Baking Soda on the Face: What Science Says About Its Benefits and Risks

What Science Says About Baking Soda and the Skin

Baking soda has a pH of approximately 9, making it highly alkaline. Human skin, on the other hand, has a naturally acidic pH of around 4.5 to 5.5. This “acid mantle” acts as a protective barrier that helps fight bacteria, regulate sebum production, and maintain skin hydration.

Applying baking soda to the face disrupts this delicate balance, weakening the skin barrier and making the skin more

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