Hair oil and coloured hair: compatible?
The question comes up with every colour: will an oil bath strip it? The answer fits in one sentence: the oil is not the issue, the shampoo that follows it is.
Why the oil itself is not to blame
What fades a colour are surfactants — the cleansing agents in shampoos — hot water, and time. A plant oil contains no surfactant: it washes nothing and extracts no pigment.
But a rinse-off oil requires a shampoo to come out. Every oil bath is therefore, mechanically, one more wash. That is where the colour is decided, and nowhere else.
What to do about it
- Do not add washes. Apply the oil before a shampoo you would have done anyway, not on top of it. The total number of weekly washes must stay the same — the full reasoning is here.
- Rinse with lukewarm water, not hot. Temperature counts as much as the product.
- Wait after colouring. Hairdressers commonly recommend not washing within the following 48 hours, so the colour can set. That delay applies to an oil bath too, since it ends with a shampoo.
Coloured hair, and often drier
Colouring opens the cuticle to deposit pigment inside. Much coloured hair is then more porous and rougher to the touch — which is precisely the ground where a leave-on oil brings something noticeable to detangling and suppleness. The benefit is real, provided you do not pay for it in extra washes.
A strand test, if you hesitate
On a fresh, intense or home-made colour, take a discreet strand at the nape, carry out the full routine on it — leave on, rinse, shampoo — and look. It is the only method worth anything, because no article knows your colour.
And the essential oils?
Both comai. oils contain them, and their exact proportions are published. They are present as aromatic traces, far below the concentrations used in aromatherapy. If you are pregnant, breastfeeding, or have a known sensitivity to one of the listed components, read the label first — it takes two minutes.
