Oxybenzone: Difference between revisions

Latest revision as of 11:17, 15 February 2025

Oxybenzone[edit]

Chemical synthesis of oxybenzone

Oxybenzone, also known as benzophenone-3, is an organic compound that is used in many sunscreens and other personal care products. It is a type of benzophenone, which is a class of aromatic ketones that are used as ultraviolet (UV) filters. Oxybenzone is known for its ability to absorb UVB and short-wave UVA rays, making it an effective ingredient in protecting the skin from the harmful effects of the sun.

Chemical Structure and Properties[edit]

Oxybenzone has the chemical formula C₁₄H₁₂O₃ and a molecular weight of 228.24 g/mol. It is a white to pale yellow solid that is soluble in most organic solvents. The compound consists of two phenyl rings connected by a carbonyl group, which is characteristic of benzophenones.

Mechanism of Action[edit]

Oxybenzone works by absorbing UV radiation and dissipating it as heat, thereby preventing the UV rays from penetrating the skin. This absorption occurs primarily in the UVB range (280-320 nm) and to a lesser extent in the UVA range (320-400 nm). By protecting the skin from UV radiation, oxybenzone helps to prevent sunburn, premature aging, and skin cancer.

Uses[edit]

Oxybenzone is widely used in sunscreen formulations due to its effectiveness in absorbing UV radiation. It is also found in other personal care products such as lip balms, moisturizers, and hair sprays. In addition to its use in cosmetics, oxybenzone is used in plastics and fabrics to prevent UV degradation.

Safety and Environmental Concerns[edit]

There has been some controversy regarding the safety of oxybenzone. Concerns have been raised about its potential to cause allergic reactions and hormonal disruption. Additionally, oxybenzone has been detected in water sources and is believed to contribute to coral reef bleaching. As a result, some regions have banned the use of oxybenzone in sunscreens.

Related Pages[edit]

@@ Line 1: / Line 1: @@
-'''Oxybenzone''' ([[chemical formula]]: C14H12O3), also known as benzophenone-3, is an [[organic compound]] used in [[sunscreen]]s and other [[cosmetic]] products to absorb [[ultraviolet]] (UV) light. It is a member of the benzophenone family of chemicals and acts by absorbing UV radiation, thereby protecting the skin from the harmful effects of the sun. Despite its widespread use, oxybenzone has been the subject of controversy due to concerns over its environmental impact and potential health risks.
+== Oxybenzone ==
-==Properties and Uses==
+[[File:Synthese_von_Oxybenzon.svg|thumb|right|Chemical synthesis of oxybenzone]]
-Oxybenzone is a pale-yellow solid that is soluble in most organic solvents. It primarily functions as a UV filter, absorbing UVB and short-wave UVA rays, which are known to cause [[sunburn]] and can contribute to skin aging and the development of [[skin cancer]]. Oxybenzone is found in a wide range of personal care products, including sunscreens, lip balms, and moisturizers, as well as in some plastics and furniture finishes as a UV stabilizer.
-==Health Concerns==
+'''Oxybenzone''', also known as benzophenone-3, is an organic compound that is used in many [[sunscreen]]s and other personal care products. It is a type of [[benzophenone]], which is a class of aromatic ketones that are used as [[ultraviolet]] (UV) filters. Oxybenzone is known for its ability to absorb UVB and short-wave UVA rays, making it an effective ingredient in protecting the skin from the harmful effects of the sun.
-Research has raised concerns about the safety of oxybenzone for both human health and the environment. Studies have suggested that oxybenzone can penetrate the skin and enter the bloodstream, where it may exhibit [[estrogenic activity]] and potentially interfere with the [[endocrine system]]. There is also evidence to suggest that oxybenzone may contribute to [[coral bleaching]] when washed off in the ocean, posing a threat to marine ecosystems.
-==Regulation and Environmental Impact==
+== Chemical Structure and Properties ==
-In response to these concerns, some regions have begun to regulate the use of oxybenzone in consumer products. For example, Hawaii and Palau have banned sunscreens containing oxybenzone to protect coral reefs. Consumers are increasingly seeking alternatives to oxybenzone, such as mineral-based sunscreens that use [[zinc oxide]] or [[titanium dioxide]] as active ingredients.
-==Alternatives==
+Oxybenzone has the chemical formula C<sub>14</sub>H<sub>12</sub>O<sub>3</sub> and a molecular weight of 228.24 g/mol. It is a white to pale yellow solid that is soluble in most organic solvents. The compound consists of two phenyl rings connected by a carbonyl group, which is characteristic of benzophenones.
-Alternatives to oxybenzone include other chemical UV filters and physical sunblocks. Chemical filters, such as avobenzone and octocrylene, absorb UV radiation in a manner similar to oxybenzone but may have different safety profiles. Physical sunblocks, like zinc oxide and titanium dioxide, reflect and scatter UV radiation away from the skin. These alternatives are considered safer for sensitive skin and have a lower environmental impact.
-==Conclusion==
+== Mechanism of Action ==
-While oxybenzone is effective at protecting the skin from UV radiation, its potential health risks and environmental impact have led to increased scrutiny and regulation. Consumers and manufacturers alike are exploring safer and more sustainable alternatives for UV protection.
+Oxybenzone works by absorbing UV radiation and dissipating it as heat, thereby preventing the UV rays from penetrating the skin. This absorption occurs primarily in the UVB range (280-320 nm) and to a lesser extent in the UVA range (320-400 nm). By protecting the skin from UV radiation, oxybenzone helps to prevent [[sunburn]], [[premature aging]], and [[skin cancer]].
+== Uses ==
+Oxybenzone is widely used in [[sunscreen]] formulations due to its effectiveness in absorbing UV radiation. It is also found in other personal care products such as [[lip balm]]s, [[moisturizer]]s, and [[hair spray]]s. In addition to its use in cosmetics, oxybenzone is used in [[plastics]] and [[fabrics]] to prevent UV degradation.
+== Safety and Environmental Concerns ==
+There has been some controversy regarding the safety of oxybenzone. Concerns have been raised about its potential to cause [[allergic reactions]] and [[hormonal disruption]]. Additionally, oxybenzone has been detected in water sources and is believed to contribute to [[coral reef]] bleaching. As a result, some regions have banned the use of oxybenzone in sunscreens.
+== Related Pages ==
+* [[Sunscreen]]
+* [[Ultraviolet radiation]]
+* [[Skin cancer]]
+* [[Coral reef]]
 [[Category:Organic compounds]]
-[[Category:Sunscreen ingredients]]
+[[Category:Sunscreening agents]]
 [[Category:Endocrine disruptors]]
-[[Category:Environmental controversies]]
-{{Chem-stub}}
-{{Environment-stub}}