Can't get particle system color over life working.

I want my particles to fade out but they don’t.

This is my material.

In my particle system i have set the particle over life alpha settings.

Why aren’t my particles fading out?

Chosker is right you need to set your second point to 1.0 (marking the end of your particles life time as it only goes from 0 to 1), but I also notice you are using ‘vertex colour’ node in your material…

Replace that with ParticleColor node and hook it up the same way, then the particles will fade out.