For high-end retouching, use Portraiture on the "low frequency" (color/tone) layer while keeping the "high frequency" (texture) layer intact. Conclusion
Tweak the Detail Smoothing sliders (Fine, Medium, Large) to your preference. portraiture plugin for photoshop cs5
Unlike destructive blurring tools, it selectively smooths imperfections while maintaining the skin's natural pore structure. For high-end retouching, use Portraiture on the "low