Abstract: Disclosed are a hyaluronic acid composition having permeation-promoting effects, a preparation method thereof and the use thereof. Provided is a hyaluronic acid composition, comprising: hyaluronic acid or a salt thereof, an acetylated hyaluronic acid or a salt thereof, and a hydrolyzed hyaluronic acid or a salt thereof. The hyaluronic acid composition of the present application has a small addition amount, can effectively facilitate the absorption of other active ingredients in a formula to achieve synergistic effects, has a small particle size, is uniform, has a fast dissolution rate, has an excellent absorption speed in a product, and is superior to hyaluronic acid treated by means of simple mixing in improving skin hydration. Compared with traditional penetration promoters, the hyaluronic acid composition of the present application causes no damage to the skin and is safe.

Abstract: The present application provides a use of a hyaluronic acid or a salt thereof and/or trehalose in stabilizing ergothioneine, an additive for stabilizing ergothioneine, the additive containing the hyaluronic acid or the salt thereof and/or trehalose, and a composition, the composition containing ergothioneine, the hyaluronic acid or the salt thereof, and trehalose. Compared with other auxiliary materials, the hyaluronic acid or the salt thereof and trehalose provided by the present invention can obviously mitigate the damage of a high temperature to ergothioneine, thereby increasing the yield of an ergothioneine powder product. The composition obtained by the present invention has good antioxidant and anti-apoptotic effects.