What does panthenol do for lashes, and why is it included in a mascara formula?

Panthenol is a Vitamin B5 derivative that penetrates the hair shaft and converts to pantothenic acid once absorbed, delivering deep conditioning and moisture to each lash. In a mascara formula, this matters because repeated application and removal cycles, along with daily exposure to environmental stressors, can leave lashes brittle, dry, and prone to breakage over time. Panthenol helps counteract that by hydrating and conditioning lashes from within the formula itself, supporting flexibility and resilience so lashes feel healthier with consistent use. It is one of the ingredients that distinguishes a formula designed with lash care in mind from one focused purely on cosmetic effect.

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William Levins

Bill Levins, a marketing professional since the early 1990s, collaborated with clients like Campbell’s Soup and PWC. In 2004, he began working with Reviva Labs, becoming VP of Marketing in January 2018 and President in June 2018. He led the company through challenges, including the founders' deaths and the COVID-19 pandemic. In June 2024, after Reviva Labs' acquisition by Sendayco LLC, Bill became VP of Marketing for Sendayco, overseeing multiple brands.