An acrylic-based one-coat painting solution, designed to simultaneously shade, saturate, and highlight miniatures. 
Despite the word "Purple" in its name, its actual colouration gives off a 'strong pink', giving it a lighter, vibrant, red-tinted purple/pink finish over light primers.
It flows heavily into recesses for deep shadow contrast while pulling away from sharp edges to create natural highlights.
For maximum vibrant saturation, prime your model with a matte white or bright beige base coat, a hard palette or plastic well plate is recommended because the intense pigments can bleed into and permanently stain standard wet palette foams.