Zovirax Cream delivers the antiviral active ingredient, aciclovir, in a special formulation containing MAC-P. MAC-P is an absorption accelerator that allows the active ingredient to penetrate the skin 5 x faster to get to the area where the virus is reproducing. Once it reaches this area the active ingredient springs into action making it difficult for the virus to reproduce itself. When that happens, your body's natural defences can get to work and help to heal the cold sore. The cream also contains ingredients which help moisturise deep within the skin to soothe and protect.
24hr aciclovir penetration compared to other aciclovir creams.The Mac-P Penetrating Cream Formula in Zovirax gets to the site of infection fast to speed healing.
Zovirax Cold Sore Cream contains Aciclovir, an antiviral agent that inhibits the multiplication of the cold sore virus. It is an easy rub in formula.