When it comes to haircare, one question that has been making the rounds is whether or not infrared technology in hair tools is genuinely beneficial or merely a marketing gimmick. This article will discuss the science behind infrared, the different types of infrared, how it is used in hair tools, and the potential benefits for the skin and scalp.
What is Infrared?
Infrared radiation (IR) is a type of electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves. It is invisible to the human eye and can be experienced as heat, with objects emitting infrared radiation depending on their temperature.
Difference between Infrared and Far Red
Infrared radiation can be divided into different categories depending on wavelength, which include near-infrared (NIR), mid-infrared (MIR), and far-infrared (FIR). The term "far red" is sometimes used interchangeably with "far-infrared," though it typically refers to the part of the spectrum just beyond the red end of visible light (700-1000 nm). Far-infrared radiation has wavelengths ranging from 3 to 1000 micrometers and is often used in therapeutic applications for its deep heat penetration abilities.
Infrared in Hair Tools
Infrared technology is increasingly being incorporated into hair tools, such as hairdryers, straighteners, and curling irons. The primary purpose of using infrared radiation is to provide gentle, even heat that can penetrate the hair shaft more efficiently, helping to reduce drying time and the risk of heat damage.
Two Types of Infrared Emission
Active Emission: Active infrared emission involves using LED or halogen light sources to produce infrared radiation directly. Hair tools with active infrared emitters can provide a consistent and focused source of infrared heat to the hair.
Passive Emission: Passive infrared emission occurs when a coating or polymer with infrared emissive properties is applied to a hair tool. This coating absorbs thermal or electrical energy and emits infrared radiation in response. Passive infrared emission is generally considered to be less precise than active emission, as the intensity of the emitted radiation may vary depending on the temperature of the heating element.
Benefits of Infrared for the Skin and Scalp
Infrared technology has long been known for its therapeutic properties, and its use in hair tools may provide additional benefits for the skin and scalp:
Increased Circulation: Infrared radiation can stimulate blood flow in the scalp, promoting the delivery of nutrients and oxygen to the hair follicles. This may encourage healthier hair growth and improve overall scalp health.
Reduced Frizz and Breakage: The even heat distribution provided by infrared technology can reduce the need for high temperatures and prolonged exposure to heat, which can lead to frizz and breakage.
Scalp Therapy: Far-infrared radiation, in particular, can penetrate deeper into the skin, potentially providing therapeutic benefits for conditions like dandruff, psoriasis, and inflammation.
In a Nutshell...
While more research is needed to substantiate some of the claimed benefits of infrared technology in hair tools, it is clear that the science behind it is more than just pseudo science. By offering gentler, more efficient heat and potential therapeutic benefits for the skin and scalp, infrared hair tools have the potential to revolutionize haircare as we know it.
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