chatty,
A couple of your posts say [Nevlar Fiber]; I think that's a typo. It's actually Kevlar Fiber. I got some of it. And my nails showed an immediate improvement. I'm so grateful for the tip. My nails look better than they ever have! Thank you. Thank you. Thank you.
Ciao for now,
bonnie rose
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https://www.amazon.com/author/bonnie.mill-lemke
https://kdp.amazon.com/en_US/bookshelf