Lief Labs
Wellness and Fitness ServicesCalifornia, United States51-200 Employees
Lief Labs operates as a full-service partner in the dietary supplement space, combining formulation and product development with manufacturing capabilities. Its in-house team develops formulations that balance taste with advancing science, while its cGMP-certified facility provides custom manufacturing solutions across a range of supplement categories. With more than 15 years in the industry, the Valencia-based company emphasizes collaborations with entrepreneurial brands to support scalable, regulatory-compliant growth. The company serves brands seeking turnkey operations that streamline development and production while aligning with national-brand standards. In 2026, Lief Labs appointed Dr. Brianna M. Diorio as Head of Technical Sales, signaling ongoing expansion and a focus on evidence-based innovation.