G Pen by Grenco Science

G Pen Herbal Vaporizer™ was specifically designed for use with dried herbs and comprises a stainless steel outer encasement, a hardened glass sleeve, and the tank in which dried herbs are vaporized.

However, we got sent the G Pen Vaporizer that’s designed for use with (thicker grade) oils, for which it uses a plastic tank that is filled with a syringe. There’s also a model that uses a nail and tank system.

Which is a bummer, since the G family of devices, look well built and feature attractive designs.
In short, when you’re considering which e-pen to buy you need to pay close attention to what is used and what add-on accessories are available.

The G arrives in a flip-top black box that feels quite classy.


The unit itself uses the standard G Pen battery, G Coil heating section and comes with 2 glass containers, wall and USB chargers and a dabbing tool.


As part of their new partnership, Grenco Science has also released the Snoop Dogg G Pen Herbal Vaporizer™, the first in a collection of upcoming releases designed by Snoop himself, The Double G Series.

Fully customized including a Snoop Dogg engraving, The Snoop Dogg G Pen features a decorative roadmap of Long Beach on the vaporizer and the inside perimeter of the box.

The device itself appears to be the same stainless steel outer encasement, hardened glass sleeve, and tank in which dried herbs are housed and vaporized. We looked forward to getting our hands on this one.

Grenco Science has certainly cornered the market for lovers of rap music and herb. They have big plans for 2014. We should expect to see more artist collaborations, which could mean more artists designing their own pens.

  • John

    The snoop dog g pen vaperizor sucks! I’ve been vaperizorizing for two years, and did not do my homework on this. I called them because when I put my “herbal mixture” in the glass chamber it made smoke and turned it black. They said it was a combonation of convection and combustion because the ” mixture” sits on the heating element. They told me to get a honeycomb glass screen to make it more of a vaperizor. They do not sell these, and told me to get them from the internet.
    I lost-spent 80.00 On the piece of this!
    Thank you for reading this, and don’t make the same mistake I did. Please share this everywhere and with everyone ps they don’t get screwed like I did. John L.

  • Sean

    Yeah it doesnt vape, it burns.

  • Grant

    I own a few portable vapes and this one didn’t even work once for me lol! My cousin bought it for Christmas and although a nice gesture I tried to warn him before hand about the “combustion” vapes. Just overall sucks get an oven unit. The gpen is really good not this one but the oven unit model. It’s 120 at any head shop. It’s probably the best one out there that isn’t made by the folks who brought you the volcano or their newly added mobile vapes my review is half a star and only bc it looks cool