About Rx Life Sciences

Built by Quality Professionals, for Quality Organizations

Rx Life Sciences Staffing Consultants was founded on a straightforward premise: the best quality consulting and staffing comes from people who have lived the work — not just advised on it.

Specialized Talent in Life Sciences
Quality and Compliance Focused
Trusted by Employers and Professionals
Staffing Solutions while Advancing better Health Outcomes
Our Story

About Rx Life Sciences

RX Life Sciences Staffing Consultants was founded by Mosio McCullough, Principal Consultant, a seasoned quality professional with extensive experience supporting pharmaceutical and life sciences organizations in regulated environments. Mosio’s background spans Quality Systems, compliance, auditing, inspection readiness, documentation management, CAPA, training, batch record review, and continuous improvement. She has strengthened regulated operations, optimized quality processes, and helped organizations maintain a consistent state of regulatory readiness. She launched RX Life Sciences with a clear mission: to deliver experienced quality expertise and specialized life sciences talent exactly when organizations need it. Today, RX Life Sciences operates as a boutique consultancy providing Quality, Compliance, Operational Excellence, and Talent Solutions tailored to the needs of pharmaceutical, biotechnology, and life sciences organizations.

THE PRINCIPLE CONSULTANT

Mosio McCullough Founder & Principal Consultant | RX Life Sciences Mosio brings extensive experience in pharmaceutical quality and regulated operations, with expertise spanning Quality Management Systems, GxP compliance, auditing, inspection readiness, CAPA, document management, training, process improvement, and quality operations. Her approach blends regulatory rigor with practical operational insight—enabling organizations to identify gaps, strengthen systems, prepare their teams, and build sustainable, inspection‑ready quality practices. Through RX Life Sciences, Mosio also connects organizations with qualified life sciences professionals who can support critical quality, compliance, and operational functions. Quality. Compliance. People. Performance.

Rx Life Sciences quality professionals collaborating

QUALITY & COMPLIANCE EXPERTISE

Practical experience in regulated life sciences environments informs our approach to quality systems, compliance, documentation, inspection readiness, and continuous improvement.

REGULATORY KNOWLEDGE

RX Life Sciences supports organizations navigating GxP requirements and evolving regulatory expectations through practical, risk-based quality solutions.

RESPONSIVENESS & PRACTICAL SOLUTIONS

Compliance timelines do not wait. We move quickly without sacrificing the rigor that quality work demands.Quality and compliance challenges require timely action. We provide focused support designed around each organization's specific needs, priorities, and regulatory environment.

PARTNERSHIP-DRIVEN APPROACH

We measure success by outcomes — inspection results, remediation timelines, and the performance of the professionals we place.We believe effective consulting begins with understanding the client. Our goal is to build trusted relationships while delivering solutions that strengthen quality, compliance, and operational performance.

Industry Coverage

Areas of Expertise

Drug Substance & Drug Product Manufacturing
Biologics & Biosimilars
Combination Products
Medical Devices (ISO 13485)
Clinical-Stage Organizations
Commercial Manufacturing
CDMOs & CMOs
Biotech Startups

Work With a Team That Knows Quality

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