Usage Rate Calculation for GLDA and TransMoist™
Asked by: wlcling
On: September 25, 2025
Product Type:
Cosmetics
Question
I have questions regarding the usage rates of two specific ingredients:
- GLDA (Tetrasodium Glutamate Diacetate, 47% Solution):
- The recommended usage rate is stated as 0.1%-0.2%.
- The SDS indicates 100%, but the product is a 47% solution.
- Does the usage rate of 0.1%-0.2% refer to the solution
as is, or do I need to adjust (e.g., double) the percentage to account for the 47% active ingredient concentration?
- TransMoist™ (PPG-24-Glycereth-24):
- What is the recommended usage rate for this product?
Answer
For GLDA (Tetrasodium Glutamate Diacetate, 47% Solution), the recommended usage rate of 0.1%-0.2% refers to the solution as is. You do not need to adjust for the 47% active ingredient concentration.
For TransMoist™ (PPG-24-Glycereth-24), the recommended usage rate is 1-10%, with 2% being a commonly suggested rate.
