No, no insecticidal shampoos. They're very harsh on the skin. That shampoo won't protect them from any of those pests if they don't have them already, and if they do, there are much safer ways (for the guinea pigs) of killing them.
You need a shampoo made for small exotic critters -- one for kittens is fine, or for small exotic pets. You should be able to get one online if you can't find one locally.