CBG in Wisconsin

What CBG Is and Where It Comes From

The family tree starts with cannabigerolic acid. Three synthase enzymes compete for CBGA and convert it toward THCA, CBDA and CBCA, which become THC, CBD and CBC once heat removes the acid group. Whatever CBGA the enzymes never reached becomes CBG. That single branch point accounts for cannabigerol, cannabidiol, cannabichromene and tetrahydrocannabinol. Cannabinol sits outside it entirely, because CBN is not made by an enzyme at all.

CBG vs CBD

The split that actually matters on a label is major against minor. CBD is present in bred hemp at percentages; the minors are present at fractions of a percent, which is why they are listed in single or double digit milligrams while CBD is listed in the hundreds. That difference in abundance drives a difference in research volume too, since studying an abundant compound has always been easier. It is also why Pharmacokinetics of Non-Psychotropic Phytocannabinoids reports on the non-intoxicating cannabinoids as a group: for several of the minors there is not enough compound-specific human data to report separately. CBD and CBG compared covers that gap in more detail.

• Gummies: pre-measured, an easy daytime habit.
• Tinctures: adjustable amounts, faster under the tongue.
• Vapes: inhaled, so onset is quick and the effect is short.
• Paired with CBD: the two together for steady balance.

One Precursor, Three Branches

Cannabigerolic acid is where the plant’s cannabinoid chemistry begins. THCA synthase, CBDA synthase and CBCA synthase each take CBGA and convert it toward a different endpoint, and the balance between those enzymes is largely what a breeder is selecting for.

That is the entire explanation for why hemp bred for CBD holds so little of anything else. The enzymes finished the job. Cannabigerol in a finished plant is leftover starting material, not a product of the pathway.

CBN Is Made by Time, Not by an Enzyme

Cannabinol arrives by a different route. THC oxidizes as it is exposed to air, light and warmth, and the product of that reaction is CBN. Age and storage conditions drive it, which is why older material tests higher.

The consequence for a label is that CBN in a product was either allowed to form or deliberately produced. Either way it is downstream of THC rather than of CBGA, which puts it outside the family tree the other minors share.

CBC, the Least Discussed of the Three

Cannabichromene comes from CBCA, the third product of the CBGA branch point. It is non-intoxicating and it appears on far fewer panels than the other two, partly because it is present in small amounts and partly because it has attracted less commercial interest.

Its research base is thinner still. Where CBG has drawn a wave of preclinical work in recent years, CBC has drawn comparatively little, and the human literature is effectively empty.

That is worth stating plainly, because a panel listing four cannabinoids can read as four times the substance. It is not. It is four measurements, three of which rest on very little published work in people.

Names and Abbreviations Across the Family

Every one of these compounds has an acid form, written with an A: CBGA, CBDA, THCA, CBCA, CBNA. The acid is what the living plant carries and what an unheated product may still contain, and it is a different line on a certificate.

Then there are the varins, the shorter-chain versions marked with a V. Between acid forms, neutral forms and varins, a full cannabinoid assay can run to a dozen lines or more, which is a good thing: every extra line is one fewer assumption you have to make about what is in the container.

One habit is worth carrying out of all this. When two products list the same headline milligram figure, the one with the longer assay is telling you more, and the difference between them is usually a difference in what was tested for rather than in what the plant produced.

Frequently Asked Questions

Which minor cannabinoids are intoxicating?

Cannabigerol and cannabichromene are non-intoxicating. Cannabinol is generally described as at most weakly active and is not sold as an intoxicant. THC is the compound that carries intoxication in hemp, and it is the one panels report separately for that reason.

Do CBN or CBC show up on a drug test?

Screens target THC metabolites, so the minors are not what a panel looks for. The relevant question is whether the product is full spectrum, since that is where trace THC comes from regardless of which minor cannabinoid is on the front label.

Are minor cannabinoids listed on the same lab report?

They should be. A cannabinoid assay reports each compound the laboratory tested for as its own line, typically covering CBD, CBDA, CBG, CBGA, CBN, CBC and the THC forms. A report showing only two or three lines has tested for only two or three.

Are CBG, CBN and CBC dosed the same way?

No, and none of them has an established dose from human trials. Product servings are formulation choices, and they differ by compound and by brand, so comparing milligram figures across two different minors compares two unrelated decisions.

What makes a cannabinoid minor?

Abundance, not importance. A minor cannabinoid is one present in small amounts in the plant, which makes it harder to obtain and historically harder to study. The word describes supply rather than any property of the molecule.

Where does CBN come from?

From THC. Cannabinol forms as THC oxidizes over time, a process pushed along by air, light and heat. No enzyme is involved, which is why CBN is the odd one out in a family otherwise built from cannabigerolic acid.

Is CBC related to CBG?

Directly. Cannabichromenic acid is one of the three products enzymes make from CBGA, so CBC is a sibling of CBD and THC rather than a distant relation. It is the least discussed of the group and the least studied. CBC and CBG compared.

What are varin cannabinoids?

A parallel set with a shorter side chain, written with a V: CBGV, THCV, CBDV and CBCV. They arise from a different precursor acid and appear at very low levels in most hemp, which is why they show up on specialist panels rather than ordinary ones.

Which minor cannabinoid is best studied?

None of them approaches CBD. Among the three, cannabigerol has attracted the most recent preclinical attention, cannabinol has an older and thinner human record, and cannabichromene has the least of all. All three sit far behind the majors.

Do the minors appear together in one product?

Often, because they come out of the same extract. A full spectrum formula will carry several at whatever ratio the biomass produced, while a blended product sets the ratio deliberately. The panel is what distinguishes the two situations. CBG and CBN compared.