Melanin
DHA (Omega3)

Melanin
Melanopsin
Melanocyte
Melanosome
Keratinocyte
Pheomelanin

Flavin Adenine Dinucleotide (FAD)

Sulphur
Photon
Proton
Mitochondria
Redox
UVA Red Light
Omega3
Quantum Chemical

sulfur atoms comprising pheomelanin lower the pigment's ionization potential and stability, thus increasing free radical generation in comparison to eumelanin