Benzoyl peroxide: Benefits, uses and side effects for skin
Learn the basics about benzoyl peroxide and managing acne with this key skin care ingredient.
For help managing acne, benzoyl peroxide may be an effective treatment option. Let's dive into what you need to know about this powerful ingredient.
En este artículo:
What is benzoyl peroxide and what does it do?
Available both over the counter and through prescription, benzoyl peroxide is a topical medication that helps to improve the appearance of acne on the skin.1 It can also come in combination with other acne-managing ingredients.2
Once absorbed by the skin, benzoyl peroxide essentially kills certain acne-causing bacteria.3 Applying a topical solution with 10% benzoyl peroxide for two weeks can reduce one kind of bacteria by 98%.4
Benzoyl peroxide is the active ingredient in a variety of products. Look for it in products like face washes y gels. Some benzoyl peroxide products, especially those that contain antibiotics or retinoids, are only available through prescription. For information on using over-the-counter (OTC) or prescription products, speak with your health care provider.
How to use benzoyl peroxide
Before starting with any new skin care ingredients, it's a good idea to discuss them with your dermatologist or other health care provider. And always follow the instructions on the packaging of your chosen product.
Benzoyl peroxide comes in concentrations ranging from 2.5% to 10%.5 It's often formulated as a gel or cream, which is applied to acne-affected areas. While each product will be different, there is some general guidance to help manage acne:
- Clean the skin and apply the product with your fingertips. Avoid using a tool like a washcloth or sponge, which can cause irritation.6
- Give your acne treatment time to work. It may take several weeks or months before you see an effect.
- Keep your hands off of your face. Touching or popping pimples can cause acne to stick around longer and can potentially cause scarring.
- Protect your skin with a sun-protection factor (SPF) of 30 or higher and avoid tanning beds and the sun. Some acne medications, such as benzoyl peroxide, can make your skin extra sensitive to ultraviolet (UV) light.
- Apply the product as often as the instructions tell you to. Some may be for daily use; some are to be used once a week.
- Be patient. Benzoyl peroxide 5%, for example, usually takes 4 weeks to start working and can take 2 to 4 months to have the full effect.7
- The most common effect is skin irritation. If you notice a side effect, contact your health care provider immediately.
Benzoyl peroxide side effects
A common side effect is that benzoyl peroxide may bleach clothes or hair if it comes into contact. Although it is commonly believed that benzoyl peroxide can bleach skin, this is a myth.8
As always, check the product label and use the product as directed.
Common side effects of benzoyl peroxide include dryness, peeling or red skin and burning or stinging. Contact your health care provider if the symptoms are unbearable or do not go away after repeated use.9
More serious side effects include swelling and blisters. In very rare cases, use of benzoyl peroxide may lead to swelling of the face, tongue or throat and may include difficulty breathing. If the latter occurs, seek medical attention immediately.
Because benzoyl peroxide makes the skin more sensitive to the sun, avoid direct sunlight while using and make sure to frequently apply sunscreen of SPF 30 or higher.10
Is benzoyl peroxide good for acne?
Yes, it can help manage acne by killing bacteria that cause breakouts.
Is benzoyl peroxide an exfoliant?
No, it is a topical medication that kills bacteria, but it does not help the skin to shed debris or dead cells.
Can benzoyl peroxide cause acne?
It can take about four weeks for benzoyl peroxide to produce results. During this time, acne may seem to get worse.11 However, continued use is usually required to see results.
Can you use salicylic acid with benzoyl peroxide?
Yes, but it may increase dryness. Talk to your dermatologist or health care provider before using benzoyl peroxide in combination with other skin care products.
Este contenido es solo para fines informativos y no constituye un asesoramiento médico. Consult your health care provider before taking any vitamins or supplements and prior to beginning or changing any health care practices.
