Purpose and Importance

In-vitro Release Testing (IVRT) and In-vitro Permeation Testing (IVPT) are critical tools for evaluating the performance of topical and transdermal drug products. These studies simulate how a formulation releases and delivers the active ingredient through the skin, helping to assess bioavailability, product equivalence, and formulation stability.

Both IVRT and IVPT are essential for regulatory submissions, formulation optimization, and quality assurance, ensuring that every batch performs consistently in therapeutic use.

Our Testing Capabilities

Accuprec Research Labs provides end-to-end IVRT and IVPT services under GLP and regulatory-compliant conditions. Our laboratories are equipped with state-of-the-art diffusion systems, validated methodologies, and trained professionals experienced in dermal testing.

• IVRT Studies: Conducted using vertical diffusion cells (Franz cells) to measure drug release profiles from semi-solid formulations such as creams, gels, and ointments.
• IVPT Studies: Permeation evaluation using human or animal skin models to determine drug absorption and flux rates.
• Membrane & Receptor Phase Optimization: Selection and validation of suitable membranes and receptor media based on formulation type and API solubility.
• Method Development & Validation: Analytical support using HPLC, LC-MS, and spectrophotometric methods.
• Comparative Performance Testing: Assessment of test vs. reference formulations for bioequivalence determination.

Our Approach

We follow regulatory expectations outlined by the USFDA SUPAC-SS, EMA, and OECD guidelines for in-vitro testing of topical products. Each study is customized to the specific formulation, with defined parameters for sampling intervals, receptor media, and analytical endpoints. All results are statistically evaluated for precision, reproducibility, and regulatory acceptance.

Why Choose Accuprec

• Advanced Franz Diffusion Systems: Equipped with precise temperature and stirring control.
• Experienced Analytical Team: Specialized in topical formulation testing and validation.
• Comprehensive Data Reporting: Regulatory-ready reports suitable for global submissions.
• End-to-End Support: From formulation evaluation to statistical data interpretation.

Outcome

Accuprec’s IVRT and IVPT services help pharmaceutical developers demonstrate batch-to-batch consistency, product equivalence, and optimal drug delivery performance. With precise analytical validation and compliance with global standards, we enable faster regulatory approvals and reliable market readiness.