From the occasional pimple to severe, persistent breakouts, acne can be a serious issue that affects both your appearance and your self-confidence.
If you’ve searched online for information about home remedies for acne, you might have seen baking soda, or sodium bicarbonate, mentioned alongside other popular natural treatments.
While baking soda does have some medicinal effects — for example, it’s a natural antacid that’s quite helpful for treating heartburn — there’s currently no scientific evidence that it can get rid of acne, prevent breakouts or do anything else to improve your skin.
In fact, many healthcare professionals advise against using baking soda for skin care due to its tendency to dry out your skin and affect its protective barrier.
Below, we’ve dug into the science behind acne breakouts and baking soda to help you find out more about this popular cooking ingredient’s skin care effects.
We’ve also explained what you can do if you’re prone to acne breakouts and want to get rid of your pimples and prevent them from coming back.
Acne develops when your hair follicles, or pores, become blocked from a combination of sebum and dead skin cells.
Sebum is a type of oil that’s produced by your skin. It’s secreted by your sebaceous glands and plays a major role in lubricating your skin and maintaining its protective barrier against damage from the environment, bacteria, viruses and fungi.
Your skin releases sebum via the hair canal. Although a certain amount of sebum is important for maintaining your skin, when your skin produces too much sebum, the extra oil can become trapped inside the hair follicle, causing a blockage.
In addition to sebum, your skin is constantly producing new cells through a process referred to as epidermal turnover.
To keep your skin strong and healthy, new cells are created in the basal layers of your skin to replace old ones. Over the course of 40 to 56 days, these cells travel from the basal layers of your skin to the epidermis, replacing old, worn out skin cells in the process.
Over time, the dead skin cells left behind by your body’s epidermal turnover process can build up on the surface of your skin and contribute to blocked hair follicles.
A variety of different factors play a role in this process, including your genetics and your body’s production of certain sex hormones. We’ve talked about these more in our guide to the causes of acne.
Finally, bacteria, which constantly grows on your skin, can become trapped inside blocked hair follicles. When this happens, acne can worsen from non-inflamed comedones to red, inflamed and painful papules, pustules and nodular or cystic acne.
Because acne is all about sebum, dead skin cells and bacteria, most treatments for acne work in one of four ways:
Most topical acne treatments work by washing away sebum and/or dead skin cells. Antibiotics, such as clindamycin, work by killing the bacteria that can grow inside acne lesions and cause them to become inflamed and painful.
Some oral medications, such as the birth control pill, work by reducing your production of sex hormones that regulate sebum production.
Right now, there’s no scientific research showing that sodium bicarbonate, or baking soda, is an effective treatment for acne.
There’s also no scientific research showing that baking soda controls sebum, dead skin cells or any of the other factors that can contribute to blocked hair follicles.
Although some studies have found that baking soda may possess mild antibacterial effects, the research that’s available now isn’t very comprehensive, with no studies that look specifically at the effects of baking soda on bacterial growth on the skin.
In short, right now there isn’t any scientific evidence to show that baking soda has any effect on acne breakouts.
To put these numbers in perspective, any substance with a pH of zero to six is acidic, while a pH in the eight to 14 range indicates that a substance is alkaline.
For example, a powerful acid like battery acid or hydrochloric acid has a pH of zero, while a strong alkaline substance such as liquid drain cleaner has a pH of 14. Your blood has a neutral pH of 7.4, respectively.
While the idea that your skin is slightly acidic might sound strange, your skin’s acidity plays an important role in its job as a protective barrier against bacteria and other potentially dangerous microorganisms.
By applying baking soda to your skin, you may raise your skin’s average pH and cause issues such as dryness, inflammation and increased sensitivity. Increasing your skin’s pH in this way may also increase your risk of developing acne.
Because of these risks, it’s best not to apply baking soda or at-home treatments that are made with baking soda to your skin.
Although there’s no evidence that baking soda treats acne, several science-based products and medications are proven to get rid of acne lesions and prevent breakouts.
Some of these treatments are available over the counter from your local drugstore, while others are only available with a prescription.
Mild to moderate acne can often be treated using over-the-counter products such as cleansers and non-prescription medications. Options include:
If you have moderate to severe acne, or if over-the-counter acne treatments don’t produce the results you’d like, you may need to use prescription medication to get your acne under control and prevent new breakouts from occurring in the future.
Several science-based prescription medications are available to treat acne. Options include:
Although baking soda can be helpful for treating heartburn or removing plaque from your teeth, there’s no evidence that it treats or prevents acne.
In fact, because baking soda is slightly alkaline, applying it to your skin could affect your skin’s pH and cause issues such as dryness and irritation.
If you have acne, you’ll get significantly better results from science-based medications than you will from baking soda. You can get started by talking to a licensed healthcare provider online to learn more about the best options for treating acne and keeping your skin healthy.