How often should I use this mask and what is the correct way to apply it?

Apply the mask after shampooing while hair is still damp — not soaking wet — so the product can adhere to the fibre rather than slide off. Distribute a generous amount from mid-lengths to ends, then gently massage any remaining product into the scalp to let the Vital Hair Aktive+ complex reach the root area. Leave it on for 5–10 minutes; longer contact time does not increase efficacy and may make rinsing harder. Rinse thoroughly with lukewarm water until no residue remains. For most people, 1–2 applications per week is sufficient; daily use can weigh hair down and is unnecessary because the oils and active complex continue to work between washes. If you wash your hair more than three times a week, alternate the mask with a lightweight conditioner to avoid build-up.