Since my eyes are very hooded otherwise. How is botox brow lift (a.K.A. Chemical browlift) and how are the results?

Upper Blepharoplasty. Botox in the Crows foot area can minimally lift the lateral brow. Hooded lids usually require an upper blepharoplasty (eye lid lift) for best results. Consult a board certified plastic surgeon for advice.
Botox. It really depends on your anatomy. A chemical brow lift has its limits in terms of how much is lifted. Have your face evaluated by a board certified facial plastic surgeon.
Not effective. If you have that much hooding of the eyes, Botox treatment will not be that helpful. You should see a plastic surgeon and consider having formal brow lift and will likely need an eyelid procedure as well.
It works. Botox lift does raise the brow but the results can vary. It typically lasts 4-6 months. See a facial plastic surgeon for a consult!
Botox. Botox is a chemical that acts by relaxing muscles so that certain facial expressions cannot be made anymore that lead to fine lines and wrinkles. If done correctly, certain muscles may be injected and relaxed so that you achieve a brow lift. This is a non-surgical brow lift that looks great if performed right. It is temporary and lasts 3-4 months.