Just realized how much heat damage happens below 300 degrees

Honestly, I was reading a study from the Journal of Cosmetic Science last week. It said that hair protein starts to change at just 230 degrees Fahrenheit, not the 350 I always thought was the safe limit. I found it when I was looking up why a client's hair felt gummy after flat ironing. Now I double-check my tool temps on every client with a heat-sensitive strand test first. Has anyone else adjusted their heat styling routine because of this?

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terryrobinson6mo ago

Yeah, I saw a thing about how even blow dryers can get hot enough to cause that kind of damage.

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blakeallen6mo ago

Makes you wonder what other "safe" limits we're wrong about. Feels like half of what we know is just waiting for a better study to come along.

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