A weak jawline describes a lack of definition at the transition from the lower face into the neck. 

Genetics plays an important role in the presence of a weak jawline. 

However, with ageing, the jawline often becomes less defined due to numerous factors including loss of volume in the mid face as well as increased bony resorption in the jaw area. 

Treatments which can help with this concern include:

• Dermal fillers 
• Botulinum Toxin