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Human hair can be a tool for measuring the toxicity of a city, according to London-based architects Deborah Lopez and Hadin Charbel, who have also created a textile made from hair. Through their research studio, Pareid, Lopez and Charbel have been analysing hair samples as a way of mapping the levels of pollution across different areas of Bangkok. Samples containing larger quantities of heavy metals indicate higher levels of environmental toxicity.  Pareid has analysed the toxicity of hundreds of hair samples "Pollution is becoming a gigantic environmental problem," Lopez told Dezeen. "We were interested in the capacity of the human body to become a sensor to this, to reflect and record the environment where you live, where you breathe, and where you eat and drink."  The research began with an installation at Bangkok Design Week in 2019, which functioned as a test station The project, called Follicle, started out as an investigation into the potential of hair as an architectural material. Research suggests that around 6.5 million kilos of waste human hair is produced in the UK alone every year, so Lopez and Charbel felt this material could be an untapped resource for sustainable construction. However, after learning about the presence of heavy metals in hair, the pair realised they could also use the substance as a research tool in cities with dangerously high levels of pollution.  The installation was a space where people could cut off a small amount of hair and submit it for analysis They set up their first test station in Bangkok, a city that hit the headlines in early 2019 after high levels of smog forced all of its 437 schools to close. The architects created an installation at Bangkok Design Week 2019, inviting visitors to voluntarily cut off a small amount of their hair and submit it for analysis, along with details about their day-to-day environment. As the hair toxicity is affected by lifestyle choices – smoking and dying your hair both led to increased metal content, for instance – visitors were asked to also provide some anonymous information about themselves.  Participants were anonymous but were asked to provide some details about themselves and their day-to-day environment Although there was some reluctance, Lopez and Charbel were surprised by how many people were willing to donate their hair. They ended up with hundreds of samples. The toxicology analysis suffered long delays, as a result of the Covid-19 crisis unfolding at that time, but when they finally received the results they were able to see significant links between certain types of environment and certain metals. For example, people who lived near major highways were found to have a notably higher volume of arsenic in their hair. "From that moment we were able to link these two stories together, hair toxicity and pollution in the context of Bangkok," said Charbel.  Pareid has used the finding to create a "toxi-cartography" of Bangkok The architects have been using the information gathered to produce a "toxi-cartography", an interactive 3D map of the city that charts the varying toxicity across different areas. This is available to view on a dedicated website. The pair are currently presenting their research within the Spanish Pavilion at the Venice Architecture Biennale.  Lopez and Charbel have also developed a hair textile, as a separate part of the project Going forward, Lopez and Charbel hope to be able to set up test stations in more cities, so that they can start to build up a wider understanding of the links between urban conditions and hair toxicity. At the same time, the architects are also continuing to explore ways that waste hair can be used in building construction. They have used a felting machine to create a hair textile, which has featured in both the Bangkok and Venice installations. Lopez suggests that this felt could be used as an insulating material, or as some kind of acoustic panelling.  An object designed to encapsulate the research is currently on show at the Venice Architecture Biennale The main obstacle to overcome is the stigma surrounding the cleanliness of hair, Lopez said. "We find it interesting that we feel comfortable with the hair of non-humans, with animal fur, but we feel so disgusted by our own hair," she stated. "We want to find a way to use this material to create something that people feel attracted to." Human hair has been used in a number of recent design projects, including designer Céline Arnould's ceramic vessels cast from the hair of her friends and family and a collection of bricks made from hair and manure. from dezeen Project credits:
Architects: Pareid Architects (Deborah Lopez and Hadin Charbel) Collaborators: Konlawat Meklalit, Noppa-on Plidtookpai, Pitisuda Sukumalchantra, Phatsorn Mutanone. Support: Matter of Trust, Embajada de España en Bangkok, Bangkok Design Week 2019 and TCDC Photography and images Pareid & Visut Innadda Hair analysis: Mery Malandrino, Alberto Salomone, Marco Vincenti (Department of Chemistry - University of Turin, Italy) Website design: Pareid Architects (Déborah Lopez and Hadin Charbel) Website development & Data Visualization: Sherif Tarabishy Sound design: Donnie Brosh
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 “The 2021 Hair Report” from Cosmetify breaks down the most searched hair trends over the past 12 months. One of the most exciting aspects of the professional hair industry is the rate at which hair trends come and go. Even amid a pandemic, people enduring global lockdowns turned to social media to stay on top of the latest “it” hairstyles and eagerly requested them once salons began to reopen. “The 2021 Hair Report” from Cosmetify breaks down the most searched hair trends over the past 12 months.
5 styles with the biggest search increase
The 2021 Hair Report Our hair is one of the most important areas of our bodies, and also one that takes the most care to maintain. As such, hair care products and brands are big business. In fact, the global hair care industry is estimated to be worth $94.92 billion in 2021. With hundreds of huge hair care brands out there, the 2021 Hair Report will reveal the biggest brands right now, as well as the hottest hairstyle trends across the world and the most popular ‘hairfluencers’ on social media. The 2021 Hair Report Includes:
Most Popular Hairstyles The Hottest Hair Care Brands The Rising Stars of Hair Care Biggest Brands Social Following The Most Powerful Hairfluencers and Each Country’s Favorite Hair Style See the full report here >>> I hope this finds everyone reasonably safe and content. The news of the day can give us such a heavy heart. I know someone who always said “Don’t let them steal your joy.” Please take what ever measures necessary to find your joy. Getting outside for a breath of fresh air is a tremendous boost to our mental well-being. Go discover some delight. And remember, you can start your day over any time you choose. Be safe. Stay safe. Do what you can to keep those around you safe as well. ++++++++++ Once again I have a smorgasbord of articles for you from curly hair, bobbed hair, "natural" ingredients, to a recipe you didn't know you needed. A couple articles may seem long but they are packed with good information. Scan them over, scroll through at your leisure, or file them away for later. My hope is have something that will be pertinent to you, if not now maybe later. As always, I am available by email, text or phone if you have any questions or concerns. Looking forward to seeing you soon! Be well. Take Hair! 
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June 2025
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