Sodium bicarbonate , also known as baking soda, is used to relieve heartburn, sour stomach, or acid indigestion by neutralizing excess stomach acid. When used for this purpose, it is said to belong to the group of medicines called antacids. It may be used to treat the symptoms of stomach or duodenal ulcers. Sodium bicarbonate is also used to make the blood and urine more alkaline in certain conditions.

Antacids should not be given to young children (up to 6 years of age) unless prescribed by their doctor. Since children cannot usually describe their symptoms very well, a doctor should check the child before giving this medicine. The child may have a condition that needs other treatment. If so, antacids will not help and may even cause unwanted effects or make the condition worse.

Sodium bicarbonate, also known as baking soda, is a white, crystalline solid that's often in the form of a fine powder. It has many uses in cosmetics, including: 

pH adjuster

Helps regulate the acidity or alkalinity of products, making them gentler and more compatible with the skin 

Abrasive

Can be used in face or body scrubs to exfoliate the skin and remove dead skin cells and impurities 

Deodorant

Neutralizes odors, making it an effective ingredient in deodorants, foot powders, and other personal care products 

Buffer

Can be used as a buffer in cosmetics and personal care products 

Additive

Can be used as an additive in many natural cosmetic products, such as effervescent bath sprays, exfoliating creams, shampoo, and deodorant 

Sodium bicarbonate's whiteness and solubility make it easy to include in any cosmetic application, especially for skin care and dental care.