Pubdate: Sun, 05 Apr 2020
Source: New York Times (NY)
Copyright: 2020 The New York Times Company
Author: Gary Greenburg


The retail showroom of INSA, a farm-to-bong cannabis company in western 
Massachusetts, is a clean industrial space on the first floor of a four-story 
brick building in the old mill town Easthampton. When I visited recently, 
before the coronavirus shut down recreational sales and forbade crowds, the 
crew of eight behind the glass display cases looked a lot like the staff 
you'd see dispensing lattes at Starbucks or troubleshooting iPads at the 
Genius Bar: young, racially diverse, smiling. They were all wearing black 
T-shirts with the INSA motto, "Uncommon Cannabis." Standing in line with me 
were a white-haired couple leaning on canes; a 40-something woman in a black 
pantsuit, who complained that the wait would be longer than her lunch break; 
a bald man in a tweed jacket; and a pair of women in perms and polyester 
discussing the virtues of a strain called Green Crack. We were all waiting at 
a discreet distance from the counter, as you would at the bank, for the next 
available "!

I got Ben, who described for me the wares that fill the cases like
rings and watches in a jewelry store: waxes and dabs and oils and buds
and edibles, most of them, he said, processed in a lab and kitchen on
the other side of the wall behind him, using weed grown on the upper
three floors. He sounded a little apologetic when he told me that
while he knew why the bud I was pointing to was called Peyote Critical
- "It speaks a little bit to its parentage, Peyote Purple and Critical
Kush" - he hadn't tried it, so he wasn't entirely sure how it would
affect me.

Ben took me around a corner to another glass case, this one displaying
vaporizers in different shapes and sizes. He pulled a box off a shelf
behind him. It was a $35, 350-milligram disposable vape pen loaded
with Jack Herer, a strain named for a legendary cannabis activist. If
I bought this, he said, I should "resist the temptation to take big
rips - four seconds at the max, then pull that pen away and inhale to
get a nice full set of lungs." Ben felt more certain about the effects
of Jack Herer than Peyote Critical, especially after he took a look at
the label. "The primary terpene in here is limonene," he said, which
should make me "energetic and uplifted." But there were more terpenes
at work, Ben said. "You've got pinene coming in at 2.83 percent, good
for memory retention and alertness, and then myrcene, which should
help balance out some of the raciness from the limonene. Myrcene is
good for your brain's absorption of metabolizing THC but also has
relaxing, sedating qualities."

Terpenes are the compounds that give the different strains of cannabis
their distinctive aromas. According to Ben, they are also what
"modulates the high"; each variety of weed has its own terpene
profile, which helps account for one of the riddles of cannabis: that
even if two strains share the same psychoactive molecule - 9-delta
tetrahydrocannabinol, or THC - one can make its users collapse in
gales of laughter while the other produces paranoia and yet another
seems (at least for a moment) to reveal the secrets of the universe.
INSA is confident enough that it has figured out which kind of high
each of its products will deliver that it offers a
customer-satisfaction guarantee if the experience it advertises
doesn't match what the user gets.

The company, which was founded in 2013, was named for the two main
varieties of cannabis: indica and sativa. Before budtenders and
black-market dealers knew anything about terpenes, they told their
customers that indica strains were sedating and sativa strains
euphoric. But scientists have shown that while indica plants tend to
be short and bushy and quicker to mature and sativas tall and spiky
and slower, those differences do not correspond to any kind of
consistent differences in the chemical profiles of the plants. "We've
been trying to re-educate our consumers," Peter Gallagher, chief
executive of INSA, told me.

His firm isn't the only one changing the way cannabis is marketed.
Wherever weed is legal, companies are claiming that they have figured
out how to produce a bespoke high. The promises are specific - one
California company, MedMen, offers its customers "a surefire explosive
orgasm" - and backed by scientific-sounding terminology like "terpene
profile" and "cannabinoid breakdown." Some of the research these
companies cite to support what they are advertising has been published
and peer-reviewed, but much of the recent work on the effects of
cannabis has been conducted privately, and the companies are guarding
their results as trade secrets. MedMen canceled my interview with its
chief executive when it learned that I wanted to talk about the
science behind its claims.

The cannabis business, then, has arrived at a critical moment. Now
that pot has become something like a regular consumer product,
customers are increasingly seeking the same "proven consistency" they
expect from potato chips and soap. The financial stakes are clear:
Despite lingering prohibitions in 17 states, legal cannabis is already
an $8 billion industry in the United States. Domestic sales of
alcohol, humankind's other favorite intoxicant, topped $200 billion
last year. But to make cannabis as popular as booze requires solving
that original problem: It's hard to imagine millions of people
becoming new recreational users without being able to promise them
that the product they're spending money on - the average purchase at
INSA is around $90 - will give them the effect they want.

Companies like MedMen and INSA may have decided that they've already
cracked the code, but it remains to be seen whether that's even
possible with a plant as complex as cannabis. What those companies
know for certain, however, is that the billion-dollar race to find out
has already begun.

Cannabis has been consumed in one form or another for thousands of
years, but it wasn't until 1964 that a team led by the Israeli
researcher Raphael Mechoulam identified THC as the molecule that got
users high. By then, cannabis prohibition had been widespread for more
than 25 years, creating formidable bureaucratic obstacles to
researchers who wished to work with the plant. But Mechoulam kept at
it, isolating another cannabinoid, cannabigerol (CBG), and mapping the
structure of cannabidiol (CBD). All these chemicals, it turned out,
had a role to play in the body's response to cannabis. In 1998,
Mechoulam coined the term the "entourage effect" to describe the
complicated interplay between cannabinoids and the body's own
neurotransmitters in determining the drug's effects.

While Mechoulam was still conducting his research, an American
neuro-logist named Ethan Russo was zeroing in on terpenes as a major
source of the variability in the effects of different strains of weed
- or "chemovars," as he prefers to call them. Not long ago, I went to
visit him at his home on an island in Puget Sound, where he walked me
through his past two decades of trying to conduct conventional
research on this unconventional subject.

Russo told me that while he had been interested in botanical
treatments since reading Euell Gibbons's "Stalking the Healthful
Herbs" while still in his teens, he knew little about cannabis as a
medicine. That began to change when patients in his private practice
in Montana began to report success with plant remedies, including
cannabis, for chronic conditions like migraines. Intrigued by the
results they reported, he began to study herbal medicine in earnest.
Eventually, he wrote a textbook on the subject, which included a
chapter on cannabis.

In 1996, while writing the book, Russo was introduced to aromatherapy
with essential oils. "I realized how evocative they were," he told me.
He also knew that the same molecules that gave essential oils their
punch - the terpenes - were present in cannabis, and that aficionados
often said that "the nose knows," meaning that a strain that smelled
good to a user was likely to yield felicitous results. He began to
suspect that the terpenes "were having a major modulatory effect on
THC" and thus held a key to understanding the wildly variable effects
of the drug.

He received Food and Drug Administration approval to run a clinical
trial of cannabis as a treatment for migraines, but the National
Institute on Drug Abuse, which must approve such research with illegal
drugs, refused to sign off. The bureaucratic resistance "really
stimulated my sense of adolescent rebellion," he told me, and he
decided to investigate terpenes' role in the entourage effect on his
own - legally, but using a method that, while once the backbone of
medical research, had fallen into disrepute: self-experimentation.

He ordered terpenes from chemical-supply houses and, along with a few
friends, began to blind-test them by transferring small amounts of
them from coded bottles into a vaporizer designed to minimize odors
and keeping track of their effects. In 2004, he went to Amsterdam,
where he was able to obtain pure THC legally, pair it with different
combinations of terpenes and record the effects they had on a group of

Russo's research was not without its problems. Scents could not be
totally eliminated, the effects of THC couldn't be successfully
blinded and the prodigious daily cannabis intake of at least one
participant made him a poor judge of the effects of individual
THC/terpene combinations. Still, Russo found consistent correlations.
THC alone, he found, lowered mood and distorted perception, and proved
over all to be "really hard to function on." He recalled one session
in which, as it turned out, he had inhaled pure THC. "It was my turn
to make dinner that night, and it was like: 'Oh, God, I'm not sure I
can do this. Where's the knife? What do I need to do next?' Everything
was so hard." But throw in pinene, the terpene that gives a pine woods
its scent, and "all of a sudden that's gone. You're clear. You have no
problem remembering anything." Limonene, one source of citrus's
distinctive odor, also cured the THC blues, "making this unpleasant
thing vibrant and alive and electric." On the other hand, some
terpenes just made things worse - like myrcene, an oil that smells a
little like cloves and is present in high concentrations in hops, on
which, Russo recalled, "I can't function, I can't think, I can't move."

In 2010, at a conference honoring Mechoulam, Russo presented a paper
called "Taming THC," which compiled more than 400 studies that
strengthened the case for the role terpenes played in the variable
effects of pot. It did not directly mention Russo's D.I.Y. research,
but a careful reader could find observations about the effects of
specific combinations on memory, cognition and mood - that
myrcene-heavy strains may produce "couchlock," that pinene might be an
"antidote" to the negative effects of THC - that were at least as
indebted to Russo's experiments in Amsterdam as to anything in the
scientific literature. The paper was published the following year in
the prestigious, widely read British Journal of Pharmacology.

Russo was not the only cannabis researcher studying terpenes, and
"Taming THC" was not the first scientific article to speculate about
their role in cannabis intoxication. It was also meant to be the
starting point for more rigorous research into terpenes, not the final
word on their effects. But the article, with its concise charts of
correlations between terpenes and drug effects, came along at a
crucial moment in the history of pot: By 2011, 15 states had approved
medical marijuana, and Colorado and Washington were on the verge of
making the drug legal for recreational use.

A new industry was ready to burst into being, and here, in the
legitimate academic press, was a paper providing a map to what Russo
called a "pharmacological treasure trove." If the paper's promises
held up, a company could even take aim at the most tempting prize of
all: the vast number of Americans who had never tried weed before, and
others who had aged out of it but might be brought back on board. For
that market, it wasn't enough for cannabis to be legal; the drug had
to be as predictable as a pre-dinner martini.

"Taming THC" laid out an ambitious scientific agenda for anyone
seeking to further test the paper's claims: "high throughput
pharmacological screening," animal experiments to specify mechanisms
of action, molecular studies to establish just how terpenes and
cannabinoids interact, animal-behavior studies, brain-imaging research
and human clinical trials. Nearly a decade later, this agenda, which
is modeled on pharmaceutical drug development, remains

Recently, however, a few companies in the United States and Canada
have begun an aggressive investigation into the entourage effect,
though they are forgoing many protocols of the pharmaceutical
industry. Last year, I met Jon Cooper, the founder of a company called
Ebbu, at a co-working space in Denver. Cooper had been toying with the
idea of a cannabis start-up ever since Colorado legalized the drug,
but he was deterred by his own history with pot. "I'd had some awesome
experiences that I wished I could have all the time," he told me. But
he'd also had "some completely horrific experiences that I never ever
wanted again." Cooper says he couldn't sell something he didn't
believe in; but what if he could figure out how to "capture in a
bottle the awesome experience, so every store I walk into, I could get
that same experience. Wouldn't that be amazing?"

A year after Cooper started Ebbu in 2013, he approached Brian Reid,
who was running a lab at the University of Colorado's school of
pharmacy, hoping they could collaborate. Reid's specialty was exactly
the "high throughput" screening Russo had called for, in which
algorithms are used to quickly determine which potential drugs would
interact with which cellular targets. The university's lawyers,
worried about a possible loss of federal funding, nixed the deal, but
Reid eventually decided to go to work for Ebbu directly; in 2016, he
became its chief science officer.

Reid began to, in Cooper's words, "crank data." As long as he did not
ask for government money, he could do high-grade pharmaceutical
research using human subjects without the usual regulatory scrutiny.
Ebbu went straight into human trials of the most likely drivers of the
entourage effect. That's not as reckless as it might appear. Reid
points out that no one is known to have ever died from an overdose of

Colorado law forbids cannabis companies to give away products, so Ebbu
offered samples for $1 to people who agreed to fill out an online
questionnaire about their experiences. Their responses were correlated
with the chemical profiles of the extracts in order to gather evidence
about which combinations produced which effects. In June 2016, the
company announced that it had identified eight terpenes and three
cannabinoids that modify the effect of THC in a predictable way. The
company said this was a "significant milestone" in its quest to
develop formulations that would "enable consumers to choose a desired

In late 2016, Ebbu started distributing a formulation called Genesis
to dispensaries around Colorado. It yielded a "really happy, focused
high," Cooper told me, one "that was extremely blissful." It did not
cause anxiety or make its users stupid or sleepy or goofy: "They could
always communicate, they could talk to their kids, they were able to
do all these things and function while still having this amazing
experience." Cooper loved it. His wife and his brother-in-law and his
friends loved it. The consumers who bought Genesis loved it so much,
according to Cooper, that it gained a "cult following" - people who
"stopped consuming all other products and started consuming only Genesis."

Still, Cooper kept funding more research. "Every single dollar that
was coming in the door," he said, "I was investing in science and
intellectual property." His approach seemed vindicated in the fall of
2018, when Canopy Growth, the largest cannabis conglomerate in Canada,
bought Ebbu for a reported $330 million in cash and stock. According
to Bruce Linton, the founder and former chief executive of Canopy, it
wasn't Genesis or any other product that made Ebbu such an attractive
buy. It was the data the company had cranked out about breeding,
extracting, formulating and using cannabis, about what consumers
wanted and about which combinations of chemicals could be counted upon
to give it to them. The value, according to Linton, was obvious:
Whether customers want to go to a comedy club, or listen to music, or
just "diminish the anxiety of the workweek," they're all "buying
outcomes," which Canopy, using the scientific knowledge it bought from
Ebbu, could "containerize." (Linton left Canopy last year as part of a
shake-up at Constellation Brands, the multinational corporation with a
controlling stake in Canopy.)

Russo's dream of open scientific exchange, however, has remained
elusive. The biggest companies in the cannabis world are keeping their
research under wraps, and without the necessity of answering to
regulators, it's likely to stay that way. Ebbu did release some
findings from its consumer research at the 2018 meeting of the
International Cannabis Research Society, where it presented a poster
called "Cannabinoid and Terpene Formulations Elicit Distinct Mood
Effects." The poster shows correlations between different mixtures and
consumer experience, using terms like "active" and "chill" or
"conflicted" and "Zen." But the poster, which like all posters was not
peer reviewed, did not explain how those categories were defined or
which terpenes or cannabinoids were in the products, nor did it
disclose the data underlying the findings. Several participants
thought the poster was contrary to the spirit of the conference, which
was about open scientific inquiry. To them, it looked like nothing
more than an advertisement.

As more of the compounds in cannabis are isolated, a few companies are
looking at ways to eliminate one stubborn source of variability: the
plants themselves. Ebbu's intellectual property includes a patent for
using an inkjet printer to spit out cannabinoids and terpenes in
precisely measured ratios determined by the user. Brought in from the
black-market wilderness by deep-pocketed, consumer-savvy companies,
cannabis may become just another designer drug.

At INSA, the Jack Herer vape oil may be named after a known strain,
but it is not made by extracting or distilling a Jack Herer plant.
Rather, it's formulated in INSA's lab to emulate the chemical profile
of that variety. The company can obtain its THC and other cannabinoids
from any cannabis plant, and it buys its terpenes from outside
suppliers. Peter Gallagher says INSA does not hide the fact that its
vape oils are manufactured products that, like pharmaceutical drugs,
are created by isolating and combining compounds. Indeed, he envisions
an exciting future when "you could come into the store and build your
own blend of certain proportions of cannabinoids and terpenes."

Recent research has shown that it's possible to grow cannabinoids from
yeast, cutting out the need for any horticulture at all - a prospect
that has already attracted industry attention. After all, greenhouses
take up more space than laboratories, molecules are easier to patent
than plants and once you figure out how to do it all in a petri dish,
you don't have to worry about weather or insects. Ethan Russo,
however, thinks producers should be cautious in taking this approach.
"The idea that you're going to bottle this up and eliminate cannabis"
is a bad one, he told me. He doesn't doubt that a few of the more than
500 chemicals in the plant can be identified as critical to its
effects, but, he says, "that doesn't tell the whole story" any more
than the flute and violin lines alone can convey the entire impact of
a symphony. What's missing is the way the entourage works together not
only to create the effects of the plant but also to provide a
counterpoint to its potential dangers. "It's vastly preferable to take
the effort, time and money to develop a specific chemovar of cannabis
that's going to do the same thing and do it better and demonstrably
more safely," he says.

At least one researcher is making that effort, with the help of some
willing human volunteers. For the past three years, a neuroscientist
named Adie Rae has designed the survey used to judge the winners of
the Cultivation Classic, an annual competition sponsored by an
alt-weekly in Portland, Ore. Cannabis competitions are common, but the
Cultivation Classic may be the only one that requires its judges to
spend an afternoon listening to a scientist talk about predictive
algorithms and blinded studies.

Last year, I joined Rae as she addressed a crowd of 160 people in a
conference room in downtown Portland. The participants had been handed
black zipper bags that contained a dozen tiny glass jars, each labeled
with a number and housing a single bud of locally sourced, organically
grown weed. Their mission, Rae explained, was to take a 48-hour
"tolerance break" and then, over the course of the next month, sample
each flower, paying careful attention to their psychological state
before, during and afterward. A four-digit PIN enclosed in their kits
would give them access to a website on which they were to rate the
extent to which the sample gave them the experience they wanted,
whether it made them sleepy or stimulated, sociable or introspective,
cognitively impaired or creative, if it gave them side effects like
redeye or anxiety, and if its aroma and appearance and taste were to
their liking.

Rae makes information on the chemistry of the winning plants and the
effects that users reported available on the Cultivation Classic
website. "We wouldn't take these data and hand them over to Monsanto
or some other corporate juggernaut," she says. "We want the folks who
have social-justice components in their workplaces, who are mindful of
the resources they use."

Her most recent findings might disappoint any cannabis company, large
or small. After she crunched the Cultivation Classic numbers, Rae
could not find strong correlations between any single terpene and the
high that resulted. "If we just look at the individual terpenes and
try to correlate them with any of our measures about the experience,
we have a total scatterplot," Rae told me. "It's like a shotgun. The
points are everywhere." She could reach only one conclusion: "There is
just no association with any singular terpene for any question we have."

Rae was neither surprised nor disheartened. After all, she explained,
the entourage effect relies on the interactions among hundreds of
chemicals, and the attempt to parse it is still in its infancy. "This
is a fishing expedition," Rae says. "Are there any meaningful
conclusions to be drawn at all? Is it all about what a person expects
from their experience? Is it all about their own endogenous
cannabinoid system? Is there any pattern whatsoever besides that THC
is intoxicating? We don't really know."

Not that she is about to abandon her research: A deeper analysis of
the interactions of terpenes and cannabinoids, which she plans to
perform, may yet yield correlations. Rae likens it to music,
suggesting that "terpenes might be the timbre of the experience, while
THC is the volume." She's also aware that the biggest confounding
factor in the attempt to parse the entourage is the person who is
hosting it. Someone who smokes a bowl at the end of a long day of
physical labor may well have a different experience if she smokes the
same pot with friends at a party or before she does yoga. Someone who
buys weed with a particular expectation may well have an outcome
shaped by that expectation. And perhaps most important, the
particulars of an individual's neurochemistry can change the way a
plant's chemicals affect the brain.

The best hope for someone seeking a predictable high may come directly
from users, who can inform one another about the virtues of particular
varieties - just as they did in the old days, only this time with help
from big data. Rae foresees an app that can tell a person what
cultivars are liked by people who liked what she liked, and for which
purposes. It wouldn't promise quite the "surefire" experience marketed
by some of the bigger cannabis companies, but it would be reasonably
reliable, as far as psychoactive substances go.

Of course, that would complicate the prospects of an industry that is
going all in on the idea that the entourage effect, whatever its
constituents and dynamics, can be unpacked and put to use in the
market. That doesn't bother Rae. In the end, she says, there's not
much point to taking drugs if the outcome is written on the label and
if the drug is not taken mindfully. "We have to understand that there
is always going to be some level of exploration," she told me. The
ongoing elusiveness of the entourage effect "is what's exciting,
because it's not necessarily telling us more about the plant; it's
telling us more about ourselves."

Rae's approach to cannabis is similar to that envisioned by Russo when
he put down his copy of "Stalking the Healthful Herbs" and started his
study of terpenes. But the future of the drug probably doesn't belong
to them - it belongs to companies like MedMen and Canopy and maybe,
one day, even Monsanto. Consumer capitalism is endlessly resourceful
at transforming almost any human desire into a standardized product on
the shelf. The smart money has already placed its bets, and the humble
cannabis plant can put up a fight for only so long.