peptalon - the science of better
MAXENDURANCE 400 - product image
MAXENDURANCE 400 - additional product image
MAXENDURANCE 400 - additional product image
MAXENDURANCE 400 - additional product image
MAXENDURANCE 400 - additional product image
MAXENDURANCE 400 - additional product image
1 / 6
MAXENDURANCE 400 - thumbnail 1
MAXENDURANCE 400 - additional thumbnail 2
MAXENDURANCE 400 - additional thumbnail 3
MAXENDURANCE 400 - additional thumbnail 4
MAXENDURANCE 400 - additional thumbnail 5
MAXENDURANCE 400 - additional thumbnail 6
Amino Acid Line

MAXENDURANCE 400

MAXENDURANCE 400 is a targeted injectable amino acid and peptide blend formulated to improve stamina, delay muscular fatigue, and enhance recovery.

Key Ingredients

L-Carnitine, Acetyl D-Glucosamine , L-Carnosine

Fat Metabolism Support

Fat Metabolism Support

Muscle Weakness Support

Muscle Weakness Support

Joint Care

Joint Care

Not sure about the right dosage?

Use our Peptide Dosage Calculator for optimal application

MAXENDURANCE 400 is a targeted injectable amino acid and peptide blend formulated to improve stamina, delay muscular fatigue, and enhance recovery.

Main Information

MAXENDURANCE 400 is engineered for high-demand athletes requiring enhanced muscular endurance, recovery capacity,and oxidative resilience. It combines L-Carnitine (for fatty acid transport and energy), L-Carnosine (a muscle-buffering dipeptide that reduces acidity and fatigue), and Acetyl-D-Glucosamine (a precursor for structural repair and joint integrity). Together, these ingredients support longer output, lower perceived exertion and improved performance under metabolic stress. Especially effective for hybrid athletes, HIIT, endurance sports, or cutting phases with depleted energy.


Scientific Background

MAXENDURANCE 400 was formulated to meet the physiological demands of athletes operating under metabolic stress, where fatigue, oxidative damage, and energy depletion can limit performance and slow recovery. The synergy of its ingredients—L-Carnitine, L-Carnosine, and Acetyl-D-Glucosamine—targets these limitations through three complementary mechanisms: cellular energy transport, intramuscular pH buffering, and connective tissue protection.

  • L-Carnitine plays a critical role in the transport of long-chain fatty acids into mitochondria, where they are converted into energy. This makes it particularly valuable for endurance and fat-adapted athletes. It has also been shown to reduce exercise-induced muscle damage and improve recovery by modulating oxidative stress and lactate levels. A clinical study by Broad et al. (2008) demonstrated that L-Carnitine supplementation improved performance and recovery markers in trained subjects during high-intensity cycling efforts [1].
  • L-Carnosine, a naturally occurring dipeptide found in skeletal muscle, functions as a pH buffer, delaying the onset of muscular acidosis—a major contributor to fatigue during anaerobic or prolonged effort. Research shows that carnosine supplementation can significantly increase time to exhaustion and decrease perceived exertion during high-intensity training. Studies like those by Derave et al. (2007) support its performance-enhancing effects in sprinters and explosive athletes [2].
  • Acetyl-D-Glucosamine (GlcNAc) is a lesser-known but critical structural molecule involved in joint health, cartilage resilience, and cellular repair. It serves as a building block for glycosaminoglycans, which are essential for connective tissue integrity. In the context of intense training or endurance sports—where joint wear and inflammation are common—GlcNAc offers a protective benefit. A study by Iwasaki et al. (2016) indicated that GlcNAc supplementation could attenuate inflammation and support cartilage regeneration in degenerative conditions [3].

What makes MAXENDURANCE 400 unique is its multi-axis approach: it does not simply boost energy, but also extends muscular resilience, protects structural integrity, and reduces post-training inflammation. This makes it especially effective for hybrid athletes, HIIT users, combat sports practitioners, and those training in caloric deficits.

References

Broad EM, Maughan RJ, Galloway SD. Effects of L-carnitine supplementation on muscle metabolism and performance in endurance-trained athletes. Int J Sport Nutr Exerc Metab. 2008;18(6):567–584.
Derave W, et al. Beta-alanine supplementation augments muscle carnosine content and attenuates fatigue during repeated isokinetic contraction bouts in trained sprinters. J Appl Physiol. 2007;103(5):1736–1743. doi:10.1152/japplphysiol.00397.2007
Iwasaki N, et al. Oral GlcNAc suppresses inflammatory cytokine expression and cartilage degradation in experimental osteoarthritis. J Orthop Res. 2016;34(1):120–128. doi:10.1002/jor.22977

Usage Instructions

MAXENDURANCE 400 is an injectable amino acid blend formulated for intramuscular or subcutaneous administration. It is intended to support muscular endurance, oxidative resilience, and post-exercise recovery, particularly in high-performance, hybrid, or endurance-based training protocols.

  • Reconstitution: If supplied as lyophilized powder, mix with bacteriostatic water according to label guidelines. Otherwise, use as ready-to-inject liquid.
  • Administration route:Subcutaneous injection is preferred for systemic fat metabolism support
  • Intramuscular injection (e.g., deltoid or glute) may be used for slower absorption
  • Injection tools: Use a 29–31G insulin syringe (subQ) or 25–27G needle (IM)
  • Injection frequency: 2–3 times per week for general use, up to daily in intensive fat-loss protocols

Dosage Information

MAXENDURANCE 400 is delivered via injectable amino acid blend and should be administered intramuscularly or subcutaneously, depending on practitioner preference and user experience.

General Performance & Recovery Support -For athletes seeking enhanced endurance, faster recovery, and fatigue resistance:

  • Dosage: 1 mL (approx. 400 mg active blend)
  • Timing: Once daily or on training days, 30–60 minutes before exercise
  • Cycle Duration: 6–8 weeks, followed by a 2-week break if used continuously

High-Intensity or Hybrid Athletes (e.g. HIIT, CrossFit, Combat Sports) -For individuals under repeated metabolic stress:

  • Dosage: 1 mL daily, optionally split into 2 x 0.5 mL doses (morning + pre-workout)
  • Timing: 1st dose fasted or before first session; 2nd before evening training or post-workout recovery
  • Cycle Duration: Up to 8 weeks with regular health monitoring

Joint & Structural Recovery Focus (Post-Injury or Heavy Load Periods)-To support tissue repair and joint resilience:

• Dosage: 0.5–1 mL daily

• Timing: Best taken in the evening or with a recovery meal

• Cycle Duration: 4–6 weeks, can be extended when paired with physiotherapy or joint-support protocols




Important Warnings

  • Medical Supervision Recommended: MAXENDURANCE 400 is an injectable compound and should ideally be used under the guidance of a qualified professional.
  • Avoid in Cases of Severe Kidney or Liver Impairment: Since amino acid metabolism involves renal and hepatic pathways, individuals with pre-existing conditions should consult their healthcare provider before use.
  • Injection Site Care: Always rotate injection sites to prevent tissue irritation. Use sterile technique and store vials properly (2–8°C, refrigerated).
  • Not for Use in Children or Pregnant/Breastfeeding Women: Safety in these populations has not been established.
  • Monitor for Hypersensitivity: Though rare, allergic reactions can occur. Discontinue immediately if any swelling, rash, or discomfort develops post-injection.
  • Do Not Exceed Recommended Dosage: Higher doses do not necessarily improve effects and may increase metabolic load or risk of amino acid imbalance.

This product is intended for use in healthy, physically active adults. It is not a substitute for medical treatment, nor a replacement for adequate nutrition or training.

Frequently Asked Questions

What Others Have Selected