Hair growth promoters (HGP)/ anti-hair loss agents are unique ingredients added to hair care formulations. They have the potential to stimulate hair growth and hence are also known as hair growth stimulants. Many cosmetic formulations with hair growth promoters claim to treat conditions like alopecia (hair loss). Hair growth promoters/ anti-hair loss agents can be natural or chemical based. Some common natural hair growth promoters are gingko biloba, aloe, asiasari, proanthocyanidins, amongst several others.