I have been looking at different fiber powders/spray and came across this product called Caboki. From what I can tell it is the same concept as Toppik but is not a shake or spray, it looks like you rub the bottle on the hair. Watch the demonstration video - I was impressed, it looked very neat and efficient, but then again that was a man with very short hair. http://www.caboki.com/why-superior Caboki boasts not only that it is much easier to apply but also: - Made from natural fibers from plants, safe even for sensitive scalp. - Bonds to hair more securely, does not require spray to glue fibers to your hair. - Free of animal ingredients, synthetic dyes, fillers and preservatives. - Your hairstyle lasts longer. - It better withstands wind, rain, sweat and abuse - No spray glue or hair spray is required. Made from Moroccan Gossypium Herbaceum fiber and natural mineral-based colorants. "Caboki bonds to your hair 200% more secure than any other fiber based thickening products on the mass market. It better withstands wind, sweat and rain." They explain the superiority of Caboki here: http://www.caboki.com/why-superior In a nutshell, Caboki is supposed to bind better because human hair has a positive charge, and this new Caboki fiber has a negative charge; this is the same concept of how a magnet works, and thus these fibers should stick to the hair better than any other fiber product, which are typically made of wool, which also had a positive charge and thus is not as attracted to positively charged human hair. I have never thought about my hair having a charge or not, but I suppose it has to, and so the relationship of the positive and negative materials does make sense... But I have read elsewhere that human hair is negatively charged. Toppik is described on various review sites as the fibers being positively charged, which bind with allegedly negative charged human hair. This is the complete opposite of Caboki. This says human hair is positive: http://science.howstuffworks.com/transp ... t/vdg1.htm This says human hair is negative: http://www.haircompounds.com/researcharticles.php Here is a link to a triboelectric series, which also puts human hair as positive: http://www.siliconfareast.com/tribo_series.htm Does anybody know for sure? I'm reading the reviews, as it seems predominantly geared towards men, but there is one from a woman with thinning hair and she said it was wonderful. They also did mail-out questionnaires to see how both men and women liked it, different ages, with all different degrees of thinning on the Norwood scale. They say in their FAQ that 30% of their customers are women. Has anyone heard of this, or used it?