Biotin and hair oil at the same time: a good idea?
Yes, and there is nothing to organise. One is drunk, the other is rinsed out: two routines that never meet.
Two paths that do not cross
A biotin food supplement goes through the digestive tract. A hair oil stays on the outside: you apply it, leave it on, rinse it off. There is no point of contact between the two, so no interaction to fear, and no reason to space one from the other.
The question still comes up often, and legitimately so: with medicines, we are used to having to space doses. That reflex does not apply here.
What each one does, and does not do
Let us be precise, because regulation is.
- Biotin — one single claim is authorised in Europe: biotin contributes to the maintenance of normal hair. Vitamin C, present in the same formula, contributes to the reduction of tiredness. That is everything that can be stated, and that is everything we will state.
- The oils — these are cosmetics. They act on the look and feel of the hair, on detangling, on scalp comfort. They have no nutritional effect whatsoever.
In other words, they do not do the same thing, and that is exactly why you can do both. The detail of what regulation allows us to say about biotin is here.
The real reason not to separate them
It is arithmetic. A hair routine is judged over three months, because that is what the hair cycle dictates — we explain it here. Doing biotin for three months, then the oil for three months, is six months before you know where you stand. Doing them together is three.
At what time of day?
- The biotin — 15 mL a day, preferably with a meal. Breakfast works well because you are less likely to forget.
- The oil — 2 to 3 times a week, before shampoo, whenever it suits you.
Both on the same day, an hour apart or ten: it makes no difference.
One thing to check
That you have the right oil. An oily scalp and dry lengths do not call for the same formula, and that is the only choice where you can get it wrong. Three questions are enough to decide.
