Dermal filler injections no longer use animal collagen, but safer, longer-lasting materials such as Calcium Hydroxylapatite that do not require prior testing for allergy. CHA dermal filler is a thicker gel and lasts longer, and may be preferred for larger areas such as plumping up sunken cheeks and treating deeper furrows and lines. CHA dermal fillers are generally best for the mid to lower face except the lip.
The procedure involves multiple fine injections to the treatment area. Anaesthetic may be required depending on the region. A cream anaesthetic applied 15–30 minutes beforehand may be helpful. Many patients find the application of ice alone sufficiently numbing to reduce the injection discomfort to a manageable level. At the completion of the treatment, the doctor/ nurse may need to massage the treated area to help mould the dermal filler into place.
CHA dermal filler is a thicker gel and lasts longer, and may be preferred for larger areas such as plumping up sunken cheeks and treating deeper furrows and lines. The other dermal fillers do not last as long but are available in varying degrees of consistency, making them more versatile. Thicker dermal fillers can be used for deeper lines such as the cheek furrows, while thinner dermal fillers can be used on finer lines such as the crows feet around the eyes and smokers lines on the upper lip. Other dermal fillers are preferred for lip enhancement and shaping. CHA dermal fillers are generally best for the mid to lower face except the lip.
