Humanin peptide bodybuilding is a small molecule peptide encoded by mitochondrial genes, initially attracting attention for its significant role in neuroprotection and anti-aging. In recent years, its potential for application in the fields of fitness and sports science has gradually been discovered, becoming a focus of attention for fitness enthusiasts and athletes. Antioxidant and anti-inflammatory properties can alleviate oxidative stress and inflammatory reactions caused by exercise, protect muscles and other tissues from damage, reduce the risk of overtraining, promote faster recovery of the body, and enable fitness enthusiasts to enter the next training session in a better state. However, the current application in the fitness field is still in the research stage, and its long-term effects and safety still need more clinical data verification.

Has demonstrated unique advantages in muscle growth and repair. Fitness training, especially high-intensity strength training, can lead to muscle micro injuries, which can reduce muscle cell death caused by training and accelerate the repair and regeneration of damaged muscle fibers by regulating apoptosis related signaling pathways. At the same time, it may also promote the activation and proliferation of muscle stem cells (satellite cells), providing more "raw materials" for muscle growth, helping fitness enthusiasts break through the bottleneck of muscle growth, and achieve an increase in muscle volume and strength.
In terms of improving athletic performance, it helps to improve energy metabolism. It can optimize mitochondrial function, enhance cell utilization efficiency of oxygen, enable muscles to produce energy more efficiently during exercise, and delay the occurrence of fatigue. For fitness programs that require sustained high-intensity output, such as functional training, loop training, etc., this can significantly improve the duration and quality of training, helping fitness enthusiasts complete more sets and higher difficulty movements.
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Humanin COA
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| Certificate of Analysis | ||
| Compound name | Humanin | |
| Grade | Pharmaceutical grade | |
| CAS No. | 330936-69-1 | |
| Quantity |
50.0g
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| Packaging standard | 10g/bag | |
| Manufacturer | Shaanxi BLOOM TECH Co., Ltd | |
| Lot No. | 202511150025 | |
| MFG |
Nov.15 th 2025
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| EXP |
Nov.15 th 2027 |
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| Structure |
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| Item | Enterprise standard | Analysis result |
| Appearance |
White or off-white powder
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White powder
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| Water content | ≤5.0% | 0.41% |
| Loss on drying | ≤1.0% | 0.26% |
| Purity (HPLC) | ≥99.0% | 99.90% |
| Single impurity | <0.8% | 0.39% |
| Total microbial count | ≤750cfu/g | 80 |
| E. Coli | ≤2MPN/g | N.D. |
| Salmonella | N.D. | N.D. |
| Ethanol (by GC) | ≤5000ppm | 98ppm |
| Storage | Store in a sealed, dark, and dry place below -10° | |
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Humanin peptide bodybuilding is a short peptide consisting of 24 amino acids encoded by mitochondrial genes. Since its first discovery in the brain tissue of Alzheimer's disease patients in 2001, its unique cellular protective mechanism and metabolic regulatory function have gradually attracted scientific attention. Although it has not yet been approved for human clinical treatment, its potential application value has been preliminarily validated in areas such as anti-aging, metabolic health, and neuroprotection. In the field of bodybuilding, applications can be analyzed from four dimensions: cell protection, metabolic regulation, exercise recovery, and long-term health maintenance.
Cell protection: combating oxidative stress and inflammation induced by training
Bodybuilding training revolves around high-intensity resistance exercises, which essentially induce muscle micro injuries through mechanical stress and trigger the mechanism of excessive recovery. However, this process is accompanied by the generation of a large number of free radicals and the release of inflammatory factors. If not repaired in a timely manner, it may lead to cell apoptosis or tissue fibrosis.
Anti-oxidative stress
It can directly eliminate reactive oxygen species (ROS) such as superoxide anions and hydrogen peroxide, and enhance cellular antioxidant capacity by upregulating the activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx). Animal experiments have shown that Humanin treatment can increase the survival rate of myocardial cells by 40% after hypoxia/reoxygenation injury, and its effect is comparable to N-acetylcysteine (a classic antioxidant). In bodybuilding training, this protective effect can reduce lipid peroxidation of muscle cell membranes, maintain membrane integrity, and accelerate protein synthesis and metabolism.
Antiapoptosis
After high-intensity training, intracellular calcium overload in muscle cells activates the mitochondrial apoptosis pathway, leading to a decrease in the number of muscle fibers. By inhibiting the translocation of Bax protein to the mitochondrial membrane, blocking the release of cytochrome c and caspase-3 activation, training induced muscle cell apoptosis can be reduced. Research shows that in male subjects with pre diabetes, 12 weeks of resistance training can increase the level of Humanin protein in the lateral thigh muscle by 27%, accompanied by increased muscle mass and improved insulin sensitivity.
Anti-inflammatory effect
It can inhibit the NF - κ B signaling pathway and reduce the release of pro-inflammatory factors such as TNF - α and IL-6. Long term high-intensity training among bodybuilders may lead to chronic low-grade inflammation, affecting muscle recovery and fat metabolism. The anti-inflammatory properties may promote tissue repair and reduce muscle protein breakdown by regulating macrophage polarization (from M1 to M2).
Metabolic regulation: optimizing energy utilization and body composition management
One of the core goals of bodybuilding is to reduce body fat percentage while increasing lean body mass, which requires precise regulation of the balance between energy intake and expenditure. The role in metabolic regulation is mainly reflected in the following aspects:
The ability of skeletal muscle to uptake glucose can be enhanced by activating the AMPK/PI3K/Akt signaling pathway. Animal experiments have shown that injecting Humanin analogs (HNG) twice a week into middle-aged mice can reduce fasting blood glucose by 15% and also decrease visceral fat accumulation. In human studies, after resistance training for pre diabetes patients, the level of muscle Humanin is significantly and positively correlated with insulin sensitivity, suggesting that it may promote body fat reduction by enhancing muscle glucose metabolism.
Regulating lipid metabolism
It can inhibit the activity of hormone sensitive lipase (HSL) in adipose tissue, reduce the release of free fatty acids (FFA) from fat breakdown products, and thus decrease the uptake and oxidation of FFA by muscle cells. This mechanism may help reduce ectopic lipid deposition in muscles after training and maintain muscle purity. In addition, Humanin can promote liver beta oxidation and further improve systemic lipid distribution by upregulating PPAR - α expression.

Promote protein synthesis
Enhance muscle protein synthesis by activating the mTOR signaling pathway. In cell experiments, treatment can increase the protein synthesis rate of C2C12 myotubes by 30%, which is equivalent to leucine stimulation. This characteristic is highly compatible with the need for excessive recovery after bodybuilding training, and may amplify the training effect through synergistic effects.
Sports Recovery: Accelerating Injury Repair and Functional Reconstruction
The quality of recovery after bodybuilding training directly affects training frequency and muscle growth efficiency. The role of Humanin in motor recovery is mainly reflected in the following aspects:
Promote satellite cell activation
Satellite cells are key stem cells for muscle regeneration, and their activation depends on the activation of the Hedgehog signaling pathway. Upregulation of Shh (Sonic Hedgehog) expression can promote satellite cell proliferation and differentiation, accelerating muscle fiber repair. Animal experiments have shown that Humanin treatment can increase the regeneration rate of muscle contusions by 50%, while reducing fibrosis scar formation.
Regulating mitochondrial biogenesis
High intensity training can lead to mitochondrial DNA damage and functional decline, affecting energy supply. Activation of PGC-1 α expression can promote mitochondrial biogenesis and increase mitochondrial density in muscle fibers. Research has shown that treatment with analogues can increase the activity of mitochondrial respiratory chain complex IV in mouse skeletal muscle by 25%, thereby enhancing endurance training performance.
Relieve delayed onset muscle soreness (DOMS)
DOMS is muscle pain that occurs 24-72 hours after training, which is associated with the release of inflammatory factors and micro damage to muscle fibers. The anti-inflammatory and cell protective effects can significantly reduce the severity of DOMS. In human studies, subjects who received injections of Humanin analogs experienced a 40% decrease in DOMS scores and a 30% increase in muscle strength recovery rate.
Long term health maintenance: combating potential risks of bodybuilding
Bodybuilders often face long-term health risks such as overtraining, metabolic disorders, and cardiovascular disease. The potential protective effects of Humanin are mainly reflected in the following aspects:
Protecting the cardiovascular system
Humanin peptide bodybuilding can inhibit the apoptosis of vascular endothelial cells induced by oxidized low density lipoprotein (oxLDL) and reduce the formation of atherosclerotic plaque. Animal experiments have shown that treatment can reduce the area of aortic plaques in apolipoprotein E deficient mice by 35%, while improving vasodilation function. This characteristic is particularly important for bodybuilders who use steroids or growth hormones for a long time, as it may reduce the risk of cardiovascular complications.
Regulating hormone balance
High intensity training and low body fat percentage may lead to inhibition of the hypothalamic pituitary gonadal axis, resulting in a decrease in testosterone levels. Hormonal balance can be maintained by regulating GnRH secretion and inhibiting cortisol release. Research has shown that treatment with analogues can reduce stress-induced cortisol elevation by 50% and promote testosterone synthesis.
Delay the decline of aging related functions
The level significantly decreases with age, and its deficiency is associated with muscle atrophy, metabolic syndrome, and cognitive impairment. Through exogenous supplementation, it may delay the biological age acceleration of bodybuilders caused by long-term high-intensity training. Animal experiments have shown that overexpression can extend the lifespan of mice by 12% while maintaining muscle mass and cognitive function.

Application Challenges and Future Directions
Although it has shown great potential in the field of bodybuilding, its practical application still faces the following challenges:
Administration method and bioavailability
Oral administration is easily degraded by the gastrointestinal tract and currently relies mainly on injection administration, which limits its popularity. The development of novel delivery systems such as nanocarriers or transdermal patches may improve bioavailability.
Dose optimization and safety
The effective dose range of Humanin in animal experiments is relatively narrow, and excessive doses may inhibit the activity of natural killer cells. Human research needs to clarify the safe dose window to avoid potential immunosuppressive risks.
Individual differences and genetic polymorphism
The genetic polymorphism of humanin peptide bodybuildingreceptors (such as Formylpeptide receptor 2, FPR2) may affect their therapeutic efficacy. Personalized medication regimens need to be developed in conjunction with genetic testing technology.
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