Promote scalp health and optimize hair growth with this hair growth set. "Need More," a plant based oil formulated fto promote a healthy scalp environment and thicker hair, provides scalp support. Combined with the Solaris Laboratories LED hair brush, which stimulates the scalp and improves hair cell metabolism for growth, these two products work together synergistically to enhance your hair routine for anti hair loss, hair resilience, and growth. *USB charging cord is included..Suitable for all hair types Targets concerns of hair loss.Vegan & cruelty-free.Free of parabens.60 mL.Do a skin patch test with both the led light and hair serum in two different locations prior to use.