What sort of chemical skin peel should I use for back acne?

Many products contianing alpha-hydroxy acid will work effectively for
most skin types.

Colloidal silver is known to eradicate acne, you can find get it at-
www.colloidalsilverzone.com

As someone who has suffered from bad back acne for years, and who has
tried just about everything, I recommend Proactive products (
www.proactive.com ). They don't offer a skin peel per se, but their
stuff works soooo much better than ANY product (including
prescriptions) that I've ever used. I use the Deep Cleansing Wash on
my back, and it keeps my back clear. (Before using their products, my
back was always broken out and usually had large, tender acne spots.)

My doc informed me that benzoyl peroxide is the *only* thing that will
work on acne after repeated use; everything else eventually stops
working. The Deep Cleansing Wash combines benzoyl peroxide with an
effective but natural defoliant, which gets down to the acne that's
trying to surface. (Working much the same as a skin peel.)

I hope this helps you,
Kriswrite