Research Toxicologist

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The Honest Company (NASDAQ: HNST) is a personal care company dedicated to creating cleanly-formulated and sustainably-designed products spanning categories across diapers, wipes, baby personal care, beauty, apparel, household care and wellness. Launched in 2012, the Company is on a mission to challenge ingredients, ideals, and industries through the power of the Honest brand, the Honest team, and the Honest Standard. For more information about the Honest Standard and the Company, please visit

We re on a mission to empower people to live happy, healthy lives. We re a wellness brand with values rooted in consciousness, community, transparency, and design. Every day and in every way, we hold ourselves to an Honest standard. We believe that it is our responsibility to do our part to help create a healthy and sustainable future for all.

The Research Toxicologist I supports the evaluation of human and environmental safety of ingredients and finished consumer products to ensure compliance with The Honest Company s Standards, global regulatory requirements, and the highest level of consumer health protection.

This role partners closely with cross-functional teams—including R&D, Product Development, Regulatory, Legal, Quality, and external suppliers—to assess ingredient and formula safety, communicate hazard and risk-based decisions, and support the execution of toxicology testing and safety documentation across Honest s product portfolio.

• Research and evaluate new and existing ingredients and formulations against The Honest Standard, internal restricted substance lists, and global regulatory and safety frameworks.
• Conduct core toxicological assessments including:
  Hazard identification, Dose–response assessment, Exposure scenario characterization, Risk characterization for ingredients, impurities, and finished products
• Propose risk management measures as needed (e.g., use restrictions, cautionary labeling, formulation changes).
• Identify higher-risk ingredients, formulations, or raw material substitutions and collaborate with product teams to troubleshoot safer alternatives aligned with product category and use conditions.
• Manage relationships with suppliers, CROs, and third-party laboratories to ensure timely execution and delivery of documents and services.
• Facilitate the completion and maintenance of toxicology deliverables, including:
  • Toxicological Risk Assessments of products (TRAs)
  • Raw material human safety risk assessments
  • Prop 65 exposure based risk assessments
  • Safety substantiation memos and scientific justifications
• Coordinate SDS development and updates with external vendors.
• Coordinate in vitro and clinical safety testing as needed to support product launches and claims.
• Assist with third-party certifications and verifications (e.g., EWG), including data collection and scientific justification.
• Communicate ingredient and formula safety updates, decisions, and rationale clearly to cross-functional partners.
• Contribute to internal documentation, decision logs, and safety summaries to support transparency and alignment.

Required

• Master s degree in Toxicology, Pharmacology, Environmental Health, or a related scientific discipline
• 1–2 years of experience in Consumer product safety assessment and/or toxicology…