Xiànzài niánqīngrén yě kāishǐ dǎ ròudúsù shòuliǎn le.
These days young people have started getting Botox to slim their faces too.
Tips
usage
Full form is 肉毒杆菌毒素. Paired with the verb 打 (dǎ, to inject): 打肉毒素. In cosmetic context often used interchangeably with 瘦脸针 when injected in the masseter muscle.