Comparison of Vitamin C Serums: Stability, pH, and Texture
Asked by: maigonix
On: September 17, 2017
Product Type:
Cosmetics
Question
I have questions regarding two Vitamin C products, Natural C Glycol and CE Ferulic.
1. Which of the two testers (Natural C Glycol or CE Ferulic) has a lower degradation rate when stored in a cool place?
2. What is the pH of CE Ferulic? My skin cannot tolerate very low acid.
3. The texture of Natural C Glycol is quite oily/greasy, and it takes almost an hour for my skin to feel comfortable before I can apply other products. Is the texture of CE Ferulic lighter or heavier?
Answer
Hello, based on your questions and the staff's replies, here is a summary of the answers to your additional questions:
- Degradation rate when stored in a cool place: The staff does not have specific comparative data between Natural C Glycol and CE Ferulic. However, they confirm that both formulas are highly stable and have a shelf life of at least 2 years when stored in a cool place.
- pH of CE Ferulic: The pH of CE Ferulic is approximately 3.0-3.5.
- Texture: Based on feedback from several customers, the staff indicates that Vitamin C E Ferulic (likely the same formula as the CE Ferulic you asked about) has a stickier texture than Natural C Glycol.
Hope this information helps you decide which product to choose.
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