Check out the latest from Grenco Science

Sep 01, 2015

End of Summer Sale + Mystery Boxes Now through Labor Day only on GPEN.COM!

Our End of Summer Sale is now live on GPEN.COM! Discounts up to 50% storewide + $50 and $100 Mystery Boxes are available! Sale runs through Labor Day at 11:59pm Pacific Time.

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Aug 31, 2015

G Pen @ Be Street Weeknd: Los Angeles

We were pleased to take part in the American debut of Be Street Weekend in Los Angeles this week! In celebration of the first American release of the popular French streetwear publication, Be Street brought all the flavor of their Parisian street festival to The Container Yard in DTLA, including art, food, music, and fashion. Check the photos below and head to for more!    

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Aug 25, 2015

Snoop Dogg x Boiler Room x Ray Ban Rollerdisco Party

Last Thursday we were treated to a special Rollerdisco edition of Boiler Room featuring Snoop Dogg, Dam Funk, DJ Quik, and Thundercat. Check the photos below!  

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Jul 15, 2015

Introducing the G Slim Hookah Vaporizer

We are pleased to introduce the new G Slim Hookah Vaporizer, featuring a large-capacity chamber designed specifically for E-Liquids.  Also available in a Snoop Dogg BUSH version. Now available for $19.95, click here to shop the collection!

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Jun 30, 2015

TONIGHT ON G PEN RADIO: Grateful Dead's Fare The Well: Night 1 - 6/27/15 - Santa Clara, CA

Tune in to G Pen Radio tonight at 10pm EDT / 7pm PDT for a special live rebroadcast of Saturday night's historic Grateful Dead: Fare The Well - Night 1 concert from Levi's Stadium in Santa Clara, CA. Both sets will air, back to back in their entirety! Pack that G Pen and tune in at GPEN.COM/RADIO or on the free Dash Radio App!

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Jun 30, 2015

Get A Free Rastaclat G Pro Holster With Every G Pro Vaporizer Order on GPEN.COM!

Now on GPEN.COM, every G Pro Vaporizer order includes a FREE 100% Leather G Pro Holster by our friends at Rastaclat! Get yours while supplies last, only on GPEN.COM!

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Jun 23, 2015

Tonight on G PEN RADIO: Very Special Guest Brendon Urie of Panic! At The Disco

Tune in to G PEN RADIO tonight at 10pm ET // 7pm PT as Brendon Urie of Panic! At The Disco takes over the airwaves with the next installment in our #GMix series.  We will also be giving away free G Slims all night if you're listening on the Dash Radio App, so stay tuned and listen for your chance to win! Click HERE to listen live now via the webplayer, or download the free Dash Radio App for iPhone and Android! 

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Jun 22, 2015

G Slim Giveaways All Week On G Pen Radio!

Tune in to G Pen Radio all week, as we'll be giving away G Slims every day! Download the free Dash Radio App in the App Store or Google Play Store and follow the instructions below for your chance to win!

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Jun 18, 2015

Tonight on G Pen Radio: Boo Johnson's #GMix

Tune in to G Pen Radio tonight at 10pm ET/7pm PT as we present a brand new #GMix from special guest pro skater Boo Johnson! Click here to tune in to the web player now, or download the free Dash Radio App on iOS or Android!

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Jun 17, 2015

VIDEO: How to Grow Your Snoop Dogg 'BUSH'

To those who purchased a Snoop Dogg BUSH G Pro Vaporizer -  Watch the video below and follow the instructions to plant your own bush!  For everyone else, the Snoop Dogg BUSH G Pro Vaporizer is available for purchase here.

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Jun 08, 2015

PHOTOS: G Pen Radio Launch Event (Thursday, June 4th)

Location: Babylon Los Angeles, CA A launch and listening party for the all-new G Pen Radio, presented by G Pen and Dash Radio. Listen here now at GPEN.COM/Radio

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Jun 02, 2015

Live now on G PEN RADIO: Special Guest Snoop Dogg's SMOKE MIXX!

We're stoked to welcome the legend himself SNOOP DOGG as our first special guest 'G Mix' on G Pen Radio! Tune in now at GPEN.COM/RADIO or by downloading the 'Dash Radio' App in the App Store and Google Play!

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