I would like to inquire about Botox treatment for wrinkles around my eyes and between my eyebrows.

Hello. Recently, I have been stressed because fine lines around my eyes and between my eyebrows have deepened. Foundation tends to settle into these lines whenever I apply makeup, so I am considering getting Botox. However, I am worried about potential side effects, such as my facial expressions becoming too harsh or looking unnatural. I would like to know if it is possible to precisely adjust the Botox dosage to naturally smooth out the wrinkles without any side effects. I would also like to know the approximate procedure time and recovery period if I receive Botox around my eyes and between my eyebrows. As a working professional, would it be okay to visit after work for the treatment and return to work the very next day? Please also confirm if the clinic uses safe, genuine products. I look forward to a prompt reply.