Baking soda is a common household ingredient that has become a popular topic in DIY skincare. Social media is filled with claims that it can brighten the complexion, reduce dark spots, smooth wrinkles, and even help with acne.
But does it really work?
The truth is more complicated. While baking soda can act as a mild physical exfoliant, it is not designed for facial skincare. Because it has an alkaline pH, it may disrupt the skin’s natural protective barrier and increase the risk of dryness and irritation.
In this article, we’ll explore what baking soda actually does, its potential benefits and risks, safer ways to exfoliate, and what dermatologists generally recommend.
What Is Baking Soda?
Baking soda, also known as sodium bicarbonate, is a fine white powder commonly used in:
- Baking
- Cleaning
- Odor control
Its pH is approximately 8–9, making it significantly more alkaline than healthy skin, which normally has a slightly acidic pH of about 4.5–5.5.
Maintaining this acidic skin barrier is important for protecting against irritation, moisture loss, and harmful microorganisms.
What Does Baking Soda Actually Do to the Skin?
When mixed with water, baking soda forms a gentle abrasive paste.
It may temporarily:
- Remove surface dead skin cells
- Leave the skin feeling smoother
- Reduce the appearance of surface oil
- Create the impression of a brighter complexion immediately after use
However, baking soda does not:
- Stimulate collagen production
- Remove wrinkles
- Fade dark spots permanently
- Change melanin production
- Treat acne
Its effects are largely superficial and temporary.
Potential Benefits
Some people report that occasional use provides:
Gentle Surface Exfoliation
The fine particles may help remove dead skin cells from the outermost layer of the skin.
A Temporary Smoother Texture
Fresh exfoliation can make skin feel softer for a short period.
A Clean Feeling
Some users enjoy the fresh sensation after rinsing away excess oil and debris.
Affordable and Easily Available
Baking soda is inexpensive and widely available in grocery stores.
Potential Risks
Despite its popularity, dermatologists often advise caution.
Regular facial use may lead to:
- Dryness
- Tightness
- Redness
- Burning
- Irritation
- Increased sensitivity
- Damage to the skin barrier
Because baking soda is alkaline, repeated use may disturb the skin’s natural acid mantle, making the skin more vulnerable to irritation and moisture loss.
Who Should Avoid Using Baking Soda on the Face?
Avoid using baking soda if you have:
- Sensitive skin
- Rosacea
- Eczema
- Psoriasis
- Active acne lesions
- Broken or irritated skin
- Recent cosmetic procedures
These conditions increase the likelihood of irritation.
How to Patch Test First
If you still choose to try baking soda, perform a patch test first.
- Prepare a small amount of the mixture.
- Apply it to the inside of your forearm.
- Wait 24 hours.
- Watch for redness, itching, swelling, or burning.
If irritation develops, do not apply it to your face.
A Mild DIY Baking Soda Paste
If you decide to experiment, use it sparingly.
Ingredients
- 1 teaspoon baking soda
- 2–3 teaspoons water
Optional:
- A gentle moisturizer instead of water
Instructions
- Mix into a smooth paste.
- Wash your face with a mild cleanser.
- Apply using very light circular motions.
- Avoid the eye area and lips.
- Massage for no longer than 1 minute.
- Rinse thoroughly with lukewarm water.
- Pat dry.
- Immediately apply moisturizer.
If used during the day, follow with sunscreen.
Use no more than once a week, if at all.
Baking Soda and Honey
Some people mix baking soda with honey to reduce dryness.
Ingredients
- 1 teaspoon baking soda
- 1 tablespoon raw honey
Honey acts as a humectant, helping attract moisture to the skin.
Although this mixture may feel gentler, baking soda still carries the same potential risks.
Baking Soda and Coconut Oil
Another common DIY recipe combines:
- 1 teaspoon baking soda
- 1 teaspoon virgin coconut oil
While coconut oil may reduce dryness, it can clog pores in people with acne-prone skin.
Better Alternatives Recommended by Dermatologists
Instead of baking soda, many skincare professionals recommend gentle chemical exfoliants.
Alpha Hydroxy Acids (AHAs)
Examples include:
- Glycolic acid
- Lactic acid
AHAs help dissolve dead skin cells while improving skin texture.
Beta Hydroxy Acid (BHA)
Salicylic acid is particularly helpful for oily and acne-prone skin because it penetrates into pores.
Polyhydroxy Acids (PHAs)
PHAs provide gentle exfoliation and are often better tolerated by sensitive skin.
Baking Soda vs. Dermatologist-Recommended Exfoliants
| Feature | Baking Soda | AHAs/BHAs |
|---|---|---|
| Cost | Very low | Moderate |
| Type | Physical exfoliation | Chemical exfoliation |
| Skin barrier support | Poor | Better when used correctly |
| Scientific evidence | Limited | Strong |
| Irritation risk | High with repeated use | Lower when appropriately selected |
Frequently Asked Questions
Can baking soda permanently remove dark spots?
No. There is no strong scientific evidence that baking soda permanently fades hyperpigmentation.
Temporary brightness may result from surface exfoliation.
