-. BIOTIN SHAMPOO Contains a special formula enriched with biotin, which helps strengthen hair follicles and support hair health. It helps hair strengthen and look healthier. It encourages hair growth and volume. It aims to increase the shine of the hair and give it a vibrant appearance. It is effective against dandruff and crusting problems at the roots of the hair. Usage: Wet your hair with warm water while showering. Apply by massaging your scalp and strands for a few minutes. After applying completely, rinse with plenty of water. It is suitable for use for all hair types. (TO KNOW IF YOU ARE ALLERGY TO ANY OF THE INGREDIENTS, YOU SHOULD TEST IT BY APPRAING A LITTLE ON THE INSIDE OF YOUR WRIST AND WAITTING IT BEFORE USE).