From the Manufacturer:
The Skin Tones Paint Set allows you to create highly realistic skin tones on your miniatures. All colours and washes have been carefully developed to cover the widest possible range of natural skin tones - from fair to dark and everything in-between. With a wide combination of base colours, washes, and highlights it is easy to achieve fantastic and realistic results.
All of the colours in this set are made using our high-quality and heavy-pigmented Warpaints formulation – each are completely new and unique colours to the range.