| 摘要 |
<p>There is disclosed an artificial tanning composition, preferably in the form of a gel, comprising a cosmetically effective amount of dihydroxyacetone (DHA) as an artificial tanning agent, an alcoholic phase and a hydroxypropylcellulose thickener. The composition may further comprise a glycol, preferably selected from one or more of ethoxydiglycol, propylene glycol and butylene glycol. The composition may further comprise ingredients miscible with oil. Preferably the composition is substantially transparent to visible light, and may further comprise a colouring agent, which is preferably oil soluble, to tint the composition. There is also disclosed a method of preparing artificial tanning compositions comprising the steps of: a) dissolving dihydroxyacetone in a minimum amount of water, b) adding alcohol to the aqueous solution from step a), c) dispersing hydroxypropylcellulose in the alcoholic mixture from step b), d) optionally, heating and then cooling to ambient temperature any remaining ingredients; and e) optionally, adding the remaining ingredients treated as in step d) to the alcoholic mixture from step c).</p> |
