How Muscalarpro™ [M3] Compares
| Performance Metrics |  | Typical Muscle-Building Supplement | Typical Longevity Stack |
|---|---|---|---|
| Clinically Studied Urolithin A Dose (1,000 mg/day) | Partial | ||
| Strength Endpoints in Human RCTs (Urolithin A Core) | Partial | Partial | |
| Endurance/Fatigue-Resistance Endpoints in Human RCTs (Urolithin A Core) | Partial | Partial | |
| Mobility-Type Performance Endpoint (6-min walk) in Urolithin A Research | Partial | ||
| Multi-Pathway Cellular Stack (Mitophagy + Autophagy Support) | Partial | ||
| Single Daily Capsule Protocol | |||
| Stimulant-Free Positioning | Varies | Varies |
* Based on publicly available ingredient labels and published clinical literature.
Decode Peak Performance [M3]
Muscle that ages slower
than you do.
A daily longevity stack for adults 40 to 65. Built around the first human-tested dose of Urolithin A — 1,000 mg, the exact amount used in the 16-week trial.
Every molecule has human evidence behind it.
Urolithin A has a 16-week placebo-controlled trial in adults 40 to 65. Spermidine has human cohort data linking dietary intake to muscle preservation. S-allyl cysteine has biomarker trials in cardiovascular health.
Three cleanup systems, one stack.
Mitophagy clears damaged mitochondria. Autophagy recycles worn proteins. S-allyl cysteine adds antioxidant defense. Each pathway works on its own; together they keep muscle cells producing energy.
The exact doses used in the trials.
1,000 mg Urolithin A. 6 mg spermidine. 1 mg S-allyl cysteine. Per daily serving. The 1,000 mg matches the high-dose arm in Singh et al. 2022 — not a fractional amount.
What the data showed at 16 weeks.
In adults 40 to 65, Urolithin A at 1,000 mg daily added up to 12% hamstring strength and 41% muscle endurance vs placebo. CRP, a systemic inflammation marker, dropped roughly 40%.
Every molecule has human evidence behind it.
Urolithin A has a 16-week placebo-controlled trial in adults 40 to 65. Spermidine has human cohort data linking dietary intake to muscle preservation. S-allyl cysteine has biomarker trials in cardiovascular health.
Three cleanup systems, one stack.
Mitophagy clears damaged mitochondria. Autophagy recycles worn proteins. S-allyl cysteine adds antioxidant defense. Each pathway works on its own; together they keep muscle cells producing energy.
The exact doses used in the trials.
1,000 mg Urolithin A. 6 mg spermidine. 1 mg S-allyl cysteine. Per daily serving. The 1,000 mg matches the high-dose arm in Singh et al. 2022 — not a fractional amount.
What the data showed at 16 weeks.
In adults 40 to 65, Urolithin A at 1,000 mg daily added up to 12% hamstring strength and 41% muscle endurance vs placebo. CRP, a systemic inflammation marker, dropped roughly 40%.
Most muscle supplements are pseudoscience with a protein aftertaste. M3 is built for musclespan — the cellular capacity that lets muscle produce energy, recover, and hold output as you age.
These cellular batteries start wearing out in your 30s.
Cellular Energy
Muscle Strength
Peak Endurance
Benefits that build over time
Your cells adapt before your mirror does.
Urolithin A reaches every muscle cell
- Plasma Urolithin A peaks within 6 to 8 hours¹
- The mitochondrial signaling cascade initiates
- Damaged mitochondria get tagged for clearance
Mitophagy switches on
- Daily dosing keeps the cleanup cycle running
- Autophagy reactivates protein recycling in fibers
- Post-training soreness windows start to shrink
Energy production climbs
- Energy machinery (OXPHOS) ramps up
- Acylcarnitines — a stress marker — begin to decline
- Effort at the same intensity feels less costly
Gains move from cells to sensation
- Early strength and endurance changes emerge²
- Recovery between training sessions shortens
- Biomarker shifts start registering in training logs
The 16-week data lands
- +12% hamstring strength in adults 40 to 65²
- +41% skeletal muscle endurance vs placebo²
- -40% CRP, a systemic inflammation marker²
The adaptations compound
- Each cycle of cleanup builds on the previous
- Mitophagy activation stays dose-responsive³
- Year-plus human data still being gathered in active trials
How to Use:
Take 2 capsules daily, with your first meal. Day or night works — consistency matters more than timing.
Day-to-day life can disrupt the balance of your muscle mitochondria, depleting your critical super defendermitochondrial quality control.
Exercise mimetic
M3 is an exercise mimetic at the cell — it triggers mitophagy, the pathway training activates. In adults 40 to 65, Urolithin A added up to 12% hamstring strength and 41% endurance at 16 weeks.
Inside M3
M3 doesn’t build muscle. It builds musclespan — the cellular capacity that keeps muscle strong as you age.
M3 combines three clinically studied molecules — Urolithin A 1,000 mg, Spermidine 6 mg, and S-Allyl Cysteine 1 mg — that act on the three cellular systems behind musclespan: mitochondrial turnover, protein recycling, and the neural maintenance that coordinates both.
Every cell has two cleanup systems that decide how well it ages. Autophagy is general recycling — the cell breaking down and replacing its own damaged proteins. Mitophagy is a specialized subset: the removal of damaged mitochondria, the batteries that power every cell. Both processes slow with age. M3 restarts both, through three complementary molecules.
Why M3 is Superior to NMN
M3 prioritizes mitochondrial quality (mitophagy biology) with human RCT signals in muscle endurance + mitochondrial biomarkers, while NMN primarily boosts blood NAD+ with mixed/limited functional signals and no meaningful body-composition change.
Urolithin A 1000mg
Mitophagy activator with complete human RCT evidence. Hamstring strength +12% at 16 weeks in sedentary adults 40–65, mean BMI 29.5.*
ACTIVATION TIMELINE
Plasma Tmax 2–4 hours. Mitochondrial gene signature changes at 4 weeks. Functional strength outcomes at 16 weeks.*
Spermidine 6mg
Broad autophagy inducer. Pairs with Urolithin A's mitochondrial focus. RCT data emerging; observational cohort data strong.*
ACTIVATION TIMELINE
Absorbed in 1–2 hours. Autophagy induction at 4–6h. Sustained cellular effects reported at 8–12 weeks.*
S‑Allyl Cysteine 1mg
Nrf2 pathway activator. Aged garlic extract RCTs show improved vascular function and reduced oxidative stress markers.*
ACTIVATION TIMELINE
Peak plasma 30–60 minutes. Nrf2 target-gene response within 2–4 hours.*
Urolithin A 1000mg
Mitophagy activator with complete human RCT evidence. Hamstring strength +12% at 16 weeks in sedentary adults 40–65, mean BMI 29.5.*
ACTIVATION TIMELINE
Plasma Tmax 2–4 hours. Mitochondrial gene signature changes at 4 weeks. Functional strength outcomes at 16 weeks.*
Spermidine 6mg
Broad autophagy inducer. Pairs with Urolithin A's mitochondrial focus. RCT data emerging; observational cohort data strong.*
ACTIVATION TIMELINE
Absorbed in 1–2 hours. Autophagy induction at 4–6h. Sustained cellular effects reported at 8–12 weeks.*
S‑Allyl Cysteine 1mg
Nrf2 pathway activator. Aged garlic extract RCTs show improved vascular function and reduced oxidative stress markers.*
ACTIVATION TIMELINE
Peak plasma 30–60 minutes. Nrf2 target-gene response within 2–4 hours.*
CLINICALLY VALIDATED EFFICACY
Results from a 16-week randomized, double-blind, placebo-controlled clinical trial on Urolithin A, the active compound in M3:
Increase in hamstring muscle strength in adults aged 40 to 65
Increase in skeletal muscle endurance, measured as contractions-to-fatigue
Reduction in C-reactive protein, a systemic inflammation marker
Rigorous quality standards
Quality gets proven, not promised. Every batch of M3 is tested by independent labs for purity, potency, and contaminants before it leaves our facility.
FSSAI Verifies
GMP Audited
FDA GRAS Safety
NSF Sport
M3 Clinical Trial
3rd Party Tested
CUSTOMER REVIEWS
4.7 / 5 ★
Based on 3 reviews
100%
Would recommend this product
Priya S.
Yes, I would recommend this product
Age: 40 to 49
Recovery between sessions actually changed
6 days agoI started noticing faster recovery between training sessions after about six weeks. My Garmin resting heart rate on lift days dropped by a few beats. Not a miracle — but measurable. I trained the same, slept the same, ate the same. Only M3 changed.
Arjun M.
Yes, I would recommend this product
Age: 50 to 59
Takes patience, but it lands
2 weeks agoWasn't expecting same-week results — I read the clinical timeline on their science page before buying. By month three, my endurance during long cycling sessions feels more durable. Hard sessions feel less hard at the same heart rate. Wish the capsule were slightly smaller, but that's my only complaint.
R. Sharma
Yes, I would recommend this product
Age: 40 to 49
Skeptic convinced by the JAMA paper, then by the results
3 weeks agoI play masters-level tennis and I was skeptical of yet another longevity supplement. What convinced me to try M3 was the actual JAMA Network Open paper on Urolithin A — not the marketing. Clear improvement in between-match recovery around week eight. Soreness from back-to-back tournament days is noticeably lower.
Meet MuscleCare
Science-backed guidance on mitochondrial health, strength, and longevity for athletes serious about musclespan.
Competitive Athletes + Coaches
Ask us about clinical doses, RCT evidence, performance protocols, and more.
Longevity Optimizers
Ask us anything we know navigating supplement science and training optimization is complex.
Hi, we're MuscleCare. We decode clinical trials on mitochondrial health, muscle performance, and cellular longevity. We answer science and protocol questions from our community.
Can I ask questions even if I haven't purchased M3 yet?
Absolutely that's why we're here 🔬
Better data = better decisions. Fire away!
![Decode Peak Performance [M3] - shop_page_asset_1_b715d5e0-4a81-4ea6-a8b5-e95dc9dcc682](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_1_b715d5e0-4a81-4ea6-a8b5-e95dc9dcc682.png%3Fv%3D1779879096&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_2](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_2.png%3Fv%3D1779267432&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_3](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_3.png%3Fv%3D1779267429&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_4](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_4.png%3Fv%3D1779267430&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_5](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_5.png%3Fv%3D1779267428&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_6](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_6.png%3Fv%3D1779267434&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_7](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_7.png%3Fv%3D1779267437&w=3840&q=75)
![Decode Peak Performance [M3] - shop_page_asset_8](/_next/image?url=https%3A%2F%2Fcdn.shopify.com%2Fs%2Ffiles%2F1%2F0732%2F2556%2F8425%2Ffiles%2Fshop_page_asset_8.png%3Fv%3D1779267428&w=3840&q=75)