Shake well before use. Gently brush dry or damp hair. Working in sections, liberally apply oil directly to the scalp and hair roots; gently massage scalp with fingertips. Apply to hair ends as desired. Leave in for 45 minutes to 12 hours (e.g. overnight for most intensive treatment). For deeper and faster mask penetration, warm treated scalp briefly with hairdryer or headwrap. Thoroughly shampoo scalp & hair with warm water, finish with a cold rinse.