Targeted peptides for muscle recovery, repair & performance
Recover faster. Train harder. Stay consistent.
Muscle+ is a muscle recovery supplement built on IPH-AGAA — a patented, NSF Certified for Sport® peptide that signals your body's own repair pathways. No injections, no hormones, no stimulants. Just clean, targeted recovery support in a daily oral capsule.
Muscle+ Peptide Capsules, 60 Count (30 Servings)
Targeted, non-synthetic peptide formula for muscle regeneration and fat reduction.
* Most noticeable results after 90 days
** Applies for first purchase only
ACTIVE INGREDIENT
(PATENTED PEPTIDE)
AMINO ACIDS
IN CHAIN LENGTH
CERTIFIED FOR SPORT®
290+ SUBSTANCES SCREENED
INJECTIONS.
ORAL CAPSULE ONLY.
Recovery is where the gains actually happen
You don’t get stronger during the workout — you get stronger recovering from it. Muscle+ supports that window so you can train hard, bounce back faster, and keep showing up.
Maintains muscle structure and reduces fat mass up to 1.3×, supporting long-term health and performance.
Accelerates every improving muscle metabolism, hydration, and microcirculation — reducing downtime after every workout.
Activates ACTN3 and MSTN genes —
increasing alpha-actinin-3 protein by up to 4.5× and muscle mass by up to 1.1×.
Improves muscle strength, elasticity, and endurance by up to 1.5× over consistent daily use.
Recovery that signals —
not just feeds
Most recovery products deliver bulk inputs — collagen powder, protein shakes — and hope your cells know what to do with them. The active ingredient in Muscle+, IPH-AGAA, works differently. It's a short-chain signalling molecule that binds directly to muscle cell receptors and activates the gene pathways involved in repair and growth.
Think of it as the architect's instructions rather than a lorry of bricks. The cells already know how to build — IPH-AGAA sends the precise signal to start. Published research on this ingredient spans human stem cell cultures, animal injury models, and a peer-reviewed 77-person human study conducted over six months.
The findings below refer to published research on the ingredient IPH-AGAA. They describe research outcomes, not product claims. Individual results may vary.
Tissue-specific. Gene-level. Oral.
Unlike conventional peptide supplements that work systemically across the whole body, IPH-AGAA is matched to the tissue it came from — skeletal muscle — and targets only the gene pathways specific to that tissue.
Three amino acids. One patented peptide.
No proprietary-blend hand-waving. Every capsule pairs the branched-chain amino acids your muscles use to rebuild with the IPH-AGAA peptide complex that does the signalling. That's the whole formula — zero calories, no fillers.
Other ingredients: vegetable capsule (hydroxypropyl methylcellulose). Gluten-, dairy-, and soy-free. Marine-derived.
Made for people who train for real
Muscle+ isn't a pre-workout buzz or a protein substitute. It's recovery support for people whose progress is limited by how fast they bounce back.
From ultramarathons to martial arts
Athletes who have pushed the limits of human performance, for decades. Their common thread: they want what works — and they're willing to interrogate the evidence before they trust a product.
50 marathons in 50 states in 50 consecutive days. 350 miles nonstop. A race across Death Valley. A marathon to the South Pole. TIME's 100 Most Influential People. Victories at Badwater and the 4 Deserts Challenge — on all seven continents.
50 marathons in 50 states in 50 consecutive days. 350 miles nonstop. A race across Death Valley. A marathon to the South Pole. TIME's 100 Most Influential People. Victories at Badwater and the 4 Deserts Challenge — on all seven continents.
Training since age four across more than 20 martial arts styles. His fighting was motion-captured for Mortal Kombat. He trains 5–6 hours a day, seven days a week. Starting strong on Monday is easy — still going hard on Friday demands a different kind of preparation.
Starting strong on Monday is easy. Still going hard on Friday — that takes something more. Muscle+ keeps my recovery honest. Thejumping, flipping, landing, the bag work, the weight training: it all adds up. Joint+ handles my joints, Muscle+ handles everything else."
U.S. National Chess Master at 17. 2025 Super Heavyweight Chessboxing World Champion — winning the title in Serbia. A Detroit native whose career demands peak mental and physical performance simultaneously.
I have so much more energy, and especially on a full night's sleep. I have a noticeable difference in my ability to push through long days. My focus is sharper, my thoughts are clearer — and in chessboxing, where you need both your body and your mind firing, that edge is everything."
Recovery you can carry
anywhere. No needles, no refrigeration, no excuses.
One oral capsule, NSF Certified for Sport® — built for athletes who read the label.
Every claim is earned
Two levels of testing.
Full transparency.
Every batch carries an independent NSF lab certificate and our own comprehensive internal COA. If we make a claim, you can read the paperwork behind it.
Simple by design.
Precise by science.
These are signalling molecules, not substrates. You don't need large volumes — the precision of the signal matters, not the quantity. Consistent daily use is key; the ingredient works gradually as part of your body's own biological rhythms.
What customers are
saying
FAQ
IPH-AGAA is a short-chain bioregulatory peptide — a sequence of 2–5 amino acids — derived from marine protein through a patented extraction process. It is the active ingredient in Muscle+. Unlike synthetic peptides used in clinical settings, IPH-AGAA is naturally sourced, orally delivered, and requires no injection. It is the subject of published peer-reviewed research spanning cell cultures, animal models, and a human study.
Protein powder and collagen are substrates — raw materials that your body then has to process and direct. IPH-AGAA operates at a fundamentally different level: it is a signalling molecule that communicates directly with muscle cell receptors, activating specific gene pathways involved in muscle repair and maintenance. The two approaches are not in competition — they work at completely different biological levels.
No. Muscle+ is an oral capsule taken once daily. IPH-AGAA's short-chain structure (2–5 amino acids) allows it to be absorbed intact through the gut wall via the PepT1 transporter pathway — the same mechanism the body uses for short peptides naturally. No needles, no cold storage, no special handling.
Yes. Muscle+ is NSF Certified for Sport®, meaning it has been independently tested and verified to be free from 290+ substances banned in professional sport. This certification is trusted by athletes in the NFL, MLB, NHL, NBA, and Olympic programmes. It contains no hormones, no stimulants, and no synthetic compounds.
Muscle+ is derived from non-scaly marine fish and is pareve-friendly, making it acceptable for observant Jewish customers. It contains no bovine, porcine, or synthetic inputs, and is gluten-free, dairy-free, and soy-free. For specific dietary certification queries, please contact Pürblack directly.
IPH-AGAA works as part of your body's own biological signalling — it is not a stimulant and does not produce an immediate acute effect. Consistent daily use over several weeks is the intended approach. The published human study on this ingredient ran over six months with structured cycles of use.
Muscle+ is designed to complement, not replace, your existing nutrition and recovery protocol. Many users take it alongside Pürblack shilajit resin in the morning. If you are on prescription medication or have a medical condition, consult your healthcare provider before adding any new supplement.
We offer free shipping on all Muscle+ orders. Orders are processed and dispatched from our US facility. For full details on delivery timeframes and international shipping, visit purblack.com.
Muscle+ Peptide Capsules, 60 Count (30 Servings)
Targeted, non-synthetic peptide formula for muscle regeneration and fat reduction.
* Most noticeable results after 90 days
** Applies for first purchase only
Recover faster. Train more consistently.
Muscle+ contains IPH-AGAA, an independently certified, patent-protected peptide ingredient with a published body of research. NSF Certified for Sport®. No injections. No synthetics. Trusted by athletes who demand transparency from every product they put in their bodies.
NSF Certified for Sport® · Marine-derived · Oral capsule · No injections