Parabens is a class of widely used preservatives popular in cosmetics. However use of parabens has been shown to cause contact dermatitis and skin irritation in some people. Also when exposed to sunlight it may cause additional skin damage. At Rinica we don't use artificial preservatives such as parabens - we opt for Vitamin C and refrigeration .
Source : https://en.wikipedia.org/wiki/Paraben#Health_aspects