Hair color is something people can control, unlike the silent rage everyone feels when the radio has to pause for station identification. Change what you can with this Groupon.
Choose from Four Options
- $22 for a women’s haircut and style with a conditioning treatment (up to a $65 value)
- $45 for a haircut, partial highlights, and style with a conditioning treatment (up to a $120 value)
- $52 fora haircut, full highlights, and style with a conditioning treatment (up to a $165 value)
- $97 for a Brazilian Blowout smoothing treatment (a $350 value)
Some hair-straightening products that claim to be formaldehyde-free include aldehyde compounds, which are similar to the carcinogen formaldehyde. Side effects may include nosebleeds, headaches, vomiting, and respiratory problems, among others. Learn more about the health risks here.
The invention of the hair dryer has given hair stylists a powerful tool of the trade and the rest of us a quick way to dry soggy fireworks. Check out Groupon’s explanation of the science behind dry hair:
Hair Dryers: The Physics of Rapid Evaporation
Given time, everything wet—even hair after a long shower—dries due to evaporation. When left to “air dry,” hair slowly loses its moisture as the air scoops it up and converts it to water vapor. Hair dryers speed up the drying process by blowing hot air over the wet hair—a process that works wonders thanks to two key principles of evaporation:
- Evaporation requires energy, and more energy—in this case, heat—helps break the bonds holding water molecules together more quickly; when those bonds are loose, the water changes states.
- A pocket of air can only hold a certain amount of vapor before it becomes saturated. Thus, blowing air over the hair increases the amount of air that can potentially pick up the vapor.
All hair dryers consist of an electric fan and a heating element. As the fan pushes air down the barrel, it passes over the heat and emerges as hot air. Though some models heat coils of wire with an electrical current, others have ceramic heating elements, which can dry hair more quickly by producing the more radiant, safer far-infrared heat. Lately, many stylists have begun to adopt ionic hair dryers, which expel hot air with a surplus of negatively charged ions, reducing static electricity and resulting in smoother hair.
Hair Extensions By Sonya
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