Ok guys, how about massing up our combined knowledge into something usable, simply a vote for the best concealer product/combination , followed up by a brief motivation to why it truly is. I personally haven't used any of these products but I'll make an assesment based on what I've read so far. Toppik is good for the vertex and midscalp area but comes off easily (even with a good hairspray). The stuff comes off in wet conditions and rubbing like when sleeping. The results can seem great in bad lighting but can be obvious in harsh lighting, like sunlight. It can then look a bit frizzy and sawdusty, especially when applied in excess. On the plusside It's easy to apply and takes less than five minutes (sprinkle, rub, spray and go). DermMatch is favored mostly for its perseverance, it comes off when you want to come off. It withstands light rain and wind, even rubbing if applied with hairspray, but its too risky to go swimming with it or sleep on a light colored pillow case. Its a bit of a hassle to apply as you have to "apply make up" to your hair and scalp. I don't know if it actually thickens up the hair or just colors the bald spots. None of these products can be used to reconstruct the hairline fully, one must consider that they can only be applied at minimum half an inch behind the hairline to give a natural appearnce. They require a generous amount of thin hairs to adhere to and won't work on slick bald areas. Maybe even vellus hairs (often seen from finasteride treatment) can be thickened up with these products. I haven't really understood what the difference between couvre and dermmatch are, or read that much about any other products. The more comments the better. This thread is your best experiences and assesment of the best product out there for your situation. Describe your situation and the product you chose so we can help as many as we can (me included). Feel free to give any alternate information resources, and before and after pics in different lighting will probably be greatly appreciated. Thanks guys.