The invention discloses a hair-growing
liniment and a preparation method thereof, and belongs to the technical field of
pharmacy. The
liniment comprises the following components in percentage by weight: 1-10% of
minoxidil microspheres, 5-20% of a film-forming agent, 0.5-5% of a polypeptide compound, 5-30% of a liquid auxiliary material and the balance of deionized water. Wherein the
minoxidil microspheres are of a three-layer structure composed of
minoxidil in the inner layer, nano
enzyme (
cerium dioxide) in the middle layer and
lactic acid-
glycolic acid ester
copolymer or
chitosan in the outer layer, and
controlled release and targeted delivery are achieved; the polypeptide compound is a compound of
oldenlandia diffusa polypeptide and a
copper curcumin derivative, and has the effect of synergistically repairing a
hair follicle microenvironment. Tests prove that the
liniment can remarkably prolong the
release time of minoxidil, increase the retention volume of minoxidil in
hair follicle parts and reduce absorption of the
whole body, shows a
hair growth promoting effect superior to that of a traditional preparation and a single-layer
microsphere preparation in an
animal model, and has good stability and use comfort.