Thanks for sharing your photo bruno. The differences in the powder may only be cosmetic. Both products could have appeared the same once upon a time...during transit/handling it will often break apart. Either way, the pure peptide product should be durable, dissolve on impact & perform the same. With all the differing sources and synthesizers out there, don't infer purity from the freeze dried melanotan 2 powder appearance. Great question!
Melanotan is correct.* The manufacture process creates a very fragile foam like texture that can break up with rough handling.* The variation in your photo is normal if the product still dissolve in the same fashion.