Long lashes not in your genes? Our revolutionary new scientifically-engineered mascara is packed with proteins and amino acids that bind to lashes for genetic defying length and strength. The unique double helix brush grabs each lash, no matter how small, for the ultimate fanned out effect. Dramatic jet black shade intensifies and defines. Defy genetics with Lash DNA Mascara. -Smashbox.com

Revolutionary Double Helix Brush:
- Specially-engineered design dramatically lengthens, separates & defines each lash
- Delivers intense, jet black lashes in just one coat
- Lashes instantly look bigger, bolder, longer & more defined
- Sweeps lashes up & out for a gorgeous, doe-eyed effect 

     -smashbox.com

So this mascara seems to be all about the brush according to smashbox.com. I must say it is the mascaras most redeeming feature.

I have had this since mid December and I must say it is my night out mascara. It gives me a fuller thicker lash without clumps or gooping up on me.

It has a slightly thicker formula (not too liquidy) and with the brush works great to add a false eyelash effect (or at least on me).

The brush has sort of an hourglass shape to it, but still gets bigger on the end. It is similar to the Avon Smooth Minerals Mascara but at the same time different. It is just as effective as the Avon at providing a clump free thick full lash.

The formula is jet black and leaves my lashes feeling nice and not too crunchy or stiff.

• great brush
• full, thick lashes
• gives me a false lash look
• no clumps
• very black
• no crunchy on the lashes