Book excerpt: From diet to peels-a complete picture. A skin-care expert and a medical writer provide readers with a lifelong plan for good skin. With advice for everyone from teens to seniors, they cover such topics as the importance of diet, exercise, and water intake; which "cosmeceuticals" and pharmaceuticals really work; and treatments for problems such as aging, sun damage, acne, pregnancy masks, menopause, rosacea, and more. * 17 million Americans over the age of 18 suffer from acne * Botox injections are up 553% since 1992-the third most popular plastic surgery procedure in 2001 after breast augmentation and liposuction * Full skin care regimen and treatment options for all types of skin-for both women and men.