Hi @baze92! Retinol helps decrease inflammation, unclog pores, and reduces the appearance of fine lines, wrinkles, and hyperpigmentation. However, it will not help improve sunken eyes. I would recommend a HA dermal filler like Juvederm Voluma or Restylane.
There are no contraindications to injection of dermal fillers or collagen stimulants in patients with history of facial nerve weakness including Bell’s palsy.
I prefer Sculptra for the temples since it is a liquid and that way has very few side effects, and certainly the ones that you mentioned. If you had a filler injected incorrectly you would know almost immediately that something was wrong. That's why it is so important to consult an expert in c...