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Proof

Leadership · CEO & Formulator

Sarah Miletich

The chemist who formulates every Proof product.

  • B.S. Organic Chemistry
  • M.S. Cosmetic Science
  • NBBJ Forty Under 40, 2025
Sarah Miletich

About Sarah

Background

Sarah Miletich is Proof's CEO and the chemist behind every Proof formula. She trained in organic chemistry and cosmetic science, and her graduate capstone looked at how cannabis is absorbed through the skin, the science behind Proof's topicals.

She worked in medicine before moving into cannabis in 2017, and she brings that evidence-first approach to every product: refined cannabinoids for consistency from batch to batch, simple ingredients, and doses people can measure.

What Sarah does at Proof

  • Formulates every Proof product, from the drops and capsules to the topicals.
  • Leads the company as CEO.
  • Co-hosts the Proof of Wellness podcast, launched in February 2026.

Writing and podcast

From Sarah