Timeline Mitopure (Urolithin A)vsWonderfeel Younger (Youngr NMN)
Timeline Mitopure (Urolithin A)
Urolithin A (Mitopure), 500 mg/day
Wonderfeel Younger (Youngr NMN)
Nicotinamide mononucleotide (900 mg/day) + trans-resveratrol, ergothioneine, hydroxytyrosol, vitamin D3
Side-by-side
| # | Product | Active ingredient | Starting price | FDA status | Score | Actions |
|---|---|---|---|---|---|---|
| 1 | Timeline Mitopure (Urolithin A) | Urolithin A (Mitopure), 500 mg/day | $95/mo | supplement | Top ·7.3 | See offer → |
| 2 | Wonderfeel Younger (Youngr NMN) | Nicotinamide mononucleotide (900 mg/day) + trans-resveratrol, ergothioneine, hydroxytyrosol, vitamin D3 | Best ·$73/mo | supplement | 6.7 | See offer → |
Side-by-side scoring breakdown
How they work
Urolithin A is a metabolite your gut bacteria make from ellagitannins in pomegranate and berries, though many people produce little of it. Each 500 mg daily dose of Mitopure delivers a standardized, bioavailable form that triggers mitophagy, the cellular process of recycling damaged mitochondria, which helps muscle cells preserve mitochondrial quality and energy output as they age.
Two daily capsules supply 900 mg of nicotinamide mononucleotide (NMN), a direct NAD+ precursor that feeds the coenzyme driving mitochondrial energy and DNA repair. The formula layers in 50 mg trans-resveratrol and ergothioneine as antioxidant and sirtuin-support compounds, plus olive-fruit hydroxytyrosol and vitamin D3 as complementary healthspan ingredients.
Effectiveness
Randomized, double-blind, placebo-controlled trials published in Cell Reports Medicine (2022, middle-aged adults) and JAMA Network Open (2022, older adults) found that 500 mg/day Urolithin A improved muscle strength (around 12% in one trial), exercise endurance, and biomarkers of mitochondrial health versus placebo. The evidence is strongest for muscle and mitochondrial function; it does not demonstrate extended lifespan in humans.
Independent randomized trials of NMN (for example, a 2023 study in healthy middle-aged adults) show that daily NMN supplementation reliably raises blood NAD+ and is generally well tolerated, with some trials reporting improvements in physical performance markers like walking distance. However, Wonderfeel's specific multi-ingredient formula has not been tested in its own published human trial, so efficacy is inferred from ingredient-level evidence rather than the finished product.
Side effects
Across 25+ human studies Mitopure has shown a strong safety profile and holds FDA GRAS status. Infrequent effects can include mild digestive discomfort or nausea. Stop and consult a clinician if you experience an unexpected reaction.
NMN at these doses is generally well tolerated in human studies. Infrequent effects can include mild digestive upset, headache, or flushing. Discontinue and consult a clinician if you experience an unexpected reaction.
Cost & value
As of 2026, roughly $85-$95/month on longer subscriptions, $112.50/month on a basic monthly plan, or $125 for a one-time 30-day softgel bottle from Timeline. Powder and gummy formats are also sold. Not covered by insurance.
As of 2026, $73/month on subscription or $88 for a one-time 30-day bottle from Wonderfeel; 3- and 6-pack bundles reduce per-bottle cost. Not covered by insurance.
Who it's for
Marketed to healthy adults, particularly those focused on muscle and mitochondrial health with age. Not intended for those pregnant or breastfeeding; consult a clinician if you have a medical condition or take medications. This is educational information, not medical advice.
Aimed at healthy adults seeking NAD+ and general healthy-aging support. Not for those who are pregnant or breastfeeding; anyone with a medical condition or on prescription drugs should consult a clinician first. Educational information only, not medical advice.
Bottom line
Wonderfeel Younger (Youngr NMN): Wonderfeel Younger is a polished, doctor-formulated NMN product that bundles several longevity cofactors into one capsule. You pay a premium for the formulation and brand story, not for product-specific clinical proof. On balance, Timeline Mitopure (Urolithin A) edges ahead in our scoring, but the right choice depends on your situation.
Sources behind our Timeline Mitopure (Urolithin A) and Wonderfeel Younger (Youngr NMN) reviews
- Urolithin A improves muscle strength, exercise performance, and biomarkers of mitochondrial health in a randomized trial in middle-aged adults — Cell Reports Medicine (2022)
- Effect of Urolithin A Supplementation on Muscle Endurance and Mitochondrial Health in Older Adults: A Randomized Clinical Trial — JAMA Network Open / PMC (NIH) (2022)
- Urolithin A improves muscle strength and biomarkers of mitochondrial health (full text) — PMC / NIH (2022)
- Mitopure Softgels (product & dosage) — Timeline (2026)
- Best Urolithin A Supplement: Researched and Tested 2026 — Innerbody Research (2026)
- Wonderfeel Youngr NMN 900mg Supplement (product & pricing) — Wonderfeel (2026)
- Chronic nicotinamide mononucleotide supplementation elevates blood NAD+ and is safe in healthy middle-aged adults (randomized trial) — PMC / NIH (2023)
- The 6 Best NMN Supplements of 2026: Expert Approved — Fortune (2026)
- Best NMN Supplement in 2026: Top Contenders — Innerbody Research (2026)
Editorial comparison, not medical advice. Discuss options with a qualified clinician. Individual results vary.