Stylist Sandra Guessfeld Sandra Guessfeld has been in the business for 35 years.  She is a trained color specialist by Redken at Redken's Training Center in New York.  She attends major training sessions in spring and fall to keep up with the new trends.    "I  love every aspect of the business.  Most rewarding are total makeovers, to see a client happy on the inside (about themselves) and the outside (a new look)."