Growth Plus Multigrowth Hair Serum 100ml This fortifying growth oil is a concentrate of pure active ingredients that has been specially developed to stimulate growth. It contributes to the repair of hair while protecting it against breakage, and it fights against itchy scalp. Formulated with 98% ingredients of natural origin, the growth serum is a true concentrate of natural oils. Thanks to its applicator tip, your care will be easier. How to use: As a growth serum, oil bath or finishing oil, this versatile product can be used in a variety of ways to meet your hair needs.