Micellar water is a popular cleansing product that contains micelles, which are tiny oil molecules suspended in water. These micelles attract and trap dirt, oil, and makeup from the skin, making it an effective and gentle cleanser.

If your micellar water is separating, it means that the oil and water components are not properly mixed or emulsified. This can happen due to a few reasons:

1. Formulation issues: Micellar water formulations typically contain surfactants, which help to stabilize the mixture by reducing surface tension between the oil and water phases. If the formulation is not properly balanced or the surfactants are not adequately dispersed, it can lead to separation.

2. Temperature changes: Micellar water can separate if it is exposed to extreme temperature changes. For example, if it is stored in a very cold environment or exposed to heat, the oil and water components may separate.

3. Storage conditions: Micellar water should be stored in a cool, dry place away from direct sunlight. If it is stored in a humid environment or exposed to sunlight, it can affect the stability of the formulation and lead to separation.

To address the issue of separation, you can try the following:

1. Shake well before use: Before using your micellar water, shake the bottle well to ensure that the oil and water components are properly mixed.

2. Store properly: Make sure to store your micellar water in a cool, dry place away from direct sunlight. Avoid storing it in the bathroom where it can be exposed to humidity and temperature fluctuations.

3. Check the expiration date: Expired micellar water can also separate. Check the expiration date on the packaging and discard it if it has expired.

If the separation issue persists or if you have concerns about the quality of your micellar water, it is best to contact the manufacturer or consult with a skincare professional for further guidance.