I'm not too sure about Great Lash. I buy it about once a year, hoping I'll love it. It was the first mascara I bought after seeing the iconic pink and green tube in Mum's makeup bag for years when I was a kid.
However, the formula is so wet it's hard make it work for my lashes. My lashes are somewhat long and with other mascaras, have a decent amount of natural curl after a coat or two. With the Great Lash, it seems like the formula is too wet that it's just not buildable and it weighs down my lashes - which means I don't get length or volume.
It might be great paired with another mascara, perhaps - but for the meantime this is my 'no makeup makeup' mascara but even then I rarely turn to it. It doesn't work for me on it's own whereas other mascaras do, so I won't repurchase as it's too much hassle to get a good result.
I first used it at 12 or 13 and it's great for that age - it's noticeable but not at all 'makeup-y'.
This is the first mascara I ever used and I recommend it as a starter if you are just starting experiment with makeup and wanna look natural. I wouldn't go for the waterproof one though. And if you are looking for a volumising mascara....don't look here, try the Volum Express range :)