Nope, not made frombananas.
Translucentpowdersare often used for setting your makeup, but that can be problematic.
Makeup artist and US brand ambassador for Maybelline New York Jenna Kristina toldPopSugarwhy banana powder beats translucent powder.

Turns out that it’s just a rumor.
Her makeup artist Mario Dedivanovic confirmed that he wouldn’t use the product on his client’s famous face.
“It would look too yellow under her eyes, way too muddy.

I’ve never used banana powder, no” (viaRacked).