Every hair moves through a cycle - a long growth phase, a short transition, then a resting phase before it sheds and a new hair takes its place. At any time most of your hair is growing, which is why healthy hair feels dense.

Shedding increases when more hairs shift into the resting phase at once. A baby, a fever, sudden stress or a big drop in calories can all do it, and so can hormonal changes and low iron. This kind of shedding usually shows up a couple of months after the trigger, is diffuse rather than patchy, and often settles on its own once the cause passes.

Breakage is different - it is mechanical and chemical stress on the hair fibre itself. Bleach and permanent colour lift the cuticle and weaken the internal bonds that give hair its strength. Heat styling, rough towel-drying and brushing wet hair add to it, and tight styles create friction at the same points day after day.

Two quieter causes are worth knowing. Protein overload - too many strengthening treatments without enough moisture - can leave hair stiff and brittle, so it snaps. And product or hard-water buildup can coat the hair so nothing absorbs properly. Both are fixable once you spot them.

K18 does one thing exceptionally well: it repairs the internal bonds that give hair its strength. The patented K18PEPTIDE is small enough to reach into the cortex and reconnect the keratin chains that break through colour, heat and everyday wear. For hair that is already fragile and breaking, that structural support matters - there is simply less hair to lose to snapping.

What it will not do is change your hormones or act on the follicle, so it is not a treatment for shedding or hair loss. It is cosmetic care that keeps the hair you are growing as strong, smooth and resilient as it can be, so it behaves better and breaks less.