Water-in-Oil Emulsion Separation Issue with Water-in-Oil EZ

ถามโดย: seeluw เมื่อ: June 18, 2016 ประเภทผลิตภัณฑ์: เครื่องสำอาง

คำถาม

I am trying to create a Water-in-Oil emulsion using Water-in-Oil EZ emulsifier with the following ingredients: Vitamin B6, Zinc PCA, L-Carnitine, Glycerin, Water (water phase) and Mineral oil (oil phase). I mixed the water-soluble ingredients in water first, then added the oil and emulsifier. The mixture separated. What is the correct method to prevent separation?

คำตอบ

It looks like you are trying to create a Water-in-Oil (W/O) emulsion. In a W/O emulsion, the water phase is dispersed within the oil phase, stabilized by a W/O emulsifier.

Your formulation has a water phase (Vitamin B6, Zinc PCA, L-Carnitine, Glycerin, Water) and an oil phase (Mineral oil). The "Water in Oil" ingredient is the emulsifier.

The typical method for creating a W/O emulsion is to combine the oil phase and the W/O emulsifier first, and then slowly add the water phase into the oil phase while mixing continuously and vigorously.

Your current method involves mixing the water-soluble ingredients in water first, and then adding the oil and emulsifier. This method is generally used for Oil-in-Water (O/W) emulsions, where the oil phase is added into the water phase containing an O/W emulsifier.

Attempting to create a W/O emulsion by adding the oil phase and W/O emulsifier into the water phase will likely result in separation because the external phase (oil) is not continuous and cannot properly encapsulate the internal phase (water).

To fix the separation issue, please try the correct method for W/O emulsions:

  1. Combine the Mineral oil (oil phase) and Water in Oil emulsifier. Mix well.
  2. In a separate container, mix Vitamin B6, Zinc PCA, L-Carnitine, and Glycerin with Water until fully dissolved (water phase).
  3. Slowly add the water phase from step 2 into the oil phase + emulsifier mixture from step 1, while mixing continuously and vigorously. You may need to use a high-speed mixer or homogenizer for best results.

It is crucial to follow the specific instructions for the "Water-in-Oil EZ" emulsifier, as recommended by the staff. Please check the product page for detailed usage guidelines, including recommended mixing speed and temperature if applicable.

ผลิตภัณฑ์ที่เกี่ยวข้องที่กล่าวถึง

L-Carnitine (Carnitine)
L-Carnitine (Carnitine)
เครื่องสำอาง
Vitamin B6 (Pyridoxine Hydrochloride)
Vitamin B6 (Pyridoxine Hydrochloride)
เครื่องสำอาง
Mineral Oil (Paraffinum Liquidum) Light (26cst)
Mineral Oil (Paraffinum Liquidum) Light (26cst)
เครื่องสำอาง
Water-in-Oil EZ™ (Cetyl PEG/PPG-10/1 Dimethicone)
Water-in-Oil EZ™ (Cetyl PEG/PPG-10/1 Dimethicone)
เครื่องสำอาง
Purified Water, TDS Limit 1PPM)
Purified Water, TDS Limit 1PPM)
เครื่องสำอาง