India, Oct. 3 -- Facial ageing is not limited to changes in skin quality. Changes in facial volume, tissue laxity and the overall shape of the face can also affect how someone looks as they age. In a September 10 Instagram post, Dr Amir M Karam, a California-based plastic surgeon, outlined some of the principles he follows when approaching facial rejuvenation. (Also read: Woman loses 32 kg in 5 months from 130 kg, shares her diet and workout: 'I couldn't imagine being here' )

According to Dr Karam, fillers can be useful when facial ageing is primarily linked to volume loss, but they cannot address significant tissue descent. "Once the tissues of the face have significantly descended, adding more volume won't lift them back into position ...