When skin is extremely slack and sagging (on the upper eyelids or at the neck), even the most extreme nonsurgical treatments won't be able to repair it to the patient's satisfaction. This is when surgery is the best answer, and I encourage my patients to have it done. I've worked with people who would have been better off getting a face-lift but flat-out refused to have one. They wanted fillers and Botox to transform them. Ultimately, even though their procedures were successful, they were disappointed because they wanted more dramatic results.
By the same token, a face-lift won't do anything for dull, sun damaged skin or brown spots. For this reason, the plastic surgery and dermatology fields overlap.
Find out more about this book:Simple Skin Beauty: Every Woman's Guide to a Lifetime of Healthy, Gorgeous Skin