Paintings made using natural sepia cuttlefish ink.

authentic sepia ink

Cuttlefish ink is a beautiful natural brown pigment.

You don't smell the slightly fishy odor from the natural sepia ink on the internet.

natural squid pigment of cuttlefish

Sepia being composed mostly of mollusc melanin, has the same color as the principal human skin brown pigment.

Authentic sepia ink is prepared from the dried ink sacs of the common cuttlefish, Sepia officinalis. Being a naturally derived organic colorants, the pigment is usually considered as not lightfast. But that's proved wrong as shown in these tests. Good scientists need to be able to recognize imminent paradigm shifts and pigment smears and adjust hypotheses accordingly.

cuttlefish squid difference
sepia pigment was traditionally derived from what source

Cuttlefish ink was traditionally used as a slightly fishy sepia pigment

Anything but sluggish, cuttlefish are the action painting metaphors that art needed. Deeply buried squid ink on paper bolstered by practices that integrate art with humor, have risen to the surface.

I would only worry deeply if I was a mollusk.