Baking Soda for Dark Spots and Under-Eye Shadows: What You Should Know Before Trying It

Baking soda (sodium bicarbonate) is a popular DIY beauty ingredient, with many online claims that it can brighten dark spots, remove pigmentation, or reduce under-eye circles. However, these claims are not well supported by scientific evidence, and using baking soda on the face can sometimes do more harm than good.

Can Baking Soda Remove Dark Spots?

Baking soda is mildly abrasive and alkaline, so it may temporarily make skin feel smoother by removing some surface dead skin cells. However, it does not reliably remove true pigmentation, such as:

Age spots
Sun spots
Melasma
Post-inflammatory dark marks

Overusing abrasive products can irritate the skin, and irritation itself can sometimes make dark patches worse.

Can Baking Soda Reduce Under-Eye Shadows?

Under-eye darkness has many possible causes, including:

Genetics
Thin skin showing blood vessels underneath
Lack of sleep
Allergies
Dehydration
Natural ageing and loss of volume around the eyes

Baking soda cannot change these underlying causes and may irritate the delicate skin around the eyes.

Possible Risks of Using Baking Soda on Your Face

Because baking soda is alkaline, it can disrupt the skin’s natural protective barrier.

Possible problems include:

Dryness
Burning or stinging
Redness
Irritation
Increased sensitivity
Worsening of uneven pigmentation after inflammation

The skin around the eyes is especially delicate, so extra caution is needed.

Safer Options for Dark Spots and Uneven Skin Tone

Ingredients with better evidence include:

✅ Daily sunscreen — helps prevent dark spots from becoming worse
✅ Vitamin C — may help brighten uneven pigmentation
✅ Niacinamide — can help with some forms of discoloration
✅ Retinoids/retinol — can improve skin texture and signs of ageing
✅ Azelaic acid — may help certain types of pigmentation and redness

For persistent pigmentation, a dermatologist can recommend treatments such as prescription creams or professional procedures.