Tensile testing. Dyson engineers go to long lengths to understand strands. We use our Textural Analyser in our hair science lab for tensile testing. Damaged hair becomes weaker and less elastic. Extreme heat changes the shape of keratin strands within the hair – α-keratin slowly converts to β-keratin at temperatures over 150°C. Understanding the effects of damage means we can engineer machines that keep hair healthy and happy. #DysonHair #HairScience #HairHealth #HairDamage #HealthyHair #dysonhairscience