The gel could potentially have an impact on
the colour due to the pH level. Generally, hair care
products designed to not affect colour are Acidic, around pH 4. We have tried to keep our products pH neutral (around 6.5 for the Gel)
so they are non-irritating. Acidic products that are left on the hair can be irritating to the scalp if you already suffer
from any irritation or dryness.