Calculating Filler Percentage in Powder Cleanser
Asked by: iloveclever
On: June 30, 2014
Product Type:
Cosmetics
Question
How do I calculate the amount of filler (like corn starch or talc) to add to a powder cleanser base if I want the final product to contain a specific percentage of filler? For example, if I want to add 20% filler, how do I calculate the amount needed for a given weight of powder cleanser?
Answer
Based on the example of adding 20% filler mentioned in the conversation:
- For 50g of powder cleanser, you would mix in 10g of corn starch (20% of 50g).
- For 100g of powder cleanser, you would mix in 20g of corn starch (20% of 100g).
This calculation is based on the suggestion to add 20% filler to 80% powder cleanser. The previous message also mentioned that commercial products often contain at least 20-30% filler.