Benefit do a Browvo conditioning primer, that you can put on before bed, after a while you should have fuller brows. A lot of people also do the same with Jamaican Caster Oil - the before and after's look amazing on this!
Nanolash worked for my eyebrows and eyelashes but you have to religiously apply the serum every night for good 6 weeks to see first results. Nanolash serum is cheaper than Revitalash but works the same. You can get it for aprox £29.95 online