Nano shampoo contains NANO and SOD (3-carboxylic acids pyridine n-oxide), a very powerful hair growth stimulator, similar or more powerful than minoxidil. It is easy to use and also well suited for female hair loss. It is a regrowth hair shampoo and should use 2 to 4 times weekly. It is recommended to use Nano shampoo with Prox-N to expedite hair growth. Ingredients for NANO Shampoo: Water, PEG Sorbitan Laurate, Cocamidopropyl betaine, sodium laureth sulfate, PEG 150, Disodiumcocoamphodiacetate, NaCl, PEG 150 distearate, laureth 13 carboxylate, panthenol, 3 carboxylicacidpyridine N-oxide (NANO), allantoin, arginine, puper oxide dismutase (copper peptide), fragrance.