Stability testing services cosmetics, Stability studies cosmetics, Cosmetic product stability test, storage conditions cosmetics, cosmetic testing services

Stability studies for cosmetics

To test aesthetics, functionality, microbial quality and package compatibility, products must undergo stability testing.

QACS Stability studies provide tailored conditions of temperature and humidity of intended transport, storage and specific conditions that concern stability, compatibility and storage. Testing on raw materials, new formulations, final products and new packaging complies with GMP requirements.

Stability testing services concern Cosmetic / Personal care product development, Reformulation of remarketed products, Modification of production methods, Manufacturing site shift, Alteration of container type or material.

  • Package Compatibility
  • Storage Only
  • Shelf life
  • PAO-Period After Opening
  • Functionality & Aesthetics
  • Sensorial properties-Appearance, color, odor, texture
  • Viscocity, color, odor/fragrance, pH, weight, ingredients, UV filters, heavy metals, assay of preservatives
  • Microbial count & preservation efficacy test
  • Real-Time
  • Accelerated
  • Freeze-thaw cycles
  • Thermal stability
  • Photostability ICH Q1B
  • Light
  • 5°C
  • Custom time intervals, custom humidity, custom temperature according to stability project needs
  • 25°C / 60% RH
  • 40°C / 75% RH
  • 35 °C / 75% RH
  • 30°C / 65% RH


  • ICH Topic Q–Stability Testing of new Drug Substances and Products
  • Regulation (EC) No 1223/2009, Guidelines on Stability Testing of Cosmetics – Colipa-CTFA 2004
  • Fundamentals of Stability Testing (IFSCC Monograph No.2)

For cosmetic Stability testing services  contact us  – [email protected]  – +30 210 29 34745