MELANOTAN II · 10 MG | Análogo de Melanocortina para Bronceado y Estética

Key Benefits of Melanotan II Melanogenesis Stimulation for a Natural Tan Melanotan II activates the MC1R receptor on melanocytes, initiating the cAMP/PKA signaling pathway that increases eumelanin production, the pigment responsible for natural tanning . This process results in a deep, uniform, long-lasting tan that develops gradually over 2-6 weeks of consistent use. Unlike self-tanners that only stain the superficial skin layer, Melanotan II stimulates melanin production from within, resulting in a more natural and durable tan . Rapid and Efficient Tanning with Less UV Exposure Phase I clinical studies demonstrated that just 5 low doses administered on alternate days produced a visible increase in pigmentation on the face, torso, and buttocks one week after treatment completion . Controlled sun exposure accelerates and potentiates the effect, allowing a deep tan to be achieved with significantly less UV exposure time, thus reducing the risk of skin damage and premature aging . Libido Support and Erectile Function Melanotan II acts centrally through the MC4R receptor in the hypothalamus, a mechanism distinct from PDE5 inhibitors . In clinical studies of 10 men with erectile dysfunction, Melanotan II (0.025 mg/kg) initiated erections in 12 of 19 injections versus only 1 of 21 placebo doses . Mean rigidity was 6.9/10 and mean duration of rigidity &amp;gt;80% was 45.3 minutes (p = 0.047) . Sexual desire level was significantly higher after Melanotan II administration than after placebo . Appetite Suppression and Muscle Definition MC3R and MC4R receptor activation has also been associated with appetite suppression and lipolytic activity, contributing to muscle definition and body composition . Studies in animal models have demonstrated that melanocortin system activation reduces food intake and increases energy expenditure, effects that may contribute to better muscle definition and a more aesthetic body composition. Overall Aesthetic Enhancement In addition to tanning, Melanotan II contributes to an overall improved aesthetic through several mechanisms: More uniform skin: Natural tan provides a more uniform skin tone, reducing the appearance of imperfections, scars, and stretch marks. Muscle definition: Tanning accentuates muscle definition, improving physical appearance and overall aesthetics. Greater confidence: Improvement in physical appearance and libido support contribute to greater confidence and overall well-being. Durable and Cumulative Effects Melanotan II&amp;#039;s pigmentation effects are long-lasting, persisting for weeks after completing the administration cycle . With repeated cycles, effects may be cumulative, allowing maintenance of the desired tan with minimal sun exposure and less frequent maintenance cycles.

Function and Mechanism of Action of Melanotan II Melanotan II is a synthetic cyclic analog of alpha-melanocyte stimulating hormone (α-MSH) that acts as a non-selective agonist of melanocortin receptors MC1R, MC3R, MC4R, and MC5R . Its cyclic structure confers greater metabolic stability and a prolonged half-life compared to endogenous α-MSH . Detailed Mechanism of Action: Melanogenesis Stimulation: Melanotan II activates the MC1R receptor on melanocytes, initiating the cAMP/PKA signaling pathway that increases eumelanin production, the pigment responsible for natural tanning . Eumelanin is a natural photoprotectant that absorbs UV radiation and protects skin from damage. Melanotan II&amp;#039;s higher affinity for MC1R (Ki: 0.67 nM) explains its potent pigmenting effect. MC4R Activation for Erectile Function and Libido: Melanotan II acts centrally through the MC4R receptor in the hypothalamus, a mechanism distinct from PDE5 inhibitors that act peripherally . MC4R activation produces spontaneous erections in humans, as documented in clinical studies . Persistent cAMP signaling after Melanotan II exposure, demonstrated in neuroblastoma studies, suggests that MC4R receptor intracellular signaling stimulated by Melanotan II persists even after receptor internalization . MC3R and MC4R Activation for Appetite Suppression: MC3R and MC4R receptor activation has also been associated with appetite suppression and lipolytic activity . These receptors are key components of the melanocortin system that regulates energy balance and food intake. Photoprotective Action: α-MSH analogs, including Melanotan II, have demonstrated photoprotective effects, including reduced apoptosis, decreased hydrogen peroxide release, and improved DNA photoproduct repair in melanocytes exposed to UV radiation . Persistent cAMP Signaling: A study by Molden et al. (2015) demonstrated that Melanotan II induces cAMP signal that persists for at least 1 hour after peptide removal from the medium, unlike α-MSH which reverses quickly . This persistent signaling may explain the prolonged duration of Melanotan II&amp;#039;s effects.

How to Use Melanotan II Route of Administration: Injectable via subcutaneous (SC). Subcutaneous administration is the standard method for Melanotan II, allowing gradual and constant absorption. Injection sites should be rotated (abdomen, thigh, gluteal region). Clinical studies have demonstrated that SC dose is completely bioavailable compared to intravenous dose . Reconstitution: The product is presented as a lyophilized powder in a sterile vial. It must be reconstituted with bacteriostatic water for injection (or sterile water for injection) before use. Add the diluent slowly, gently swirling the vial to dissolve the powder. Do not shake vigorously. Research Protocol: Dosage and frequency must be determined by the researcher according to protocol goals. Common research protocols for Melanotan II use: Dose: 0.025-0.1 mg/kg per administration (approximately 0.5-2 mg for an average adult) . Frequency: 1 time daily or every other day for 2-6 weeks to achieve desired tan. Maintenance: 1-2 times per week after achieving desired tan. Phase I clinical studies demonstrated that 5 low doses administered on alternate days produced a visible tan one week after treatment completion . Storage: The lyophilized powder should be stored in a cool, dry place, protected from light and at controlled temperature (2-8°C). Once reconstituted, it must be refrigerated (2-8°C) and used within 30 days. Important Notice: Product intended EXCLUSIVELY FOR SCIENTIFIC RESEARCH in vitro and in animal models. Melanotan II is not FDA-approved for any human use and is classified as Category 2 by FDA (substance under evaluation) . No regulatory clinical trials have been completed for Melanotan II; the research supporting its effects comes from Phase I studies and case reports . Reported side effects include nausea, facial flushing, changes in moles (including new mole appearance), rapid darkening of existing moles, and in isolated cases, prolonged erections . Its use carries significant risks and the researcher is solely responsible for safety and compliance with applicable regulations during protocol development.

Ingredients of Melanotan II Active Ingredient: Melanotan II (Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-NH2): A synthetic cyclic analog of alpha-melanocyte stimulating hormone (α-MSH) that acts as a non-selective agonist of melanocortin receptors MC1R, MC3R, MC4R, and MC5R . Its cyclic structure confers metabolic stability and prolonged activity. The active ingredient purity is ≥99% by HPLC-MS. Excipients: Mannitol: A sugar alcohol that acts as a cryoprotectant and bulking agent, used to stabilize the peptide structure during the lyophilization process. Water for Injection (WfI): High-purity water (USP/EP grade) used as a vehicle in the lyophilization process. Note for Researchers: This product is a high-purity synthetic peptide (&amp;gt;99% by HPLC-MS), manufactured without unnecessary additives, preservatives, or fillers. Its production is carried out under strict quality control standards (GMP). Melanotan II is not FDA-approved for human use.

Onset Time &amp;amp; Expected Results of Melanotan II Onset of Action (Days to Weeks): Melanotan II begins acting within the first hours after administration, with pigmentation effects observed within the first days. Phase I clinical studies demonstrated that just 5 low doses administered on alternate days produced a visible increase in pigmentation on the face, torso, and buttocks one week after treatment completion . Controlled sun exposure accelerates and potentiates the effect. Measurable Benefits (2-4 Weeks): Tanning becomes visible within the first 2-4 weeks of consistent use, with a darker, more uniform tone developing gradually. Libido and erectile function effects may be observed within the first hours or days after administration, with spontaneous erections reported in 63% of administrations in clinical studies . Full Effect (4-6 Weeks): For full tan and maximum pigmentation, the full effect often requires 4-6 weeks of consistent use according to the research protocol. Effects persist for weeks after completing the administration cycle . Factors Influencing Results: The speed and magnitude of results depend on dose administered, administration frequency, skin type (phototype), sun exposure, and adherence to the research protocol.

Clinical Research &amp;amp; 3rd Party Test Results of Melanotan II Scientific evidence on Melanotan II comes primarily from Phase I studies and case reports, as no regulatory clinical trials have been completed for this compound . Research has demonstrated its effects on pigmentation, libido, and erectile function. Clinical Evidence in Humans: Pigmentation Studies: A Phase I study demonstrated that just 5 low doses administered on alternate days produced a visible increase in pigmentation on the face, torso, and buttocks one week after treatment completion . The effect persisted for weeks after completing the regimen. Erectile Dysfunction Studies: A double-blind placebo-controlled study of 10 men with erectile dysfunction demonstrated that Melanotan II (0.025 mg/kg) initiated erections in 12 of 19 injections versus only 1 of 21 placebo doses . Mean rigidity was 6.9/10 and mean duration of rigidity &amp;gt;80% was 45.3 minutes (p = 0.047) . Sexual Desire Studies: Sexual desire level after injection was significantly higher after Melanotan II administration than after placebo . A study of 20 men reported increased sexual desire after 13/19 (68%) Melanotan II doses versus 4/21 (19%) placebo (P&amp;lt;0.01) . Preclinical Evidence: cAMP Signaling: A study by Molden et al. (2015) demonstrated that Melanotan II induces a cAMP signal that persists for at least 1 hour after peptide removal from the medium, unlike α-MSH which reverses quickly . Photoprotective Effects: α-MSH analogs, including Melanotan II, have demonstrated photoprotective effects, including reduced apoptosis and improved DNA photoproduct repair in melanocytes exposed to UV radiation . Regulatory Status: FDA Classification: Melanotan II is classified as Category 2 by FDA (substance under evaluation) and is not approved for any use in the United States . Lack of Regulatory Trials: No regulatory clinical trials have been completed for Melanotan II; the research supporting its effects comes from Phase I studies and case reports . Research Use: Melanotan II is available for in vitro and animal model scientific research. Products sold through online vendors without a prescription are not regulated by FDA . Safety Considerations: Reported side effects include nausea (21% incidence of severe nausea in clinical studies) , facial flushing, yawning, mole changes (including new mole appearance), and rapid darkening of existing moles . In isolated cases, prolonged erections (priapism) have been reported . Melanotan II use carries significant risks and is not recommended without medical supervision. Syntex Labs Quality Standards: Lab Grade: Purity ≥99% by HPLC-MS. QR Tracking: Complete batch traceability. Secure Batch Label: &amp;quot;Scratch to See&amp;quot; security system. 3rd Party Results: Access to Certificates of Analysis (COA) from accredited external laboratories.

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MELANOTAN II · 10 MG | Análogo de Melanocortina para Bronceado y Estética

MELANOTAN II · 10 MG | Análogo de Melanocortina para Bronceado y Estética

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