Beauty & FitnessWhy your hair breaks, and what actually stops it
Heat, tight styles and over-washing do most of the damage. Small changes to drying and detangling do more than any "repair" shampoo.
Hair is dead once it leaves the scalp. That sounds bleak, but it's useful: it means no product can "heal" a strand, and it means the goal is simply to damage each strand as little as possible between the day it grows and the day it's cut. Most breakage comes from a handful of habits.
Where damage comes from
Heat. Above roughly 180°C, the proteins in the hair shaft start to change structure and the outer cuticle lifts and cracks. Daily straightening or curling on high heat is the fastest route to breakage.
Wet handling. Wet hair stretches up to 30% more than dry hair and is far weaker. Aggressive towel-drying and brushing wet hair from the roots cause a large share of everyday breakage.
Tension. Tight ponytails, buns and braids worn daily pull on the follicle and can cause traction alopecia — thinning at the hairline that is reversible early on and permanent if it continues.
Chemical processing. Bleach and permanent colour open the cuticle to work, and each round leaves the shaft more porous and fragile.
What helps
- Turn the heat down. Most tools work well at 150–170°C, and a heat protectant spray measurably reduces damage.
- Squeeze water out with a microfibre towel or old T-shirt rather than rubbing.
- Detangle from the ends upward with a wide-tooth comb, on conditioner-coated hair.
- Alternate tight styles with loose ones, and never sleep in a tight style.
- Wash as often as your scalp needs, not your hair. Oily scalps can be washed daily; dry ones every few days.
About "repair" products
Conditioners and masks coat the hair, smooth the cuticle and reduce friction. That helps prevent further damage and makes hair look and feel better. Bond-building products can temporarily reinforce some broken bonds in chemically treated hair. None of them restore a strand to its original state — regular trimming is what removes damage.
What to do this week
- Lower your styling tool by 20°C and see if you notice a difference. You probably won't.
- Swap the towel rub for a squeeze.
- Give your hair two heat-free days.