
| Molecular formula | C4H9N3O2 | C13H8O4 |
| Mechanism | Donates a phosphate group to ADP via creatine kinase, regenerating ATP during high-intensity, short-duration efforts. | Induces mitophagy via potentiation of PINK1/Parkin signaling, leading to selective degradation of damaged mitochondria. Secondary anti-inflammatory effects via NF-kB modulation. |
| Legal status | Dietary supplement (most jurisdictions) | OTC dietary supplement (US GRAS 2018; EFSA Novel Food 2021) |
| WADA status | allowed | allowed |
| DEA / Rx | OTC supplement | OTC supplement (not scheduled) |
| Pregnancy | Insufficient data | Insufficient data; not routinely recommended |
| CAS | 57-00-1 | 1143-70-0 |
| PubChem CID | 586 | 5488186 |
| Wikidata | Q408389 | Q27101321 |
Safety profile
Creatine Monohydrate
Common side effects
- water retention
- mild GI upset at loading doses
- weight gain (2 to 4 lb from intracellular water)
Contraindications
- severe renal impairment
Interactions
- caffeine (high-dose acute): mixed data on ergogenic interference; chronic use appears compatible(minor)
- nephrotoxic drugs (NSAIDs, cyclosporine): theoretical additive renal strain in at-risk patients(moderate)
Urolithin A
Common side effects
- mild GI upset (rare)
- soft stools (rare)
Contraindications
- pregnancy and lactation (insufficient data)
- active chemotherapy (consult oncology)
Interactions
- chemotherapy agents: theoretical interaction with mitochondrial-targeting agents; consult oncologist(moderate)
Which Should You Take?
Creatine Monohydrate and Urolithin A score evenly on the criteria we weight (goal breadth, legal accessibility, evidence depth). The conditionals below should drive the decision more than any aggregate score.
- → If your priority is strength or hypertrophy, pick Creatine Monohydrate.
- → If your priority is focus or working memory, pick Creatine Monohydrate.
- → If your priority is healthspan extension, pick Urolithin A.
- → If your priority is muscle hypertrophy, pick Urolithin A.
Edge case: Half-lives differ materially (Creatine Monohydrate ~3 hr vs Urolithin A ~17 hr). Urolithin A reaches steady state faster; Creatine Monohydrate is easier to dial in if tolerability is uncertain.
Default choice: either is defensible. Creatine Monohydrate edges out on goal breadth + legal accessibility; Urolithin A is the right call if your priority sits in the goals listed above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Creatine Monohydrate and Urolithin A?
Creatine Monohydrate and Urolithin A differ in category (supplement vs supplement), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Creatine Monohydrate or Urolithin A?
Creatine Monohydrate half-life is 3 hours; Urolithin A half-life is 17 hours.
Can you stack Creatine Monohydrate with Urolithin A?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
Go deeper