If you read the info on it, you will see that it's a precursor to denosyl...It works in the same way as denosyl.
http://www.nutramaxlabs.com/products...NTBROCHURE.pdf HomeVet Online Store "The methyl groups produced from DMG can be used to form the essential amino acid, methionine, from homocysteine. Methionine in turn is used to produce S-Adenosylmethionine (SAMe), the active transmethylating agent in the body." ''
SAMe is adenosylmethionine which is "denosyl."
Denamarin does not contain b-vitamins but has a small amount of vitamin E.
Hepatosupport contains b-vitamins but not vitamin E, so you would need to supplement with vitamin E if you want your baby to have vit E.