Horse Hoof Hardener Like Keratex In Cm ?

Sawasdee Khrup, CM TV friends,

I am trying to get back in the groove with my classical and flamenco guitar playing, and my fingernails, unfortunately, have always been easy to break (gelatin treatment for six months made no difference).

But a friend tells me that some soft-nailed guitarists are having success with a product made to harden horses' hooves. Keratex is one well-known brand name.

Anyone seen such around here ?

thanks ! ~o:37;