Class & Mechanism — Melanotan I (MT-1), also known as Afamelanotide, is a synthetic peptide analog of α-melanocyte-stimulating hormone (α-MSH). It acts by stimulating melanocytes to produce melanin, the pigment responsible for skin color, thus providing a natural defense against ultraviolet (UV) radiation [6].
Research-documented benefits —
– Local corpus: silent.
General-knowledge benefits —
– MT-1 has been shown to induce skin pigmentation (tanning) via melanogenesis, which increases the skin's natural protection against UV radiation, reducing the risk of sunburn and potentially decreasing the risk of skin cancer [6].
– It has been used off-label to treat conditions such as erythropoietic protoporphyria, a photosensitivity disorder, by reducing the severity of phototoxic reactions to sunlight [10].
Typical injectable protocol — Experimental; adult human SC dose range is typically 2 mg to 20 mg, administered 2 to 3 times per week, with the cycle length varying based on the individual's response and desired level of pigmentation.
Key risks / contraindications —
– MT-1 may cause nausea, yawning, and potential changes in blood pressure.
– Contraindicated in individuals with a history of melanoma or other melanocortin receptor-related cancers.
– Not recommended for individuals with uncontrolled hypertension or cardiovascular disease due to potential blood pressure effects.
Bottom line — MT-1 is primarily used in research and off-label settings for tanning and treating photosensitivity disorders, and its use is restricted to specific populations due to its effects on melanin production.
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References
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