Shag for heifers?

Has anyone tried shag for heifers or a product called Femininity?  If so what were the results or how did you like it?

We used it three years ago, Had a heifer we showed all summer, and was getting alittle fat. Didn't want to turn her out, so we put her on it.  Helped to burn some fat off her front, with out having to take her off feed to freshen her up, In My opinion it worked great.  Will use it again if we have to hold one for winter show.  That heifer ended up Reserve in Louisville.

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