Abstract: The present disclosure provides a composition comprising (a) exosome-like nanovesicles or exosomes and (b) a carrier, wherein the exosome-like nanovesicles or exosomes are extracted from Withania somnifera and methods of effecting a change in hair appearance, hair growth, hair pigmentation, hair follicle size or hair shaft size, comprising administering to the skin of a subject in need thereof an effective amount of such a composition.

Abstract: The present disclosure provides all-natural nano- or micro-emulsions for the treatment of the skin, hair follicles, and related conditions, methods of using such nano- or micro-emulsions, and methods for preparing such nano- or micro-emulsions. The present disclosure relates to nano- or micro-emulsion formulations with improved bioavailability, time of onset, cellular permeability, and viscosity that can be suitable for topical, sublingual, oral, and/or nasal administrations. The current disclosure also includes compositions and methods for improving the bioavailability and the onset of actions arising from the particular components within the nano- or micro-emulsion formulations of the present disclosure.