The ingredients in compound henna are often not available. To determine whether it is safe to use HAIRPRINT or not request a certified analysis of the composition from the manufacturer.
Henna is a permanent ‘mud–like’ coating that ultimately clogs the hair cuticle, preventing the HAIRPRINT treatment from fully accessing the cortex of the hair.
For more information, read up more on blockers.
Henna and indigo do not lift off the hair by using other colouring treatments over them. The reddish tone from the residual henna might push through and reflect off the hair. If there is remaining indigo, your hair might appear darker. If in doubt read about the transition tips for hair that is not natural.
You can identify a compound henna as it often contains added ingredients in addition to indigo or henna. Some compound henna does contain undisclosed ingredients. These undisclosed ingredients possibly include metallic salts, additional dyes (if an ingredient listed contains: Red / Blue / Yellow / Violet / Black these are coal tar or chemical dyes), plant dyes and PPD.
Metallic salts such as silver/ bismuth, copper and lead can remain in hair for up to two years after using Henna. You can’t use any colouring product over these metallic salts because the results could be dangerous for your hair. Metallic salt products fade to strange colours.
- Lead turns to purple.
- Silver turns to green.
- Copper turns to red.
If you are using quality henna or indigo, you can safely HAIRPRINT over it. Body Art Quality Henna consists of henna/indigo ingredients only. If you are unsure, get an analysis of the components from the product manufacturer.
Your hair may appear more reddish than your natural colour after the first treatment. Two kits can be used if you want to cover the red toning.