Usage of Witch Hazel Products: Direct Spraying, Dilution, and Preservation
ถามโดย: nuchsmile
เมื่อ: September 25, 2017
ประเภทผลิตภัณฑ์:
เครื่องสำอาง
คำถาม
Regarding the products Witch Hazel (Alcohol Free) Plus Allantoin (Product ID 238) and Witch Hazel (Distilled - Alcohol Free) (Product ID 162):
- Can these products be sprayed directly onto the face?
- Is it necessary to add extra preservative if using the products undiluted?
- Can these products be diluted with Distilled Water? If so, how does dilution affect the expected results?
คำตอบ
Based on the staff's replies:
- Both Witch Hazel (Alcohol Free) Plus Allantoin (Product ID 238) and Witch Hazel (Distilled - Alcohol Free) (Product ID 162) can be sprayed directly onto the face without dilution.
- You do not need to add any extra preservative when using the products undiluted, as they already contain preservatives from the manufacturer.
- Regarding dilution with Distilled Water, the staff advises against it if you want to achieve the expected results. They recommend using the products at a high concentration instead of diluting with water.
