What type of silicone should I use?

For casting a human character silicone bust. Thanks for any info.

 

There are different types of silicone you can do a brush on mold that will require a jacket around it or you can do a pourable you should check out some of Smooth On's videos on the basics here's the link Mold Making Videos and Photo Tutorials presented by Smooth-On, Inc

 

I totally agree to smooth on, love their stuff and I am only using it. So happy that I have a supplier just in the next town.