Posts claiming that baking soda can fade even the darkest spots are usually overstating the evidence.
What baking soda can do
Baking soda (sodium bicarbonate) is mildly abrasive, so it can exfoliate the surface of the skin. Some people use it in DIY skincare, hoping to reduce the appearance of dark spots.
Why it’s not generally recommended
- It can irritate the skin.
- It has a high pH, which can disrupt the skin’s natural protective barrier.
- Irritation can actually make post-inflammatory hyperpigmentation (dark spots) worse, especially in people with darker skin tones.
Better-supported options for dark spots
Depending on the cause, dermatologists often recommend ingredients such as:
- Sunscreen (daily use is crucial)
- Vitamin C
- Niacinamide
- Azelaic acid
- Retinoids
- Hydroquinone (in some countries, under medical guidance)
When to get a spot checked
If a dark spot is:
- New and changing rapidly
- Irregular in shape or color
- Bleeding, itching, or not healing
it’s important to have it evaluated by a healthcare professional rather than treating it as ordinary pigmentation.
So the claim that baking soda can reliably remove “even the darkest spots” isn’t supported by strong evidence, and for many people it may cause more irritation than benefit.
