Natural Growth Therapy™ is a high performance formula designed with 11 DHT fighting ingredients. NGT™ also provides the hair with advanced nutrients to help revive thin, dull, aging hair. NGT™ ‘s unique herbal formula helps stimulate your hair and scalp health with its high percentage of panthenol and cysteine; a keratin protein, which is an essential component of hair and is formed by 18 amino acids. (Cysteine plays the most important role in the cohesion or strength of hair.)