I looked up Palmer's with a lot of ingredients unnecessary to skin:
Water (Aqua), Theobroma Cacao (Cocoa) Extract,
Glyceryl Stearate,
Petrolatum, Propylene Glycol,
Glycerin, Cocos Nucifera (
Coconut)
Oil,
Mineral Oil (Paraffinium Liquidum), Theobroma Cacao (Cocoa) Seed Butter,
Elaeis Guineensis (Palm) Oil,
Cetyl Alcohol,
Dimethicone, T
ocopheryl Acetate, Fragrance (Parfum), ...
On the other hand, 100% cocoa butter is cheaper:
https://www.cococare.com/100-cocoa-butter-stick.html
Never used it on the feet before, but will.