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dimanche 5 juillet 2026

Baking soda on the face: benefits, risks, and how to use it safely

 

What Is Baking Soda?


Baking soda, also known as sodium bicarbonate, is a naturally occurring alkaline compound. It appears as a fine white powder and has been used for centuries in cooking, medicine, and cleaning.


Its main characteristics include:


Mild abrasive texture

Alkaline pH (around 8.3)

Odor-neutralizing ability

Antibacterial properties under certain conditions

Oil-absorbing qualities


Because of these characteristics, many people assume it can improve skin health.


However, facial skin behaves very differently from kitchen surfaces.


Understanding Your Skin's Natural Barrier


Before putting baking soda on your face, it's important to understand how healthy skin works.


The outermost layer of your skin contains a protective coating called the acid mantle.


This barrier:


Keeps moisture inside the skin

Protects against bacteria

Prevents irritation

Supports healthy skin bacteria

Helps maintain elasticity


Healthy skin typically has a pH between 4.5 and 5.5, making it slightly acidic.


Baking soda has a pH of approximately 8.3, making it significantly more alkaline.


Repeated exposure can disrupt the acid mantle, leading to numerous skin problems.


Why Do People Put Baking Soda on Their Face?


Many DIY beauty enthusiasts claim baking soda can help with:


Acne

Pimples

Blackheads

Whiteheads

Oily skin

Dark spots

Uneven texture

Dull complexion

Enlarged pores


Some people notice temporary improvements because baking soda removes oil and dead skin cells.


However, these short-term effects may come at the expense of long-term skin health.


Potential Benefits of Baking Soda for the Face


Although experts don't recommend routine use, baking soda may offer some limited benefits when used carefully.


1. Gentle Physical Exfoliation


One of baking soda's most popular uses is exfoliation.


Its fine particles help remove:


Dead skin cells

Surface dirt

Oil buildup


Exfoliation can leave the skin looking smoother and brighter immediately after use.


However, over-exfoliating can quickly damage healthy skin.


2. Temporary Oil Control


People with oily skin often notice that baking soda absorbs excess sebum.


Benefits may include:


Less shine

Cleaner-looking pores

Reduced greasy feeling


Unfortunately, removing too much oil can cause the skin to produce even more oil later.


3. May Help Remove Surface Impurities


When mixed with water, baking soda forms a mild paste that may help remove:


Dirt

Sweat

Makeup residue

Pollution particles


It should never replace a proper facial cleanser.


4. Temporary Improvement in Skin Texture


By removing dead skin cells, the face may temporarily appear:


Softer

Smoother

Brighter

Fresher


These effects are usually short-lived.


5. May Help Dry Out Individual Pimples


Some people apply baking soda only on active pimples.


The drying effect may reduce:


Excess oil

Swelling

Redness (temporarily)


However, excessive drying often worsens irritation.


Risks of Using Baking Soda on the Face


This is where the biggest concerns arise.


Dermatologists generally discourage using baking soda regularly because the risks often outweigh the benefits.


1. Damages the Skin Barrier


The skin barrier protects against environmental damage.


Frequent baking soda use may:


Strip natural oils

Damage protective lipids

Increase water loss

Make skin vulnerable


A damaged barrier often results in chronic irritation.


2. Causes Dryness


Because baking soda removes natural oils, it can leave skin feeling:


Tight

Dry

Rough

Flaky


People with naturally dry skin are especially vulnerable.


3. Skin Irritation


Common symptoms include:


Burning

Itching

Stinging

Redness

Peeling


Sensitive skin may react after just one use.


4. Disrupts Skin pH


Healthy skin depends on a slightly acidic environment.


Baking soda raises skin pH significantly.


This disruption can:


Encourage bacterial growth

Slow healing

Increase inflammation

Trigger breakouts

5. May Worsen Acne


Ironically, many people use baking soda to treat acne.


But repeated use may:


Increase irritation

Damage healing skin

Trigger more oil production

Lead to additional breakouts

6. Can Increase Sensitivity


Once the skin barrier is damaged, your face becomes more sensitive to:


Sunlight

Wind

Cold weather

Skincare products

Makeup

7. Higher Risk of Infection


Small cracks in damaged skin make it easier for bacteria to enter.


This increases the risk of:


Pimples

Skin infections

Delayed healing

Who Should Avoid Baking Soda on the Face?


Avoid using baking soda if you have:


Sensitive skin

Dry skin

Rosacea

Eczema

Psoriasis

Active acne inflammation

Open wounds

Sunburn

Recent chemical peels

Recent laser treatments


Children should also avoid facial baking soda treatments.


Can Baking Soda Help Acne?


This remains one of the most searched questions online.


The answer is:


Possibly in the very short term—but not as a long-term solution.


Why people think it works:


Dries oil

Removes dead skin

Cleans pores


Why dermatologists discourage it:


Damages skin barrier

Causes inflammation

Worsens irritation

Increases post-acne marks


Safer acne treatments include:


Salicylic acid

Benzoyl peroxide

Niacinamide

Azelaic acid

Adapalene (where appropriate)

Can Baking Soda Remove Dark Spots?


There is no scientific evidence proving baking soda fades pigmentation.


Some people believe brighter skin after exfoliation means dark spots are disappearing.


In reality:


Dead skin removal creates temporary brightness.

Pigmentation remains unchanged.


Repeated irritation may even worsen discoloration.


Can Baking Soda Shrink Pores?


No.


Pore size is largely determined by:


Genetics

Age

Skin elasticity

Oil production


Baking soda may temporarily make pores appear smaller by removing oil, but it does not permanently shrink them.


How to Use Baking Soda Safely (If You Choose to Try It)


If you still want to experiment, use extreme caution.


Step 1: Perform a Patch Test


Apply a small amount behind the ear or on the inner arm.


Wait 24 hours.


If irritation develops, do not use it on your face.


Step 2: Mix Properly


Never apply dry baking soda directly.


Mix:


1 teaspoon baking soda

2 teaspoons water


Create a smooth paste.


Step 3: Apply Gently


Use clean fingers.


Avoid:


Eyes

Lips

Broken skin


Do not scrub aggressively.


Step 4: Leave Briefly


Keep on skin for 30 seconds to 1 minute only.


Longer exposure increases irritation.


Step 5: Rinse Thoroughly


Use lukewarm water.


Avoid hot water.


Pat dry with a soft towel.


Step 6: Moisturize Immediately


Use a gentle moisturizer to help restore the skin barrier.


Look for ingredients like:


Ceramides

Glycerin

Hyaluronic acid

Squalane

How Often Can You Use It?


Experts generally recommend not using baking soda as part of a regular facial skincare routine.


If someone still chooses to use it despite the risks, it should be very infrequently—certainly not every day and not several times a week. Frequent use greatly increases the chance of damaging the skin barrier.


Signs You Should Stop Using Baking Soda


Discontinue immediately if you experience:


Burning

Redness

Peeling

Severe dryness

Rash

Swelling

Pain

Increased acne

Cracked skin


If symptoms persist, consult a dermatologist.


Better Alternatives to Baking Soda


Modern skincare offers safer and more effective ingredients.


For Exfoliation


Choose products containing:


Lactic acid

Mandelic acid

Glycolic acid

Polyhydroxy acids (PHAs)


These provide controlled exfoliation with less risk than harsh DIY scrubs.


For Oily Skin


Look for:


Niacinamide

Salicylic acid

Clay masks

Zinc PCA


These ingredients help control oil without disrupting the skin barrier.


For Acne


Effective options include:


Salicylic acid

Benzoyl peroxide

Adapalene

Azelaic acid


These have been studied extensively and are supported by clinical evidence.


For Brightening


Instead of baking soda, consider:


Vitamin C

Niacinamide

Alpha arbutin

Licorice root extract

Tranexamic acid (where appropriate)


These ingredients can improve uneven skin tone over time when used consistently.


Common Myths About Baking Soda for Skin

Myth 1: Natural Means Safe


Not all natural ingredients are suitable for facial skin.


Myth 2: Baking Soda Permanently Removes Acne


It may temporarily dry pimples, but it does not treat the underlying causes of acne.


Myth 3: It Whitens Skin


Baking soda does not change your natural skin color. It may only remove dull surface cells, making the skin appear brighter for a short time.


Myth 4: More Scrubbing Gives Better Results


Excessive scrubbing can cause microtears, irritation, and inflammation.


Myth 5: Everyone Can Use It


Skin types vary greatly. What seems harmless for one person may trigger severe irritation in another.


Frequently Asked Questions

Can I leave baking soda on my face overnight?


No. Leaving it on overnight significantly increases the risk of dryness, irritation, and skin barrier damage.


Can I mix baking soda with lemon juice?


This combination is not recommended. Lemon juice is highly acidic and can irritate the skin, especially when paired with an abrasive ingredient like baking soda.


Can baking soda remove blackheads?


It may remove some surface debris, but it does not effectively eliminate blackheads. Ingredients such as salicylic acid are much better suited for this purpose.


Is baking soda good for sensitive skin?


No. Sensitive skin is especially prone to irritation from baking soda.


Can teenagers use baking soda for acne?


It is better for teenagers to use gentle, evidence-based acne treatments rather than DIY remedies that may damage the skin.

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