The recommended course of action for someone with seborrheic dermatitis who needs to replace almond, argon, and marula oils in the Lux conditioner recipe is to add up the amounts of the three oils (almond oil, argan oil, and marula oil) in the recipe and replace them with MCT oil only. While the other oils may offer some benefits, it is important to prioritize preventing a flare-up of the scalp.   Note: This is a conditioner, so it's destined for your strands and not your scalp. We would suggest that you do your maximum to avoid putting the product on your scalp anyways, so you really put all chances on your side to have a great experience.