Karen Asquith is the national director of education for G.M. Collin Skin Care, developing innovative skin care training programs to elevate the aesthetician’s professional expertise. For the past two decades, Asquith has consistently been featured as a guest lecturer at skin care industry forums, presenting cutting-edge skin care protocols and career development workshops throughout North America. She has been the lead aesthetician every year since…

Michelle D'Allaird-Brenner is a licensed aesthetician, cosmetologist, CIDESCO diplomat, and the owner of Aesthetic Science Institute (ASI), based in Latham, N.Y. She has over 25 years of experience in the skin care and beauty industries, including teaching, curriculum and test development, speaking, and writing. D'Allaird-Brenner is also the director of education for Aesthetics International Association and a member of Professional Beauty Association and American Association…

Douglas Preston’s career spans over 30 years in professional aesthetics, spa management, and skin care career mentoring. His business articles appear in many of the top trade journals and magazines. He is past-president of Aesthetics International Association and former committee chairman for The Day Spa Association. His recently published book, An Esthetician’s Guide to Growing A Successful Skincare Career, is a top-seller among ambitious working…

Boldijarre Koronczay, president of Eminence Organic Skin Care, is an icon of the spa industry. Having personally trained over a quarter of a million professionals in the past two decades, his humorous and entertaining presentation style, combined with first class education and Hungarian-inspired treatment techniques, make his Master Classes a crowd favorite at every industry event. His passion for the industry drives him to continue…