December 6, 2022

Reduce Time-To-Market of Solid Cosmetics Using Accelerated Stability Testing

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With current changes in consumer behavior, cosmetic products must fulfill ethical and ecological standards in the same way as quality and stability requirements. This pushes towards reformulation and development of new formulas requesting a long validation process.

In particular, developing semi-solid and solid cosmetics with a high number of waxes (creams, lipstick, ointments) is challenging. Waxes involve specific temperatures, precise preparation method, and excellent control of the cooling ramp to obtain stable emulsions and homogeneous mixtures. Moreover, the stability of such products needs longer evaluation periods, resulting in longer time-to-market.
Rheolaser Crystal enables a thermal profiling method for semi-solid formulations that allow chemists to optimize the preparation method and the formula and to rapidly evaluate the stability.

This webinar will cover the following:

  1. Comparing raw materials and selecting the right one – knowing the exact melting point of pure and mixed waxes to improve the formulation, avoid production problems, and accelerate development.
  2. Evaluate stability at each step of development – Thermal cycling allows to accelerate stability tests of highly stable and solid cosmetic products to choose only the right form.
  3. Optimize formulations for up-scaling – a validated lab formulation may face problems during up-scaling. Especially in the case of waxes, the cooling ramps have a significant impact on crystallization behavior and end-product properties.

Benefits of using Rheolaser CRYSTAL:

  • Reduce cost and time while improving performance and stability thanks to the highly sensitive Diffusing Wave Spectroscopy (DWS) method.
  • Determine thermal profiles with characteristic peaks for phase transitions (crystallization, melting, glass transitions) in a temperature range from 4°C to 90°C.
  • Apply thermal cycles to evaluate the stability of very stable samples.
  • Study representative sample volumes.

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