General Considerations

Due to the different nature of each cosmetic product, no mandatory Stability Test was established. Each manufacturer given its knowledge on the formulation and the product intended use, may draft and argue the best suited conditions to evaluate the stability of the product. The elements to be considered when drafting the protocol of a stability test:

  1. Identify the conditions that will “accelerate and predict” the effects of normal conditions of storage and use. Where relevant, consider stresses, including temperature that will enable assessment of product integrity under anticipated product exposure conditions.
  2. Consider evaluation of critical aesthetic properties such as color, fragrance, texture, and flow, particularly after exposure to conditions designed to stress each specific property.
  3. Consider variations in the process conditions.
  4. Consider the impact of the primary packaging on the formulation, as well as any effects which the product might have on the packaging.
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