Damage
Damage and repair
Hair is dead protein. That single fact decides what is preventable, what is cosmetic, and what is simply gone — and most damage advice ignores it.
Heat styling by the numbers: which temperatures damage hair
What happens to keratin at each temperature band, why damp hair and a hot iron is the worst combination in hair care, and where to set the dial.
What bleach actually does to a hair strand
Bleach removes pigment, breaks bonds and strips the lipid layer that made hair water-repellent. Two of those three are permanent.
Split ends cannot be healed. Here is what to do instead
Why sealing serums are temporary glue, how far a split travels if left, and the habits that create them.
Why your hair colour fades in three weeks
Water does more damage to your colour than shampoo does. Which pigments fade fastest, and the five changes that actually extend a colour.