melanogenesis and skin pigmentation

from MC1R activation to melanin production -- and why bypassing UV feedback matters

the melanogenesis cascade

Melanotan II drives pigmentation by activating the same MC1R-cAMP-MITF pathway that UV radiation triggers endogenously. the critical difference is that exogenous activation bypasses the normal UV feedback loop, producing melanin without the DNA-damage signal that normally initiates it.

melanogenesis pathway explorer

trace the signaling cascade from receptor activation through transcription factor upregulation to melanin synthesis in the melanosome.

melanogenesis pathway explorer

Knowledge Check

test your understanding of the melanogenesis cascade and UV bypass.

Practice

apply the pigmentation biology before moving to chemistry.