How Long Do Different Wrinkle Fillers Last?

How long a filler lasts depends on:1) the properties of the filler itself - the particle size, the amount of cross linking2) the location of the injection - areas with more movement (lips, perioral) will not last as long as fillers injected into areas of minimal movememt (temples, under-eyes)3) how much is injected - the effect of a small amount of filler is going to disappear much faster than the effect of a large amount of filler3) how it is injected - a depot of filler is probably going to take longer for the body to metabolize than a thin strand of fillerIn general, though, fillers will last 6 to 12 or 18 months.  

Hi there!
There are a lot of different fillers and techniques for injection out there, both of which influence the longevity of results. For example a more volumising filler can last up to 18-24 months whereas a softer product used in the lips may only give 3-6 months of result.
Another factor that plays a role here is where the product is injected. Areas that are more 'muscle mobile' tend to not be as long lasting.
Make sure you consult with a expert aesthetics practitioner and always check what product is being used for your procedure. 
Hope this helps!
Dr Rupert