Mac users interested in Topaz denoise 32 bit generally download:
Topaz DeNoise is a Photoshop plug-in that offers the fastest and most effective way to reduce heavy ISO noise - putting unrivaled noise reduction quality at your fingertips. Whether you're shooting in low light, fast speeds, or other noisy conditions, DeNoise gives you the peace of mind to know that you'll always end up with a clean, clear, noise-free image.