Our onion biotin rosemary shampoo set contains shampoo: polyquaternium-10, onion bulb extract; Hair conditioner: Biotin, rosemary leaf extract. It can nourish and protect hair, improve the health of hair follicles, promote hair growth, and enhance the natural luster of hair. The use method of it is very simple: first wet the hair with warm water, take an appropriate amount of shampoo on the palm, rub it into foam, then smear it on the hair, gently massage the hair and scalp with fingertips, rinse the hair and scalp with warm water until all the foam is washed away, then take an appropriate amount of hair conditioner and evenly smear it on the hair tail to make the hair conditioner evenly distributed, then wear a bathing cap and wait for 3 minutes, and finally rinse the hair conditioner with warm water. While cleaning hair, it helps to strengthen the scalp and improve the glossiness of the hair.