I have been using the Zinc C Serum and  Moisturizer  for the past six years. I suffered with eczema and severe cracking in my hands. It got to the point that I had to put on 5-10 Band-Aids a day to protect my hands. I found out about Malibu C and tried their product and have been using it since then. I would tell anyone who asked me about my hands that I was using the Zinc C Serum and that it does wonders.