Manuela
Chimiste cosmétique / PDG & Fondatrice
Manuela Valenti is the founder of By Valenti®, a cosmetic chemist, psychologist, and internationally recognized contemporary artist. With over two decades of multidisciplinary experience, she brings a uniquely rigorous and creative approach to skincare formulation and brand philosophy.
As the founder of By Valenti®, the only European skincare house in the U.S. producing authentic Castile soap, with nearly 20 years of experience in the U.S. market and a family heritage of Italian and Spanish soapmaking traditions dating back generations, she has been at the forefront of correcting misconceptions about Castile soap and advocating for authenticity in formulation. Through By Valenti, Manuela combines ancestral processes with modern science to create skincare rooted in minimalism, integrity, sustainability, and Mediterranean tradition.
At By Valenti®, Manuela leads product research and development, ingredient selection, and formulation strategy, ensuring every product reflects the brand’s commitment to efficacy, transparency, and environmental responsibility. Her background in psychology informs her consumer-centered approach, alongside her artistic practice they shape the sensory and visual language of the brand. Through her leadership, By Valenti® continues to set a higher standard for natural, science-backed honestly Italian skincare.
