is melanotan 1 or 2 better Melanotan-1 vs Melanotan-2: Tanning Peptides Compared - Which Better? | PPW Melanotan 1 10mg Vial |
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They are significantly more expensive than powdered formulas, though

Meta-analysis revealed no statistically significant difference in the incidence of any specific adverse event between the two groups, including abdominal pain, constipation, increased appetite, decreased appetite, headache, rashes, sedation, irritability, aggressions, insomnia, self-injurious behavior, diarrhea, and anxiety

Cartier P., Chilliard Y., 1990

The effects in this regard are highly variable and may affect learning, attention, and motor coordination, in addition to modifying sexual and eating behaviours