Product Evaluation

In Vitro Permeation Testing (IVPT), or skin permeation testing plays an important role to understand where drugs go in the skin for topical products

In Vitro Permeation Test (IVPT)


Neoventech is recognized for its expertise in skin permeation studies using various skin models either in vitro or ex vivo. The histology testing capability allows 2D visualization of the drug distribution in the skin tissue


Neoventech collaborates with you to characterize and deliver the drugs to the desired targets using automated IVPT instruments

  • Select actives and formulations with desired penetration properties
  • Screen and profile the distribution of active ingredients in skin and/or follicles
  • Quantify the actives penetrated through skin into the diffusion cells (receptors)
  • Benchmark the clinical or consumer study formulations to marketed products

In Vitro Release Test (IVRT)

The measurement of drug release from a given dosage form is fundamental to drug product development. For semisolid drug or therapeutic skin care products, in vitro release testing (IVRT) uncovers the combined effects of physical and chemical parameters such as solubility and particle size of the drug active ingredients (APIs) and rheological properties of the dosage form

Method Development

Neoventech provides efficient IVRT or IVPT method development and validation as well as bioequivalent testing for different dosage forms (ointment, lotion, shampoo, aerosol/foam, transdermal patch, dissolvable film, powder)

Complex Product Assessment & Testing

To demonstrate topical bioequivalence can be a very challenging task. It is dependent on the formulation technological attributes. According to recently published FDA guidelines, in vitro BE may be demonstrated by documenting the qualitative (Q1), quantitative (Q2), microstructure (Q3) and performance (Q4) equivalence. Neoventech can provide the necessary support from BE strategies, feasibility assessment to pivotal studies for a successful submission.

Q3 and Q4 Characterization Capabilities

  • Physical property characterizations
  • Microstructure & drug distribution characterization including microscopic imaging, particle/droplet size distribution, rheology profiles
  • Metamorphosis characterization
  • IVRT and IVPT – method development

In-vitro Bioequivalence (BE) with Regulatory Compliance

Formulation Stability Programs with HPLC/MS for degradant components

Contact us 

Please contact us (email: [email protected]) to discuss your projects or request a quote for us to help you.