Do we know that the pigment is actually the only thing in Etsy sellers' products? There was a NYC paint maker who passed off organic pigments in his paints as expensive old pigment paints, like vermilion, Naples yellow, and lead-tin yellow. He would even add grit to the latter two to fool people. Buying from Kremer and making the paints by hand is the only way to be sure you're using the real thing, unless you send those Etsy samples to a lab for analysis.
Do we know that the pigment is actually the only thing in Etsy sellers' products? There was a NYC paint maker who passed off organic pigments in his paints as expensive old pigment paints, like vermilion, Naples yellow, and lead-tin yellow. He would even add grit to the latter two to fool people. Buying from Kremer and making the paints by hand is the only way to be sure you're using the real thing, unless you send those Etsy samples to a lab for analysis.