The Daily Mail's Liz Jones claimed Holly's recent make-up free Twitter picture was "anti-feminist", suggesting the TV presenter was a "playground bully".
A furious Phillip defended his co-presenter, tweeting: "I swear there can be no greater force against all womankind than Liz Jones. She is inconsistent, bitter, nasty and unhinged."
In her article, Jones wrote: "I wager these supposedly bare-faced snaps are not what they seem: their lashes have probably been dyed and enhanced with extensions, brows tinted, skin tanned.
"That luscious, artfully tousled hair has been dyed a fetching shade, kept in perfect condition - and often supplemented with extensions.
The journalist went on to suggest that Holly was guilty of "not admitting all the effort" that went into looking so good, and declared: "Women like Holly... are saying to the rest of us: I am too busy to wear make-up at home.
"I am not vain, or frivolous, I am DEEP. My husband loves me for who I am: naturally gorgeous."
Jones then described such women as "the ultimate playground bullies" for pretending that they need no help, writing: "Unlike the Hollys... the rest of us have the humility to admit we need a little bit of help."