Hi Dave...
Welcome to
RP.
If your objective is to soften wrinkles a bit, here's something to try...
* Duplicate Background
* Apply Noise > Dust & Scratches [blur it quite a bit] to the duplicated layer and change the layer blend mode from Normal to Lighten
* Layer > Add layer mask > Hide all (black mask)
* Choose Brush tool, turn on airbrush setting, Opacity ~25%, Flow ~ 35%
* Foreground color = white
Airbrushing white on the black layer mask over wrinkled skin areas should hide them w/o too much texture loss.
Is this more or less where you wanted to go? There are other methods for more severe wrinkle surgery.
~Danny~