A new gel that works in a similar way to Botox injections could soon be offered to people seeking anti-wrinkle treatments.
Researchers have revealed that two preliminary studies of the product, which contains botulinum toxin type A like conventional Botox, produced encouraging results.
Dr Michael Kane, a New York-based plastic surgeon who carried out the research, said the gel helped to reduce moderate to severe crow's feet around the eyes of patients.
The expert told CBS News: "The gel contains botulinum toxin type A and a peptide carrier, which is what helps the botulinum toxin gel penetrate the skin."
Dr Kane said the product demonstrated "good effectiveness" in both studies, which involved 270 participants.
The findings will be formally presented at the annual conference of the American Society of Plastic Surgeons this weekend.
As well as fighting wrinkles, Botox has been touted as a potential treatment for medical conditions such as cerebral palsy and migraines.