Questions about Vit C E Ferulic Kit and Digital pH Meter Cleaning
Asked by: monrada16
On: December 19, 2014
Product Type:
Cosmetics
Question
I have two questions:
Regarding the Vit C E Ferulic kit:
- What is the shelf life after mixing? Can it last 1-2 years, as I plan to take it abroad?
- Can I add other extracts, totaling about 1-2% (e.g., soybean extract, green tea extract)?
- Can I add rosehip oil? If so, at what percentage?
- If I add these extracts/oils, will the properties of the kit remain the same?
Regarding the Digital pH Meter (590 baht model):
- How should I clean it after testing lotion or cream? Cleaning with just water doesn't seem sufficient to remove the residue inside.
Answer
I have reviewed the conversation you provided regarding the Vit C E Ferulic kit questions (shelf life, adding extracts/oils) and the Digital pH Meter cleaning instructions. I see your original questions and the staff's detailed responses to each point.