A new study published in Annals of Dermatology has found that a needle-free microjet drug injector could be a useful method of providing toxin treatment.
The split-face study – from dermatology researchers Young Gue Koh, Woo Geon Lee and Kui Young Park – aimed to evaluate the effectiveness and safety of the needle-free injector, powered by an Er:YAG laser, for injecting toxin in crow’s feet wrinkles. A five-point scale was used to assess the severity of the wrinkles before and after needle and needle-free treatment.
10 Korean women participated in the study. Both sides exhibited significant improvement in crow’s feet wrinkles compared to the baseline, with no noticeable differences between the two sides. The microjet injector side showed a significantly lower pain score, while there was no difference between the sides in terms of aesthetic improvement.
The study concluded that the needle-free microjet drug injector may be a useful option for treating crow’s feet wrinkles with botulinum toxin due to its ability to reduce pain.
