Where is the fingernail polish that makes nails flexible and unbreakable?

The demo had a blown egg shell coated with the polish and then when crushed, it stayed together and in shapeWhere is the fingernail polish that makes nails flexible and unbreakable?
NailtiqueWhere is the fingernail polish that makes nails flexible and unbreakable?
nail hardener
Nail polish with hard as nails in it
I got some for a buck at dollar tree. It worked well and you can peel it off.
Hard nails by I forgot who sorry. This may not be the product you're looking for, but it works great!

this works