I was told that applying tretinoin on my eyebrows will rejuvenate the eye area. Is this true?

You can definitely use retin-a along the lower eye margin, maybe rubbing it in well along the orbital bone that you can feel and along the eyebrows.  I would probably not use it directly on the upper and lower eyelids as it might be more irritating to that delicate, thin skin.   I always advise my patients to use a good quality eye cream on the upper and lower eyelids first, then apply the retin-a all over the rest of the face.  We recommend using a pea-sized amount or a little more all over a clean, dry face at bedtime.  It can be helpful in reducing the size of pores, keeping acne at bay, and helping turn over the skin revealing a fresh, youthful appearance if used consistently over the years and also using a good quality sun block daily.  Thanks for your question!