The REAL reason why you have lines across your forehead is because you are getting older and your brows have sagged. If you look critically at your bows you will note that instead of having a gentle masculine arch they are both nearly straight with your right being positioned lower than the left. As a result of this sagging, the amount of upper lid skin is increased making seeing things in the upper field of vision harder. As a result, when you drive you will tend to both tilt your head back and constantly use the forehead muscle , the Frontalis, to keep lifting your sagging brows to clear skin from the upper field of vision. The result - a large frontalis muscle and permanent creasing of the Forehead skin. Placing Botox in the frontalis will temporarily take away the muscle's ability to crease the forehead. This would allow fillers placed in the wrinkles to remain in place and not be squeezed out by the muscle's contractions. (Bear in mind though that it takes 5-7 days for the effect to take place. Therefore, if you REALLY wanted to make sure your filler money was not wasted, you should have the fillers put in 7-10 days AFTER the Botox injections). As regards Botox - 2 cautionary notes:1. Make sure you are NOT injected closer than 1-2 fingers from the brows. If you are injected lower than this line your brows will fall much lower and you will have a hard time seeing. (See link below for BAD BOTOX).2. In my opinion, 20 units of fresh, active Botox (Again, read the link below to understand) is optimistic. If you absolutely wanted Botox in the Forehead, I would place AT LEAST 25 Units with the understanding that when you are seen 7-10 days later you may need a touch up. 20% TCA in my opinion is a useless procedure for what you are seeking. I would not do it at the same time and I do not offer it in my practice. The peel is a VERY superficial peel that will not smooth lines of any significance. As far as WHO should be giving Botox. Although there are good non-MD injectors out there, I firmly believe that a Plastic Surgeon/ENT/Dermatologist with an intimate knowledge of facial anatomy and cosmetic proportions is the best choice. For the best BOTOX resource on the Internet, follow the link below - Dr. P. Aldea