Grenco Science is a leader in engineering advanced cannabis vaporizers, setting new standards in aesthetics, portability, functionality, and user experience. Through proprietary research and development, as well as collaborations with influencers in music, art, and fashion, Grenco Science is transforming the cannabis experience and leading the movement to bring cannabis traditions to the 21st century.

G Pen

Batteries & Power

G Pen Nova Vaporizer

Cartridges

Sweet Melon Cartridge 0.5g

Guava Cartridge 0.5g

Jack Herer Cartridge 0.5g

Blue Dream Cartridge 0.5g

Grape Dreams Pod 0.5g

Clementine Cartridge 0.5g

Coconut Crunch Cartridge 0.5g

Member Berries Cartridge 0.5g

Grape Ape Cartridge 0.5g

Blueberry Cartridge 0.5g

Strawberry Lemonade Cartridge 0.5g

Strawberry Lemonade is a&nbsp;<a href="/strains/lists/category/sativa">sativa-dominant</a>&nbsp;strain that took 1st in High Times&rsquo; 2015 Denver Cannabis Cup as &ldquo;Best Sativa Concentrate.&rdquo; The supposed cross of <a href="/strains/strawberry-cough">Strawberry Cough</a> and <a href="/strains/lemon-og">Lemon OG</a>, Strawberry Lemonade stays true to form, exhibiting tangy aromas and flavors coupled with a heady onset and complementary body effects. Enjoy Strawberry Lemonade throughout the day, but don&rsquo;t plan too far ahead as this strain can be whimsical and intensely relaxing.&nbsp;

Strawberry Lemonade is a sativa-dominant strain that took 1st in High Times’ 2015 Denver Cannabis Cup as “Best Sativa Concentrate.” The supposed cross of Strawberry Cough and Lemon OG, Strawberry Lemonade stays true to form, exhibiting tangy aromas and flavors coupled with a heady onset and complementary body effects. Enjoy Strawberry Lemonade throughout the day, but don’t plan too far ahead as this strain can be whimsical and intensely relaxing. 

Strawberry Lemonade

Strawberry Lemonade is a sativa-dominant strain that took 1st in High Times’ 2015 Denver Cannabis Cup as “Best Sativa Concentrate.” The supposed cross of Strawberry Cough and Lemon OG, Strawberry Lemonade stays true to form, exhibiting tangy aromas and flavors coupled with a heady onset and complementary body effects.

510 THREAD COMPATIBLE
Battery is compatible with any 510 threaded tank
DUAL-USE TANK
Works for concentrates and ground materials
QUARTZ BOWL
Quartz bowl with ceramic dish heating element
POWERFUL BATTERY
300 mAh battery with micro USB pass-through charging
VARIABLE VOLTAGE
3 variable voltage settings plus "Extended Draw" mode


Grape Dreams G-Pen Cartridge 0.5g

Tropical Fruit Cartridge 0.5g

Sour Tsunami Gio Cartridge 0.5g

Wedding Cake Cartridge 1g

Wedding Cake, also known as &quot;Triangle Mints #23,&quot;&nbsp;is a potent type of <a href="https://www.leafly.com/strains/lists/category/hybrid">indica-hybrid marijuana strain</a> made by crossing <a href="https://www.leafly.com/strains/triangle-kush">Triangle Kush</a> with <a href="https://www.leafly.com/strains/animal-mints">Animal Mints</a>. Fun fact: In Canada, this strain is known as <a href="https://www.leafly.com/strains/pink-cookies">Pink Cookies</a>. The Wedding Cake strain provides <a href="https://www.leafly.com/strains/lists/effect/relaxed">relaxing</a> and <a href="https://www.leafly.com/strains/lists/effect/euphoric">euphoric effects</a> that calm the body and mind. This strain yields a rich and tangy flavor profile with undertones of <a href="https://www.leafly.com/strains/lists/flavor/spicy-herbal">earthy pepper</a>. Medical marijuana patients choose Wedding Cake to help relieve symptoms associated with <a href="https://www.leafly.com/strains/lists/condition/pain">pain</a>, <a href="https://www.leafly.com/strains/lists/condition/insomnia">insomnia</a> and <a href="https://www.leafly.com/strains/lists/condition/lack-of-appetite">appetite loss</a>. Consumers with a low THC tolerance should enjoy this strain with an extra slice of care due to its high THC content. Wedding Cake has soared in popularity over the years and was named <a href="https://www.leafly.com/news/strains-products/leafly-2019-strain-of-the-year">Leafly Strain of the Year</a> in 2019.<h2>Wedding Cake growing info</h2> Wedding Cake is a popular strain choice for both intermediate and advanced growers. This strain can be grown indoors and outdoors. You can expect a flowering time of 7-9 weeks. When grown outside, Wedding Cake will finish between September through October. This strain offers an average yield.

Wedding Cake, also known as "Triangle Mints #23," is a potent type of indica-hybrid marijuana strain made by crossing Triangle Kush with Animal Mints. Fun fact: In Canada, this strain is known as Pink Cookies. The Wedding Cake strain provides relaxing and euphoric effects that calm the body and mind. This strain yields a rich and tangy flavor profile with undertones of earthy pepper. Medical marijuana patients choose Wedding Cake to help relieve symptoms associated with pain, insomnia and appetite loss. Consumers with a low THC tolerance should enjoy this strain with an extra slice of care due to its high THC content. Wedding Cake has soared in popularity over the years and was named Leafly Strain of the Year in 2019.Wedding Cake growing info Wedding Cake is a popular strain choice for both intermediate and advanced growers. This strain can be grown indoors and outdoors. You can expect a flowering time of 7-9 weeks. When grown outside, Wedding Cake will finish between September through October. This strain offers  an average yield.

Wedding Cake

aka Triangle Mints #23, Pink Cookies

Concentrate Storage

The G Pen Wax Wallet is a convenient and discrete way to store your concentrates.

Wax Wallet

Miscellaneous

Custom "G Pen" Medium 4-Piece Grinder by Santa Cruz Shredder featuring:

• Patented tooth design to cut multiple ways
• Superior, knurled grip for easier rotation
• High quality, ISO Certified magnets for consistent, reliable lid closure
• Ultrasonically cleansed to achieve fully contaminate-free, Medical-Grade quality 
• Matte anodized finish for true scratch-resistant protection and durability
• T304 Micronic, precision-woven, non-fraying stainless steel screen 
• Color: Black
• Dimensions: 2 1/8" Diameter
• Made in Santa Cruz, CA, U.S.A.

Santa Cruz Shredder x G Pen Medium 4-Piece Grinder

Custom "G Pen" Medium 4-Piece Grinder by Santa Cruz Shredder

Portable Vaporizers

Micro in size yet monumental in capability, the Original microG is a functional anomaly and universally-renowned classic for discreet, easy, on-the-go vaporization of essential fluids.

Original microG

The Original microG is a functional anomaly and universally-renowned classic for discreet, easy, on-the-go vaporization of concentrates.

The G Pen Elite is an ergonomically designed portable convection vaporizer, featuring a full LED display with temperature control, battery life indicator, and all-ceramic heating chamber.

The G Pen Elite boasts the largest fully ceramic chamber on the market, with a revolutionary 360 ceramic heating element that provides fast and even convection vaporization of ground material from all sides. With the capability of setting any desired temperature between 200° - 428°F (93° - 220°C), users can experiment with low temperature true vaporization to explore optimal flavor profiles. This innovative technology opens up an entirely new vaporizing experience with unrivaled performance, taste, and effects.

Powered by a combination of the highest grade lithium-ion battery and smart-chip technology, The G Pen Elite is a high-performance vaporizer that sustains battery life for extended use.  Designed and engineered for portability, the G Pen Elite is the perfect marriage of form and function, making it the ideal solution for efficient vaporization on the go.

G Pen Elite Vaporizer

The G Pen Elite is an ergonomically designed portable convection vaporizer for ground material that is the ideal solution for vaping on the go.

Roam Vaporizer

The G Pen Connect is a revolutionary alternative to conventional concentrate consumption that heats to temperature within five seconds of activation to deliver high-density, quality vapor production without the hassle of a torch and exposed nail. Powered by a ceramic heating element and featuring patented reverse airflow technology, the G Pen Connect vaporizes concentrates evenly and efficiently, and pairs with any glass-on-glass water piece to deliver smooth and powerful draws.

G Pen Connect Vaporizer

Smoking Accessories

G Pen Gio Travel Case

G Pen DASH

G Pen Hookah

Vape pens

G Pen Yellow Lemonade

Founded on the principles of performance and user-preference, the G Pro Herbal Vaporizer features three variable temperature settings, enabling a uniquely-fitted vaping experience.

Durable in design and sophisticated in aesthetic, the G Pro's internal structure is comprised of a heavy duty, stainless steel heating chamber that releases the active ingredients in botanicals without the harmful byproducts caused by traditional methods.

The first release in the advanced G Pro Series, the G Pro Vaporizer produces pure vapor for optimum flavor, establishing a new standard of excellence across the vaporizer industry.

G Pro Vaporizer

The G Pro Herbal Vaporizer features three variable temperature settings, enabling a uniquely-fitted vaping experience.

An intricately designed roadmap of Long Beach is showcased on the G Pen and inside perimeter of the box, personalizing the collaboration with areas sentimental and nostalgic to the icon.

Fully customized including a Snoop Dogg signature engraving, The Snoop Dogg | G Pen Ground Material Tank is comprised of a stainless steel outer encasement, a scientifically-hardened glass sleeve, and the tank, itself, wherein ground material are housed and activated.

Snoop Dogg G Pen Ground Material

With Snoop Dogg signature engraving, this is the first G Pen in a collection of upcoming releases designed by Snoop himself, the Double G series.

Introducing the ﻿G Slim Series, a new line of lightweight technology that combines the luxury of portability with the benefit of affordability.

Sleek in form, with simplicity in operation, the G Slim Vaporizer provides high-performance functionality in a compact apparatus.

Each G Slim comes equipped with a G Slim Tool, Wireless USB Charger, and an On/Off feature to safeguard against inadvertent activation.

G Slim Vaporizer

The G Slim Vaporizer provides high-performance functionality in a compact apparatus.

G Pen Concentrate Pen 

GPen x Cookies Nova LXE Vaporizer

Sleek in form, with simplicity in operation, the G Slim Ground Material provides high-performance functionality in a compact apparatus.

Each G Slim comes equipped with a G Slim Tool, Wireless USB Charger, and an On/Off feature to safeguard against inadvertent activation.

G Slim Ground Material

The G Slim Ground Material combines the luxury of portability with the benefit of affordability.

Sleek in form and specific in purpose, the G Pen Vaporizer is intended for use with thicker viscosity fluids and is a must-try for all Original microG enthusiasts.

A complete set, the G Pen Vaporizer includes all components required for immediate startup.

G Pen Dual Quartz Vaporizer

This vaporizer features a robust tank system equipped with a dual quartz heating coil for an unimpeded aroma.

Grenco Science is proud to announce their latest collaboration with BADWOOD, and up-and-coming streetwear brand, started by young Los Angeles artist, Natalie Wood. The "FEELS GOOD TO BE BAD" G Pen Elite (For Ground Material) is emblazoned with original yet distinct BADWOOD artwork.

Each kit comes inside a commemorative make-up vanity box with a clutch bag featuring the now-iconic "BADWOOD SKI MASK" logo, customized accessories including a compact mirror, a bottle opener grinder card, miniature permanent marker, rolling tray, temporary lip tattoos, and adhesive bandages, making it the perfect kit for a girl's night out.

Each BADWOOD G Pen Elite Vaporizer comes standard with a USB charging cable, G Pen Tool, and cleaning brush. Experience quick and easy vaporization of ground material on-the-go. See how it "FEELS GOOD TO BE BAD" with the limited-edition BADWOOD G Pen Elite Vaporizer.

Badwood G Pen Elite Vaporizer

The BADWOOD G Pen Elite is a portable convection vaporizer for ground material that is the ideal solution for vaping on-the-go.

Grenco Science is honored to announce the release of the Phil Frost x Burton G Pen Elite, a long-awaited collaboration which has been in the works for over three years. As an admirer and avid collector of New York artist Phil Frost’s artwork, G Pen founder, Chris Folkerts, visited Frost’s studio at an undisclosed location to acquire a 20-piece luggage art collection, which sparked the original inspiration for the eventual collaboration. Burton Snowboards, an industry-leading brand and previous collaborator with G Pen, served as the perfect fit for making this three-way collaboration a reality.  Packaged within a miniature suitcase replica of the original artwork, the Phil Frost x Burton G Pen Elite is dressed with Frost’s distinct design aesthetic and is part of a larger capsule collection which includes a full line of limited-edition Burton travel accessories and snowboard.  

The Phil Frost x Burton G Pen Elite is an ergonomically designed portable convection vaporizer, featuring a full LED display with temperature control, battery life indicator, all-ceramic heating chamber, and comes with the all-new G Pen Elite Charging Dock and custom Phil Frost x Burton G Card.

The Phil Frost x Burton G Pen Elite boasts the largest fully ceramic chamber on the market, with a revolutionary 360 ceramic heating element that provides fast and even convection vaporization of ground material from all sides. With the capability of setting any desired temperature between 200° - 428°F (93° - 220°C), users can experiment with low temperature true vaporization to explore optimal flavor profiles. This innovative technology opens up an entirely new vaporizing experience with unrivaled performance, taste, and effects.

Powered by a combination of the highest grade lithium-ion battery and smart-chip technology, The Phil Frost x Burton G Pen Elite is a high-performance vaporizer that sustains battery life for extended use. Designed and engineered for portability, the Phil Frost x G Pen Elite is the perfect marriage of form and function, making it the ideal solution for efficient vaporization on the go.

Phil Frost x Burton G Pen Elite Vaporizer

Grenco Science is proud to announce their latest collaboration with BADWOOD, and up-and-coming streetwear brand, started by young Los Angeles artist, Natalie Wood. The "FEELS GOOD TO BE BAD" G Pen Elite (For Ground Material) is emblazoned with original yet distinct BADWOOD artwork.

Each kit comes inside a commemorative make-up vanity box with a clutch bag featuring the now-iconic "BADWOOD SKI MASK" logo, customized accessories including a compact mirror, a bottle opener grinder card, miniature permanent marker, rolling tray, temporary lip tattoos, and adhesive bandages, making it the perfect kit for a girl's night out.

The BADWOOD microG is packed into a custom, smell-proof resealable bag with a microG USB charger, G keychain and microG tool, silicon mouthpiece sleeves, and microG tanks for liquid and ground material, along with a brand-new tank for concentrates, which now features an upgraded quartz rod for smoother, longer lasting flavor.

Badwood microG Vaporizer

The BADWOOD microG is a functional anomaly and universally-renowned classic for discreet, easy, on-the-go vaporization of concentrates & more.

Micro in size yet monumental in capability, this next generation microG Vaporizer features improved durability and function, while still maintaining the fundamental makeup integral to the Original microG.  Now shipping with the microG Tank with Quartz, for longer-lasting and improved flavor from concentrates.


Ideal for fluids medium to thick in viscosity, a total of four microG Quartz Tanks are standardly included within each box set.

microG Vaporizer with Quartz

The microG is a functional anomaly and universally-renowned classic for discreet, easy, on-the-go vaporization of concentrates & more.

Vaporizer Accessories

G Pen Roam Vaporizer Black

Glass Adapter Female 10mm

Glass Adapter Male 18mm

Connect Glass Adapter Male 14mm

Roam - Replacement Glass Tube - Black

The G Wall Adapter™ is designed for compatibility with all versions of g pen, g slim, g pro, and microG USB chargers.

G Wall Adapter™

Highly reliable and backed with a 1-year warranty, the G Pen Wireless USB Charger™ adds convenience to charging, enabling functionality with any compatible USB outlet, including most laptop computers.

G Pen Wireless USB Charger™

The G Pen Wireles USB Charger™ adds convenience to charging, enabling functionality with any compatible USB outlet.

G-Pen Gio Adapter

Weed grinders

1 G Card is standardly included within each G Pro Ground Material Vaporizer.

G Card

A functional grinder, the G Card utilizes a multi-level steel surface to break down dried leaves.

Custom "G Pen" Medium 2-Piece Grinder by Santa Cruz Shredder featuring:

• Patented tooth design to cut multiple ways
• Superior, knurled grip for easier rotation
• High quality, ISO Certified magnets for consistent, reliable lid closure
• Ultrasonically cleansed to achieve fully contaminate-free, Medical-Grade quality 
• Matte anodized finish for true scratch-resistant protection and durability
• Color: Black
• Dimensions: 2 1/8" Diameter
• Made in Santa Cruz, CA, U.S.A.

Santa Cruz Shredder x G Pen Medium 2-Piece Grinder

Custom "G Pen" Medium 2-Piece Grinder by Santa Cruz Shredder

The G Pen Connect is a revolutionary alternative to conventional concentrate consumption that heats to temperature within five seconds of activation to deliver high-density, quality vapor production without the hassle of a torch and exposed nail.  Powered by a ceramic heating element and featuring patented reverse airflow technology, the G Pen Connect vaporizes concentrates evenly and efficiently, and pairs with any glass-on-glass water piece to deliver smooth and powerful draws.  

Designed with three temperature settings as well as an extended draw mode, the Connect tailors to each user’s flavor and heat preferences while accommodating a wide variety of concentrates.  The G Pen Connect Battery is packed with 850 mAh of power and uses an easy, snap-in magnetic connection for quick and effortless setup. Although small, the device is capable of driving several back-to-back sessions while supporting pass-through charging whenever needed. 

The G Pen Connect offers compatible glass-on-glass attachments in 10mm*, 14mm and 18mm*, making it a well-suited partner to any female-jointed water piece. A spring-loaded carb release button creates instant airflow, allowing the chamber to be effortlessly cleared. Although perfect for home use, each G Pen Connect kit comes standard with a hemp travel pouch, making storage and transportation just as easy as using the Connect itself.

We are located in Germantown/the Greater Washington Area in the shopping center at the intersection of Germantown and Wisteria Rd!

We pride ourselves on offering top-tier service & patient consultations, alongside Maryland's high-quality natural medicine.

Zen Leaf - Where Nature Meets Medicine

@zenleafdispensaries

Zen Leaf - Germantown

G Pen Connect Vaporizer Black

Introducing the G Pen Roam, an all-in-one portable vaporizer intuitively designed to provide water-filtered concentrate vaporization on-the-go.  Featuring a spill-proof, self-contained borosilicate glass hydrotube, a fully Quartz tank, and powerful 1,300mAh Lithium-Ion Battery, the G Pen Roam heats to temperature within seconds of activation to deliver smooth and flavorful draws with ease.


The G Pen Roam tailors to each user’s flavor and heat preferences through a digital temperature control and LED display ranging from 400° - 800°+F (204° - 427°+C), along with a haptic feedback feature that indicates when the device is ready for use.  Designed with strict attention to discrete portability, the Roam is encased within a light yet durable aluminum alloy shell which fully shelters the Quartz tank and glass water tube. Passthrough technology allows for the device to be used while plugged in, and all parts in connection to the vapor air path can be easily disassembled and cleaned.


Each G Pen Roam complete kit comes standard within a Hemp Travel Case, with room for two concentrates jars and a pocket for accessories which include a micro USB Charging Cable and G Pen Tool for loading of concentrates.

G Pen ROAM - Black

Curaleaf Airpark is now Curaleaf Gaithersburg Montgomery Village. We moved to 10011 Stedwick Rd, Gaithersburg, MD 20886



Curaleaf - Gaithersburg (Montgomery Village)

Cookies x G Pen Concentrate Vaporizer

The newest addition to Grenco Science’s portfolio of dried herb vaporizers, the G Pen Dash brings supreme functionality to the palm of your hand in a powerful, ultra-discreet, lightweight and affordable device.  Featuring a glass glazed stainless steel heating chamber with three temperature settings (375F/190C, 401F/205C, and 428F/220C), the G Pen Dash fits in any sized pocket and is perfect for on-the-go.
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Combined with a clean air source and integrated air path, experience unsurpassed flavor and vapor production from your favorite strains. Other key elements include an ergonomically designed chamber opening for convenient loading and a magnetically attached mouthpiece that can be taken apart for easy cleaning and maintenance.
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The G Pen Dash  also features haptic feedback and a smart button with three LEDs to indicate heat level and battery life.  With pass-through charging capability via Micro-USB and automatic shut-off, the G Pen Dash maximizes battery life and usability on every charge.

BEYOND / HELLO is a medical cannabis dispensary in the Commonwealth of Virginia! At Beyond / Hello, our commitment is to provide best-in-class care to our patients. All of our products are grown and manufactured in Virginia with the highest possible quality standards. We believe in going beyond the transaction to give our patients the best medical cannabis service and product experience possible.



BEYOND / HELLO is the trade name for Dalitso, LLC (“Dalitso”), the Northern Virginia-based medical cannabis pharmaceutical processor awarded conditional approval by the Virginia Board of Pharmacy. Dalitso is majority-owned by Jushi Holdings, Inc. (“Jushi”), a US-based multi-state cannabis operator founded in 2018 with a mission to create an integrated global community of wellness, mindfulness, and connections through superior quality cannabis and hemp-derived products.

BEYOND / HELLO - Manassas

Dash

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G Pen

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