It was only a matter of time before the ugliness at Valeant impacted its beauty operations. L'Oréal announced today the signing of a definitive agreement with Valeant to acquire the skin care brands CeraVe, AcneFree and Ambi for $1.3 billion. That's a hefty price to pay for brands with combined annual sales of $168 million. But observers suggest the price tag is worth it, especailly since so many dermatologists recommend the CeraVe brand “The valuation is pretty high, this is a de...