Hairdressing products Postquam HAIRCARE ARGÁN Fragile Hair Elixir. Argan oil elixir for fine hair that acts as a repairing, nourishing and hydrating treatment. Argan oil strengthens, provides shine, softness and silkiness. All this without leaving the hair greasy and free of residues and, in addition, it facilitates styling. It is formulated with silicones, which repair the hair fiber and the tips. Apply to hands, spread evenly on clean, wet or dry hair, and do not rinse.