If you are concerned about some perservatives having parabens, I found another preservative that you can chose from. I have never used Cosmocial CQ before so I do not know how well it works. I have always used Germall. Give it a try if you like and let us know what you think.
Cosmocil cq has recently received world-wide approval and is now available (from "lotioncrafter" and "snowdrift farm"). this new preservative is parabens free and does not release formaldehyde. Like phenonip, cosmocil cq can be used at higher temperatures -- up to 284°f (140°c), but unlike phenonip, it is low-odor so you won't have to deal with camouflaging the smell. Unfortunately, cosmocil cq is only water soluble (add to the water phase), so unlike phenonip, it's not miscible in oil and can't be used in an all-oil produce (e.g. salt/sugar scrubs). the usage rate ranges from .5% to 1.5%, with the typical usage rate being 1% of your total formula. Cosmocil cq is composed of and should be labeled as: polyaminopropyl biguanide.
For more information about preservatives for your body products, check out this link http://home.earthlink.net/~skinesscentuals/Preserve.htm.