
Trace minerals, found in tap water, can tinker with your colour and texture services.
“The number one myth about colour is that chlorine turns bleached hair green,” says Gina Coburn, a colour technician with Joico of Canada. “Chlorine actually lightens hair.”
Bleached hair will turn “Kermit-colour” if it contains copper (a mineral frequently found in tap water), Coburn explains. If hair contains iron, bleach and perming solutions will turn hair brilliant violet during processing. After the service, hair is brassy orange.
While these minerals will not inhibit the penetration of colour or perming chemicals during your service, they do wreak havoc on your hair post-processing. If your colourist suspects your hair contains copper or iron (hair will appear greenish or extremely dull and drab), he/she will snip a lock of hair and do a strand test. If the test is positive (hair will immediately turn bright green or orange), your hair will be treated with a deep-cleansing, “chelating” shampoo and conditioner to remove unwanted deposits before proceeding with chemical services. Continue reading »