This is a hair-care treatment in ampoule form designed to reduce hair loss and stimulate hair growth. According to the product description:

• It is formulated “for both men and women”.

• It uses a plant-based active ingredient (referred to as “Prolyteine” / “prolyteine” or similar) which is said to favour hair strength and help anchor hair to the scalp, helping slow down hair loss.

• The text mentions it can be used on wet hair (after shampoo) or on dry hair, applied to sensitive areas of the scalp.

• The “1+1 free” offer suggests that you get two packs for the price of one (one plus one free). Check the offer details locally for validity.

Break the tip of one ampoule at the notch level.

Apply the serum to the scalp: either on wet hair (after shampoo using the matching anti‐hair loss shampoo) or on dry hair, concentrating on sensitive or thinning areas.

Massage the scalp gently to encourage absorption.

Do not rinse the serum after application — leave it on the scalp.

Typical frequency: the product states “twice a day for 4 months” in one listing.
For best results, it may recommend combining with the matching shampoo and possibly a food supplement (from the same range) for internal support.