Benzoyl peroxide is a chemical compound, an organic peroxide made of two benzoyl groups joined by a peroxide bond, with the structural formula (C6H5-C(=O)O-)2. It is a white granular solid with a faint odor of benzaldehyde, poorly soluble in water but soluble in acetone, ethanol, and many other organic solvents. It functions as an oxidizer, used industrially in polymer production and, in medicine, as a topical treatment for acne.
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Benzoyl Peroxide
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How long does benzoyl peroxide take to work on acne?
The National Health Service says it usually starts to work within 4 weeks.
The United Kingdom National Health Service says benzoyl peroxide usually starts to work within 4 weeks, and advises speaking to a pharmacist or doctor if the acne gets worse or does not improve after 12 weeks. It describes the medicine as an antiseptic that reduces the amount of bacteria on the skin and helps with spots and blocked pores. It notes that using more than the recommended amount will not make it work faster and can increase the risk of side effects. Common side effects it lists are hot, itchy or painful skin, redness, and dry or peeling skin, which usually improve after a few days or when the gel is used less often. This entry records what the source says and is not medical advice.
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1. Wikipedia
Wikipedia contributors, Wikimedia Foundation
2. Benzoyl Peroxide (Wikipedia)
- First prepared and described by Benjamin Collins Brodie in 1858, History section
https://en.wikipedia.org/wiki/Benzoyl_peroxide, lead section
Benzoyl peroxide is a chemical compound (specifically, an organic peroxide) with the structural formula (C6H5−C(=O)O−)2, often abbreviated as (BzO)2.
In Group: Acne and Skin Care Products, Introduction
Benzoyl peroxide is a chemical compound (specifically, an organic peroxide) with the structural formula (C6H5−C(=O)O−)2, often abbreviated as (BzO)2.
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