Anyone with split ends, breakage or frizz who wants repair without the weight of an oil or mask. Schwarzkopf positions it for all hair types, including fine hair that goes limp under heavier products.

It suits hair that has been coloured, lightened or heat-styled, and works as the take-home follow-up to a Fibre Clinix Bondfinity salon service. No special technique is needed, so it is fine for everyday home use as well as in the salon.

Most split-end products only coat the hair. Fibre Sealer pairs that cosmetic sealing with Bondfinity Technology, which Schwarzkopf developed to lock the hair's own keratin into the fibre. In the brand's testing that came out as 93% less combing breakage on damaged hair. You get smoother ends straight away and stronger hair over time, and it also works as your heat protectant before styling.

1. Towel-dry hair after washing, or start with dry hair.
2. Spread a small amount evenly through the lengths and ends.
3. Do not rinse. Blow-dry or style as usual. It protects against heat up to 230°C / 450°F.

Pros

• Visibly seals split ends (94% until next wash in brand testing) between trims
• Light cream texture that doesn't weigh down fine hair
• Heat protection up to 230°C / 450°F, so it can go on before blow-drying or flat-ironing
• Up to 48-hour frizz control with an anti-humidity effect

Cons

• Sealing split ends is cosmetic and lasts until the next wash; badly split ends still need a trim
• Silicone-based, so not for silicone-free routines
• Contains methylparaben
• Leave-in only; it is not meant for rinse-off or pre-shampoo use