Senior R&D Chemist - Personal Care Formulations & Scale-Up

Cosway Company - Carson CA; Carson (CA); On-site; USD 95,000 - 130,000; Full time

Job summary

Cosway Company in Carson, CA seeks an R&D Senior Chemist to independently develop, optimize, and scale personal care formulations while ensuring quality, safety, cost, regulatory, and manufacturing requirements are met. The role oversees documentation, lab testing, samples, and scale-up, and mentors junior staff.

You will work closely with customers, suppliers, and Production, proactively identifying issues and staying current with new ingredients, technologies, and industry trends to drive

Qualifications

• 8+ years of personal care product development experience, including haircare, skincare, OTC, or related products.
• Strong formulation, critical-thinking, problem-solving, organizational, and communication skills.
• Proficient with computers, laboratory equipment, and technical documentation.
• Ability to work independently, manage multiple projects, and meet deadlines.
• Innovative mindset with strong attention to detail.

Responsibilities

• Independently develop, optimize, and scale personal care formulations to meet product, cost, stability, safety, microbiological, regulatory, and manufacturing requirements.
• Prepare required technical documentation, including batch cards, production procedures, specifications, INCI lists, C of A’s, Proteus entries, and other R&D documentation.
• Conduct lab batches, stability testing, reformulation, and product evaluations; coordinate customer samples and revisions.
• Select raw materials based on performance, cost, availability, and regulatory requirements.
• Support and supervise production scale-up and initial manufacturing batches.
• Identify and resolve formulation, stability, microbiological, and manufacturing issues in a timely manner.
• Maintain accurate laboratory and development records and meet project timelines.
• Supervise and mentor chemists and technicians as needed.
• Communicate effectively with customers, suppliers, Production, and R&D personnel.
• Stay current with new ingredients, technologies, regulations, and industry trends.

Skills

Personal care development

Formulation optimization

Regulatory compliance

Laboratory testing

Mentoring/leadership

Tools

Laboratory equipment

Proteus entries

Job description

Cosway Company in Carson, CA seeks an R&D Senior Chemist to independently develop, optimize, and scale personal care formulations while ensuring quality, safety, cost, regulatory, and manufacturing requirements are met. The role oversees documentation, lab testing, samples, and scale-up, and mentors junior staff.

You will work closely with customers, suppliers, and Production, proactively identifying issues and staying current with new ingredients, technologies, and industry trends to drive