Measuring Ingredients for Cosmetic Formulation: Weight vs. Volume
Question
What is the correct method for measuring cosmetic ingredients, especially liquids and powders? Should they be measured by weight or volume, and what precision is needed for accurate formulation?
Answer
Hello,
Regarding your question about measuring ingredients for cosmetic formulation, the standard and most accurate method is to measure all ingredients, whether liquid or dry, by weight (mass), not volume.
This is because different ingredients have different densities. Measuring by weight ensures that you are using the correct proportion of each ingredient according to your formula, regardless of its physical state (liquid or powder).
As the staff mentioned, it is recommended to use a digital scale with a precision of at least 0.01g for accurate measurements.
I hope this clarifies your question!