Cosmetic Formulation Questions

Here are answers to your questions about cosmetic formulation:

Measuring Powder Ingredients

It is highly recommended to use a precise scale when measuring powder ingredients for cosmetic formulations. This is because the density of powders can vary significantly, meaning that using volume measurements (like spoons) will not be accurate. For potent ingredients or small batch sizes, even slight inaccuracies can lead to formulations that are ineffective or potentially irritating. Ingredients like preservatives or AHA are examples where precise measurement is crucial.

Azelaic Acid and Preservatives

Yes, if you are formulating with Azelaic Acid (specifically the water-soluble form like Liquid Azelaic™) in a water-based product (gel, cream, serum, lotion), you must include a preservative. Preservatives are essential to prevent microbial growth and ensure the safety and stability of the product over time. Examples of preservatives include Mild Preserved Eco™ or Thyme Care™.

Gel vs. Cream Base for Azelaic Acid

Neither a gel nor a cream base is inherently "better" for Azelaic Acid. The choice between a gel or cream depends on your skin type and desired product texture. Azelaic Acid (Liquid Azelaic™) can be effectively incorporated into various bases, including gels, serums, lotions, or creams. Choose the base that best suits your personal preference and skin needs.