Keratin for
extensions
Keratin for extensions is a protein-based polymer adhesive that melts at 150–180 °C and sets into a flexible bond. Its quality decides whether the attachment survives two months of washing, styling and temperature swings. Cheap keratin crumbles and yellows; high-melting keratin keeps its shape for the full wear period.
Colours and when to use each
Clear and white keratin go on light hair, where they disappear into blonde. Brown is for light to mid brown shades, black for dark hair and thick brunette heads. A colour mistake shows most at the parting: a white bond on dark hair reads as dandruff from an arm’s length away.
High-melting versus ordinary
Ordinary keratin softens at just 60–70 °C — that is a hot dryer, a straightener, even a very hot shower. The Italian high-melting formula needs 150 °C or more, so the bonds do not creep during styling. The price gap between them is small; the difference in wear is not — cheap keratin brings the correction forward by three or four weeks.
What else you need besides keratin
Pliers with temperature control — standard, micro and nano bonds need different tips and different heat. An alcohol-based removal fluid, which softens the bond so it can be crushed with nippers without pulling hair out. And a protective plate shielding the scalp from the heated tool. We stock all of it in the tools section.
Common questions
Which keratin is best for extensions?
Italian high-melting keratin, softening from 150 °C upward. It does not creep under a dryer or straightener and holds the bond to the correction date. Match the colour to the hair: clear and white for blonde, brown for mid shades, black for dark.
Can you do extensions without keratin?
Yes — there are tape-ins on an adhesive strip and cold methods using metal beads or thread. But bonded methods give the least visible attachment and hold best in hair that moves.
How much keratin does one head take?
Roughly 20–30 grams for 400–600 bonds when they are shaped neatly. Using more usually means the bonds are being made too large — which is both more visible and heavier on the root.
Read next
questions?