You might consider what left you with a less than aesthetic appearance or a complication prior to considering the addition of another dermal filler. Many of the problems encountered can be corrected through either massaging, extraction, or some addition of the same filler, etc. Many areas of ovecorrection, undercorrection, or surface irregularities can be improved (not always resolved) through either massaging, extraction (if recently injected) or the additional of small amounts of filler. Sometimes an undercorrection can be experienced if the physician injected your particular deep subdermal or, more likely, in the subcutaneous plane. Remember that all patients will swell immediately after injection, and may exhibit residual swelling for days after the initial injection. Thus, hold off on any sharp criticism and decision planning until you're confident that the majority of the swelling has resolved. Even in the most skilled hands, sometimes patients exhibit a better result with one dermal filler than another, etc. It is my suggestion that you stay with that same product that's previously worked. Keep things simple. Choosing a larger particle-based filler for deeper lines (Sculptra, Artefill, Radiesse) can be complemented with a small particle for more superficial lines (Juvederm, Restylane, Perlane), etc. In addition, we know Botox and fillers are complimentary as well. But I believe using multiple products during the same injection period can complicate what should be a straightforward process. However, it is my suggestion that trying to find out why a less than optimal aesthetic appearance resulted is more important than simply adding in one more product into the mix.