Baking Soda for Dark Spots and Under-Eye Shadows: What You Should Know Before Trying It
Baking soda (sodium bicarbonate) is a common household ingredient that is sometimes promoted online as a “natural” remedy for dark spots, uneven skin tone, and under-eye circles. However, before applying it to your skin, it is important to understand what it can—and cannot—do.
Can Baking Soda Remove Dark Spots?
There is limited scientific evidence that baking soda can fade dark spots or treat hyperpigmentation.
Baking soda is mildly abrasive and alkaline, so it may:
- Remove some surface dead skin cells
- Temporarily make skin feel smoother
However, it does not target the pigment (melanin) responsible for most dark spots. Overuse can actually make discoloration worse by irritating the skin.
Can Baking Soda Reduce Under-Eye Shadows?
Under-eye darkness can have many causes, including:
- Genetics
- Thin skin under the eyes
- Natural hollowness or shadows
- Lack of sleep
- Allergies
- Dehydration
- Increased pigmentation
- Blood vessels showing through the skin
Baking soda cannot correct these underlying causes. The delicate skin around the eyes is especially vulnerable to irritation.
Why Baking Soda May Be Risky for Facial Skin
1. It Can Disrupt the Skin Barrier
Healthy skin has a slightly acidic surface called the acid mantle. Baking soda is alkaline and may disturb this balance.
Possible results:
- Dryness
- Tightness
- Burning
- Increased sensitivity
2. It May Cause Irritation and Darkening
Skin irritation can trigger inflammation, which may lead to post-inflammatory hyperpigmentation, especially in people with darker skin tones.
A treatment meant to fade spots could potentially make them more noticeable.
3. It Can Be Too Abrasive
Scrubbing with baking soda may create tiny amounts of irritation or damage, particularly on delicate areas such as:
- Under the eyes
- Around the mouth
- Sensitive skin areas
