Sulphur (sulfur in America) accounts for nearly 10% of a healthy
body’s content and is vital to nail, muscle, hair and skin cells. Make sure you fill up on Brussels sprouts, cabbage, dairy products, eggs, garlic, lean meet, seafood, nuts, seeds, pulses, onions, turnips, wheatgerm and whole grains.
I got this information from a book called “A Complete Guide To Manicure & Pedicure” by Leigh Tostelli.
I would recommend you read this book, especially for those who work in this profession. It teaches you the way the spas would treat you, and also gives you an easier and cheaper solution for you to do at home.