Honasa Consumer has appointed Kaustav Guha as vice president of research & development to strengthen its R&D capabilities.Guha will lead R&D initiatives and product formulations across Honasa's brands including Mamaearth and Aqualogica.The appointment comes after Honasa's acquisition of CosmoGenesis Labs to enhance its research capabilities.The move aims to address negative consumer feedback regarding the quality of Mamaearth's products.