I've had a heavy brow most of my life that is genetic. I started using retinol a few months ago and just recently switched to tretinoin hoping for some collagen production. I get Botox in the forehead and glabella area, but I always feel like doctors don't go low enough because my eyebrows/eyebrow muscles sit very low -- below my brow bone. A brow lift would be a big financial sacrifice right now and I feel too young -- what else can I do to stave that off until hopefully 40?