Oh holy moly this is a great product. The Soap & Glory Brow Putty* is very similar to the Anastasia Brow Dip idea. It comes as one pen that has a brush on one end and a twist of pot on the end that has the product in. It needs warming up a little before it's ready to use in the brows so you have to mix up the product a little with the brush before you apply it to the brows.
The brush is really thin which is great for creating fake hairs in sparse brows or creating a really thin line to fill in your brows. I have it in the shade Brownie Points and there are two other shades, Dark Choc and Love is Blonde. It took me a while to get used to the product as I am more of a pencil or powder girl but once I realised I only needed a light hand I really got into it and it gives me such a natural but filled in look. For only £7 it would be a welcome addition to any make up collection!