Why Your Face Wash Is Making Oily Skin Worse
Most face washes for oily skin have a pH of 8–10. Your skin's natural pH is 5.5. When you wash with a high-pH cleanser, you strip the skin's acid mantle — and your skin responds by producing even more oil to compensate. This is called rebound sebum production.
What pH 5.5 Actually Does
- Removes excess oil without disrupting the acid mantle
- Prevents rebound sebum overproduction
- Maintains the skin microbiome that protects against acne-causing bacteria
- Reduces inflammation that leads to breakouts
The Science of Skin pH
The skin's acid mantle is a thin protective film with a pH of approximately 5.5. It acts as a barrier against bacteria, fungi, and environmental pollutants. Disrupting it takes 14 hours for the skin to restore. Daily disruption with alkaline cleansers leads to chronic inflammation, acne, and more oiliness.
What to Look for in a Cleanser for Oily Skin
- pH 5.5 formulation — explicitly stated on the label
- Gel texture — removes oil effectively without over-drying
- No sulphates (SLS/SLES) — primary pH disruptors
- No alcohol — strips skin and triggers rebound oiliness
Shop the Solution
The Purifying Face Cleanser (pH 5.5) is specifically formulated for oily and acne-prone skin. It removes excess oil without triggering rebound production. For a complete routine, try the Oily Skin 3-Step Combo with Hydrating Face Gel and Lip Butter.
Frequently Asked Questions
How do I know if my face wash is too alkaline?
If your skin feels tight or squeaky clean after washing, your cleanser is too alkaline. Healthy skin should feel comfortable and balanced after cleansing.
How long to see results after switching to pH 5.5?
Most people notice reduced oiliness within 2–3 weeks as the skin stops overproducing sebum.
Is pH 5.5 cleanser suitable for acne-prone skin?
Yes. Maintaining the skin's natural pH is one of the most effective ways to reduce acne-causing bacterial overgrowth.
Can I use this if I have combination skin?
Yes. pH 5.5 cleansers are ideal for combination skin as they balance both oily and dry zones without over-stripping.