It is a leave-in product which is best to apply on freshly washed hair. Use 1 – 2 drops of serum, rub it between your palms well, and then evenly distribute onto the midsection and ends of the hair. DO NOT apply to the hair roots. Be careful not to use too much serum. It may make hair greasy and heavy if you do so. It is recommended to use the serum first before drying as it gives optimum heat protection, and then, in the end, to add more shine if needed.