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L’Oreal EverPure Moisture 21-in-1 Leave-In Conditioner Spray
L’Oréal EverPure 21-in-1 is one of the examples I used because L’Oréal actually shared details about their heat protection testing approach. They described using treated vs untreated hair swatches, exposing them to high heat (like 450°F), and analyzing damage with techniques like DSC to evaluate keratin denaturation and cuticle/cortex integrity.
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Pros
- +Brand described a clear treated-vs-control heat testing setup
- +Uses DSC as part of claim substantiation
- +Heat protection claim validated at high temperatures (per brand statement)
Cons
- -Like most heat testing, a lot of the detailed data isn’t consumer-facing
