- $146 for a keratin straightening treatment and blowout ($330 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.
Toni&Guy's path to international prominence began more than 50 years ago as a single-family salon in London. Today, their partnership of salons and hairdressing academies stands as an innovative, intercontinental fixture that has blossomed into more than 420 salons in 42 countries worldwide. In the United States and Canada alone, 20 academies train upcoming stylists, and nearly 50 salons create distinctive styles for a range of clients. Their stylists specialize in a variety of cuts that ranges from the avant-garde to modern interpretations of classic looks, such as beehives built in the style of Frank Gehry. Toni&Guy garners some of the most talent stylists while upholding a distinguished reputation as the hairdressing industry’s leading educator.