Q: I have seen your columns about the AOGNY skin tightening machine and what it did for your jawline and under your chin. Have you tested any other models and how do they stack up? Do you use the ...

Radiofrequency (RF) therapy, also called radiofrequency skin tightening, is a nonsurgical method of tightening your skin. It involves using energy waves to heat the deep layer of your skin known as ...

Q. I read your article about the gel to use with the RF skin tightening machine, but not the one recommending the machine itself. What brand were you referring to and how has it worked for you? —W.B.

While incorporating antiaging skin care products into your wrinkle-fighting routine may help improve the firmness of your skin, these formulas do not compare to the skin-sculpting results of the best ...

Many readers have asked me for recommendations for a smaller RF skin machine that is suitable for travel. After years of searching I finally have one worthy of recommendation, and it makes a fine ...

I purchased the RF skin treatment machine you recommended and can’t find the original RF gel for sale anywhere. Is it available on its own, and if not does it matter what brand I use? — K.L., Sandusky ...

I mentioned that my shaver review led to my being introduced to some interesting new products. The best so far is the AOGNY High Frequency Facial Machine, and for some of you reading this it is likely ...