Why is micellar water bad?

Why can a gentle cleanser cause problems?

Micellar water contains water, moisturizing ingredients and micelles, tiny clusters of cleansing molecules that lift away oil and dirt. It is a cleanser rather than a toner, despite both arriving dressed as water. Its mild cleansing agents generally remove less of your skin's natural oil than harsher cleansers, making it a useful option for dry or sensitive skin.1

Surfactants are cleansing agents, and they can affect the skin barrier, the protective outer layer of your skin. How surfactants are mixed changes their interaction with that barrier. The practical choice is a gentle formula you tolerate, not avoiding every cleanser that contains cleansing agents.35

Specific ingredients can cause contact dermatitis, an irritated or allergic skin rash. Lauryl glucoside can cause allergy or irritation, with redness, itching, swelling or blistering developing hours to days after contact. Benzalkonium chloride, used in some cleansers and makeup removers, can also cause irritation or allergy. These are ingredients to check on your own bottle, not ingredients to assume every micellar water contains. If you have a diagnosed allergy, avoid products containing that allergen.46

Should you rinse micellar water off?

Micellar water usually does not require rinsing. For example, CeraVe tells you that its Hydrating Micellar Water needs no rinse. If you have rosacea, follow the more cautious approach: rinse cleanser off thoroughly with warm water, because cleanser remaining on your skin can cause irritation. A rinse free direction is a convenience, not a reason to ignore discomfort.127

For rosacea, choose fragrance free products rather than products labelled unscented. Avoid alcohol, camphor, fragrance, glycolic acid, lactic acid, menthol, sodium lauryl sulfate and urea. Test a new product before applying it to your face. Skin affected by eczema is also more vulnerable to reactions from benzalkonium chloride, and people with a history of eczema have a higher risk of lauryl glucoside allergy.246

How to use it without scrubbing

1. 1Read your bottle's directions. Apply a small amount with your hands or a cotton pad, using gentle movements rather than repeated rubbing. If you have rosacea, use your fingertips and avoid rubbing or massaging.
2. 2For eye makeup, follow the product's eye area directions. CeraVe tells you to saturate a cotton pad, hold it over a closed eye for a few seconds, then wipe gently.
3. 3Follow with a gentle oil or water based cleanser when removing sunscreen or cosmetics. Heavy or waterproof makeup can need this additional cleansing step.
4. 4If rinsing, use lukewarm water and pat dry with a soft towel. Apply moisturizer afterwards, and sunscreen in the morning. For rosacea, let your skin dry before moisturizing; apply prescribed rosacea medication before moisturizer.

You can use micellar water in the morning, at night, or both. General face washing guidance is to wash twice daily and after heavy sweating. Extra washing and scrubbing are not substitutes for choosing a cleanser that removes what you are wearing.13

When should you stop using it?

Stop using a product that causes redness, itching, swelling, blistering, peeling or a dry, scaly rash. A reaction can appear hours or days after use, rather than during cleansing. See a dermatologist for a recurring rash or trouble finding products you tolerate. Dermatologist patch testing can identify contact allergies; symptoms alone do not tell you which ingredient caused the problem.246

Expect makeup and grime removal during cleansing, not a course of treatment. Micellar water does not treat acne or erase wrinkles, even if the bathroom shelf would prefer one bottle to cover every department.1