Can i use Epson ink, in an HP printer, or are they too different.

Hi.

I have an HP Envy 120e and an Epson Stylus SX525WD

I have a few bottles of colour ink from ebay, that i bought for my Epson SX525WD

Can i use the ink in my HP Envy 120e

Or do they use Dye vs Pigment or some other difference, viscosity's ect.

Thanks

John.