The answer depends on how your skin ages. There are 3 distinct traits of aging skin:
Sinking Skin
This is where key areas of the face experience volume loss and hence have a “hollowed out” appearance. Thermage treatment works better for sinking skin as it does not involve melting fats.
Sagging Skin
Sagging skin and loose skin occurs due to the loss of elasticity and collagen. HIFU is more suitable as a skin tightening treatment as it also melts some excess fat and tissue at the same time.
Wrinkles
Characterised by wrinkly skin around the eyes, brows and lips, this condition can be treated using Thermage and/or HIFU. Those with multiple wrinkles and fine lines on the brows and eyes are likely to benefit more from Thermage while those with wrinkles and saggy skin are better off with HIFU.