Package Stability Testing Services
(Cosmetics, OTC, Supplements, and More)
ANALYZETESTING LABS provides comprehensive in-package stability testing services for cosmetics, personal care products, over-the-counter (OTC) drugs, dietary supplements, and other regulated products. Our stability testing programs are designed to support shelf-life determination, expiration dating, and period-after-opening (PAO) claims in accordance with international regulatory guidelines.
All stability testing is conducted in U.S.-based, ISO/IEC 17025 accredited laboratories and follows applicable requirements from ICH, FDA, USP, EP, ISO, and Health Canada. Our stability testing services help manufacturers generate reliable, defensible data to support product safety, quality, and regulatory compliance across domestic and international markets.
ANALYZETESTING LABS offers a full range of stability testing services, including long-term, intermediate, accelerated, and photostability testing based on ICH guidelines. Our programs are customized to meet product type, regulatory expectations, and market requirements.
Stability testing services include, but are not limited to:
- Active Ingredient Assays (HPLC, GC, and other analytical methods)
- Antimicrobial Effectiveness / Preservative Efficacy Testing (PET)
- Microbial Limits Testing
- Moisture and Solids
- BP, EP, JP, and USP Monograph Testing
- Color
- Odor
- Appearance
- pH
- Specific Gravity
- Viscosity
- Package Compatibility
- Hardness
- Weight Loss / Gain
- Period-After-Opening (PAO)
- Freeze / Thaw Analysis
- Ambient and Above-Ambient Testing
- Photostability
UV Exposure Studies
Our stability testing laboratories maintain a wide range of ICH-compliant storage conditions to support long-term, intermediate, accelerated, and stress testing studies.
Available storage conditions include:
- 25°C ± 2°C / 60% RH ± 5% RH
- 30°C ± 2°C / 65% RH ± 5% RH
- 30°C ± 2°C / 75% RH ± 5% RH
- 40°C ± 2°C / 75% RH ± 5% RH
- 45°C ± 2°C
- 50°C ± 2°C
- 60°C ± 2°C
- 5°C ± 2°C (Refrigerated)
- Freeze / Thaw (-10°C to -20°C)
- Ambient / Above Ambient
- UV Exposure
- Photostability per ICH Q1B (Option 2: 1.2 million lux-hours / 200 W/m²)
ANALYZETESTING LABS manages stability studies from start to finish to ensure consistency, traceability, and regulatory alignment.
Our stability testing process includes:
- Pulling samples at prescribed intervals (e.g. 3, 6, 9, 12 months, and beyond)
- Performing required physical/organoleptic, microbiological, chemistry/analytical, and other testing
- Providing best-practice guidance, detailed protocols, and official stability trending reports
While product degradation cannot be accelerated beyond scientific limits, we focus on efficient testing workflows and timely reporting following each scheduled pull point.
- Pulling samples at prescribed intervals (e.g. 3, 6, 9, 12 months, and beyond)
Designing a compliant stability testing protocol can be complex due to varying regulatory expectations across product categories and markets. ANALYZETESTING LABS provides expert guidance to support protocol design and regulatory decision-making.
Our scientific team offers consulting and recommendations based on extensive knowledge of ICH, FDA, USP, ISO, and other regulatory frameworks, ensuring your stability program generates the data needed to support quality, safety, and compliance.
Our stability testing reports are designed to be clear, visual, and easy to understand, while still meeting regulatory and technical requirements. Clients receive structured data, trend analysis, and conclusions that support confident product and regulatory decisions.
In addition to final reports, we support clients throughout the entire lifecycle of their stability studies.
At ANALYZETESTING LABS, clients receive direct access to the scientists managing their stability testing programs.
This includes:
- 1:1 interaction with stability testing scientists
- Expert consultation in the event of out-of-specification (OOS) results
- Fast, responsive communication
- Clear answers to technical and regulatory questions
- 1:1 interaction with stability testing scientists
ANALYZETESTING LABS
So The World Can Trust In What It Consumes
analyzetestinglabs partners with customers to deliver innovative scientific solutions and expertise in support of the food & beverage, cosmetic, OTC, supplements, and other regulated industries.
Why Choose ANALYZETESTING LABS for Stability Testing
With over 20 years of laboratory experience, advanced stability chambers, ISO/IEC 17025 accreditation, and regulatory-focused expertise, ANALYZETESTING LABS delivers stability testing data you can trust.
We partner with clients to support product safety, shelf-life claims, and regulatory compliance—helping ensure confident market launches and long-term product success.
