We live in a world of specialists. There's a for a reason for that. Those who have treated their saddle with WD-40 or washing up liquid in the past will undoubtedly have experienced what we mean.
A clean saddle is one thing, but when you spend the next 150km on a dangerously slippery saddle, its cleanliness soon becomes irrelative.
Keep riding safely, and above all: stay firmly in the saddle, by using a cleaner that's fit for the job. A specialist.