You’ve probably seen videos promising that a simple kitchen ingredient like baking soda can eliminate blemishes, brighten dull skin, and give it a smooth, glass-like appearance—all in a single use. The promise of a natural and affordable solution to common skin problems is initially tempting. However, many people who try it later complain of tight, red, or even more irritated skin than before. The main problem usually lies in the alkaline nature of baking soda, which counteracts the skin’s naturally acidic protective layer. If, despite the warnings, you’re still considering trying this popular DIY remedy, it’s crucial to fully understand the situation and explore gentler alternatives.
What exactly is baking soda, and why has it become a skincare trend?
Baking soda, also known as sodium bicarbonate, is a white crystalline powder with a pH of around 9, making it decidedly alkaline. In cooking, it acts as a leavening agent, but online it has gained popularity as an inexpensive facial exfoliant and oil absorber. Users claim it gently exfoliates dead skin cells, helps control excess sebum, and can soothe minor irritations thanks to its mild antibacterial properties, which have been found in some previous studies.
Its appeal is easy to understand. It’s available in virtually every pantry, is very cheap, and seems to produce visible results in carefully edited before-and-after videos. However, this trend often overlooks the differences between facial skin and that of other areas of the body, and how its delicate balance can easily be disrupted.
Hidden Risks: Why Most Dermatologists Advise Caution:
The skin maintains a slightly acidic pH, between 4.5 and 5.5. This acid mantle supports the skin barrier, helps retain moisture, maintains a balance of beneficial microbes, and protects against environmental stressors. The high pH of baking soda can temporarily increase the acidity level, weakening the barrier over time.
The grainy texture also acts as a physical exfoliant. While gentle exfoliation can be beneficial, the particles are irregular and can create micro-tears on the surface, especially with repeated rubbing. This combination often leads to dryness, tightness, increased sensitivity, redness, and, in some cases, worsening breakouts, as the compromised skin barrier struggles to protect itself.
Research and expert opinions from sources like Healthline and professional dermatologists consistently highlight these concerns. A 2024 review published in Integrative Dermatology noted the potential uses of baking soda in controlled medical settings, but also documented cases of irritation and other side effects due to improper or excessive topical use. The general advice for applying baking soda to the face at home remains caution or avoidance, especially for those with sensitive, reactive, or damaged skin.
But that’s not the whole story. Some people with very resistant, non-sensitive skin report temporary oil control or a smoother texture after occasional use. The main difference usually lies in the extremely diluted application, short contact time, and immediate repair of the skin barrier afterward. Even then, results vary greatly, and long-term safety data for regular facial use are limited.
Claimed Benefits Compared to What Actually Happened
Here is a clear comparison between the most common claims and the most realistic results supported by current knowledge:
