One of the most advanced fillers, RHA is a hyaluronic filler known to smooth, plump and reshape areas where there’s a volume deficit.

​

Q: What are some unique characteristics of the RHA 2, RHA 3 and RHA 4 family of fillers?

​

A: Boca Raton, FL oculoplastic surgeon Steven Fagien, MD notes that these interesting and exciting new options in the hyaluronic filler market have a uniqueness that has some distinct advantages. “These are excellent HA fillers for blending and contouring the face without over-volumization for those that desire rejuvenation and enhancement without the need or desire for obvious projection,” he explains. “They work well to ‘blend’ facial fine lines with dermal and sub-dermal precision placement.”

 

Q: Which RHA filler works best for different areas of the face? 

 

A: Santa Monica, CA dermatologist Ava Shamban, MD notes that the main difference between each RHA filler is the amount of crosslinking between them. “RHA 2 is best for perioral lines and can also be used for the radial cheek lines and in higher levels of the dermis for a more surface level smoothing.” “One of the best under-eye fillers is RHA 2,” says New York dermatologist Julie Russak, MD. “It is approved in Europe for the under eyes, which has shown to have great success.”

 

“RHA 3 can be used for nasolabial folds and the commissures, or the corners of the mouth,” adds Dr. Shamban. “RHA 4 is best for deeper nasolabial folds and for deeper lines in the lower face and jawline. It’s also been used off-label in the midface to contour the cheeks.”