i personally use the CARGO Lash Activator.. its a little pricey but its totally worth it! I also have the same issue.. but you can also use the Lash Activator Night Primer at night like before you go to bed and it will make them thicker and fuller..
and also if you buy them at ALTA.com its buy on get one free
Anyway, as someone else said, Covergirl Lashblast is really good.
If you're willing to spend more, I also like Too Faced Lash Injection. Also, at Sephora they have this Lash Stash mascara sampler...it's like $40 but has 10 sample size (still pretty big though) mascaras, and they are all really good, it's definitely a good deal.
I read in a magazine that when you use TWO mascaras, it defines your lashes even more. I use Clinique. I can't see which kind because it kinda faded, but it's the one that has two brushes. After that, I use "Estee Lauder More than mascara". It's really amazing.
Actually, if you would rather NOT purchase so many mascaras, you should get an EYE CURLER! Those are the best! Learn how to curl your lashes, and then apply mascara, and you will see how beautifully long and full they look!
Makeup is magic! And it makes our beauty stand out! :)
Ok I use a bunch of mascaras and they make a huge difference in my eyelashes.
I use Chanel Inimitable.. it really increases the volume, length, curl, and separates the eyelashes great. And doesn't clump at all.
I also use DiorShow by Dior.. does the same thing as Chanel Inimitable.
And the final mascara I use Givenchy Phenomen'Eyes. I absolutely love this mascara cause it does everything that the previous ones do and it gets every single lash which creates a fuller look since the brush looks spherical and it's tiny so it's easy to reach the very outer and inner eyelashes.
All three are pricey ($30+), but I believe you pay for what you get and I think it's totally worth it.
I have the exact same problem, but even after I put mascara on, one still cannot see it. To provide an alternative solution to you: fake eyelashes. I wear them everyday. Of course it has its downsides, such as, well, accidentally tearing your real lashes off, getting the gel in your eyes and etc. Use with caution, but if done correctly, it can look amazing.