It lasts a long time and is not expensive in that size. Some of the other products have many pheromones, which is why they cost more in larger sizes. You can apply the GC to it. Shine is the same for women and men. Everybody uses and I’d say 75-90% of people like it. Forget the “Men” part. It’s unisex. Here’s a good report on Instant Shine for you.