We get this question so often in the salon. So let me explain our thoughts on this...
Khairpep K18 contain 18 of 23 amino acids, it works to reconnect broken keratin chains by carrying amino acids back into the core of the hair and restoring the hair's overall integrity, adding shine and improving elasticity.
The peptides work as bond donor to the broken Disulfide bonds inside the hair. Once those bonds are repaired, the next time you use the Khairpep, it moves to the next broken bonds to repair them, and so on.