Ryenne User
@ryenneuser
I lead personal care product launches from concept through commercialization.
United StatesWhat I'm looking for
At Burt’s Bees, I’ve led 25 personal care product launches from initial concept through commercialization, coordinating formulation, claims and safety testing, packaging compatibility, scale-up, and manufacturing readiness.
I solve real-time manufacturing bottlenecks, build integrated project timelines, and partner across internal teams and external suppliers to deliver products on time while meeting Clean Beauty needs. I’ve also led OTC development, stability, and method validation for acne and SPF products, and identified supplier simplification initiatives that reduced expenses by 15%.
Earlier, I coordinated development of 10 personal care products, established preservation best practices, and applied mass spectrometry and analytical skills to biotherapeutics and personalized vaccines. I enjoy mentoring junior scientists and building high-performing cross-functional teams.
Experience
Work history, roles, and key accomplishments
Senior Scientist (Product Development Lead)
Burt's Bees
Jan 2021 - Present (5 years 7 months)
Owned and executed 25 personal care product launches from concept to commercialization, developing integrated timelines and solving manufacturing issues. Mentored junior scientists and led OTC formula development.
Scientist II (Product Development)
Burt's Bees
Jan 2019 - Jan 2021 (2 years)
Coordinated codevelopment of 10 personal care products from ideation to commercialization, managing timelines and resources. Developed preservation best practices and demonstrated proficiency with SOPs, GLP, and cGMP.
Characterized mAb therapeutics and personalized vaccines using mass spectrometric techniques, interpreting complex datasets. Applied analytical skills to ensure assay robustness.
Intern (Product Development)
Burt's Bees
Jan 2017 - Jan 2018 (1 year)
Evaluated natural preservation systems for cosmetic and personal care products and created a natural preservative reference library. Developed and evaluated fragrance concepts for lip and skin care products.
Protein Analytical Chemistry Intern
Medivation
Jan 2016 - Dec 2016 (11 months)
Characterized mAb therapeutics using mass spectrometry and capillary electrophoresis, ensuring assay robustness. Participated in upstream and downstream process development and method development.
Education
Degrees, certifications, and relevant coursework
Duke University
Doctor of Philosophy, Chemistry
Grade: 3.85 / 4.00
Ph.D. in Chemistry with a certificate in Biomolecular and Tissue Engineering.
Valdosta State University
Bachelor of Science, Chemistry
Grade: 3.8 / 4.0
Bachelor of Science in Chemistry, graduated Magna Cum Laude.
Tech stack
Software and tools used professionally
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
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