I have 30 years of experience, and specialize in the field of pharmaceutical and cosmetic products with specific knowledge in the areas of emulsions and surface chemistry, formulation design and topicals and transdermals. I have published on such topics as surface chemistry, liquid and semi-solid formulation design, topical and parenteral products and cosmetic and personal care formulations. I have testified 20 times on topics such as surface chemistry and surfactants, topical, transdermal and parenteral formulations and cosmetic and personal care products.