Definitely conditions and helps the brows!
I've been using this product for about a week and a half now.  I feel like I can actually see a change in my eyebrows.  I'm not sure if more have grown in, or if this works as a conditioning type treatment.  They do feel thicker!  I will continue to use it and hope it continues to improve.  I also have very sensitive skin.. and have not had any issue with this product at all.  I do like the twist option and brush to apply as well.  I've used other brow enhancers in the past that have tiny little brushes.. this brush is thicker and much easier/quicker to apply!
Rating: 5 stars