Cannabinoid Encyclopedia

Browse the encyclopedia

Research Library

Read focused reviews that answer specific cannabinoid questions and link directly to the studies behind each explanation.

Good places to begin

Start here

These pages answer the broad questions most readers ask first.

Complete index

Browse every page

87 source-linked guides in this section.

Focused research review 2-AG: what the research says

What evidence defines 2-AG biology, receptor pharmacology, metabolism, physiology, or safety-relevant mechanisms?

Focused research review Acidic cannabinoid precursor: what the research says

What evidence exists for acidic cannabinoid precursors such as CBGA, CBCA, THCVA, CBDVA, and CBNA?

Focused research review Anandamide: what the research says

What evidence defines anandamide biology, receptor pharmacology, metabolism, physiology, or safety-relevant mechanisms?

Focused research review Cannabinoid product contamination and formulation risk: what the research says

What evidence exists for contamination, labeling, formulation, or product-quality risks in cannabinoid products?

Focused research review Cannabinoids and cardiovascular risk: what the research says

Which cannabinoid evidence requires heightened review for cardiovascular risk?

Focused research review Cannabinoids and cognition/memory: what the research says

What evidence connects cannabinoids with cognition, memory, attention, or learning outcomes?

Focused research review Cannabinoids and immune modulation: what the research says

What evidence connects cannabinoids with immune modulation or immune-system outcomes?

Focused research review Cannabinoids and liver enzyme/hepatotoxicity: what the research says

What evidence connects cannabinoids with liver enzymes, hepatotoxicity, or hepatic safety monitoring?

Focused research review Cannabinoids and nausea/vomiting: what the research says

What evidence connects cannabinoids with nausea, vomiting, emesis, or antiemetic outcomes?

Focused research review Cannabinoids and pregnancy/pediatrics: what the research says

Which cannabinoid evidence requires heightened review for pregnancy, pediatric, or developmental contexts?

Focused research review Cannabinoids and psychiatric risk: what the research says

Which cannabinoid evidence requires heightened review for psychiatric risk, psychosis, anxiety worsening, depression, or suicidality?

Focused research review Cannabinoids and sedation/somnolence: what the research says

What evidence connects cannabinoids with sedation, somnolence, sleepiness, or next-day impairment?

Focused research review Cannabinoids and skin/dermatology: what the research says

What evidence connects cannabinoids with skin, dermatology, or inflammatory skin outcomes?

Focused research review Cannabinoids dependence and withdrawal: what the research says

What evidence connects cannabinoids with dependence, withdrawal, craving, or cannabis use disorder outcomes?

Focused research review CB1 and CB2 receptor pharmacology: what the research says

What evidence defines cannabinoid activity at CB1 and CB2 receptors?

Focused research review CB1 receptor neurobehavioral/metabolic: what the research says

What evidence connects CB1 receptor biology with neurobehavioral, reward, appetite, metabolic, pain, or cognition-related mechanisms?

Focused research review CB1 receptor pharmacology: what the research says

What evidence defines cannabinoid ligand binding, signaling, agonism, antagonism, allostery, or structural pharmacology at CB1?

Focused research review CB2 receptor immune/inflammation: what the research says

What evidence connects CB2 receptor biology with immune, inflammatory, microglial, neuroinflammatory, or pain-related mechanisms?

Focused research review CB2 receptor pharmacology: what the research says

What evidence defines cannabinoid ligand binding, signaling, agonism, antagonism, selectivity, or structural pharmacology at CB2?

Focused research review Does CBC help with inflammation?

What evidence connects CBC with inflammation-related or pain-related outcomes?

Focused research review How does CBC affect memory, mood, and thinking?

What evidence connects CBC with neurobehavioral, mood, neural stem cell, or neurogenesis outcomes?

Focused research review Does CBC help with pain?

What evidence connects CBC with pain-related outcomes?

Focused research review What do we know about CBC safety?

What evidence connects CBC with safety, tolerability, adverse-event, impairment, or formulation-specific outcomes?

Focused research review What does research say about CBC and skin health?

What evidence connects CBC with skin, dermatology, antimicrobial, or topical inflammatory outcomes?

Focused research review How does CBC interact with cannabinoid targets?

What evidence connects CBC with receptor, transporter, target, metabolic, or pharmacology mechanisms?

Focused research review Does CBD help with anxiety?

What evidence connects CBD with anxiety-related outcomes across human, animal, or mechanistic research?

Focused research review Can CBD interact with medications?

What evidence connects CBD exposure with drug-interaction mechanisms or safety-relevant outcomes?

Focused research review Does CBD help with pain?

What evidence connects CBD with pain-related outcomes?

Focused research review Does CBD reduce seizures?

What evidence connects CBD with seizure-related outcomes or epilepsy-related clinical endpoints?

Focused research review Does CBD help with sleep?

What evidence connects CBD with sleep-related outcomes?

Focused research review Can CBDA help with nausea and vomiting?

What evidence connects CBDA with nausea-related or inflammation-related outcomes?

Focused research review Does CBDV reduce seizures?

What evidence connects CBDV with seizure-related or neurodevelopmental outcomes?

Focused research review Does CBG help with anxiety?

What evidence connects CBG with anxiety, stress, mood, fear, or related neurobehavioral outcomes?

Focused research review What does research say about CBG, appetite, and metabolism?

What evidence connects CBG with appetite-related, weight, glucose, or metabolic outcomes?

Focused research review Does CBG help with inflammation?

What evidence connects CBG with inflammation-related or immune outcomes?

Focused research review Does CBG help with pain?

What evidence connects CBG with pain-related outcomes?

Focused research review What do we know about CBG safety?

What evidence connects CBG with safety, tolerability, adverse-event, impairment, or formulation-specific outcomes?

Focused research review What does research say about CBG and skin health?

What evidence connects CBG with skin, dermatology, or topical inflammatory outcomes?

Focused research review Does CBG help with sleep?

What evidence connects CBG with sleep-related outcomes?

Focused research review How does CBG interact with biological targets?

What evidence connects CBG with receptor, target, metabolic, or pharmacology mechanisms?

Focused research review Does CBN help with pain?

What evidence connects CBN with pain-related outcomes?

Focused research review What do we know about CBN safety?

What evidence connects CBN with safety, tolerability, sedation, adverse-event, or impairment outcomes?

Focused research review What does research say about CBN and skin health?

What evidence connects CBN with skin, dermatology, inflammatory, or immune-modulation outcomes?

Focused research review Is CBN good for sleep?

What evidence connects CBN with sleep-related outcomes?

Focused research review How does CBN interact with cannabinoid targets?

What evidence connects CBN with receptor, target, metabolic, or pharmacology mechanisms?

Focused research review Commercial and semi-synthetic cannabinoids: what the research says

What safety evidence exists for Delta-8 THC, Delta-10 THC, HHC, and related commercial cannabinoid formulations?

Focused research review DHEA/synaptamide: what the research says

What evidence defines DHEA/synaptamide biology, receptor or signaling mechanisms, metabolism, physiology, or safety-relevant mechanisms?

Focused research review Endocannabinoid enzyme: what the research says

What evidence connects FAAH, MAGL, DAGL, NAPE-PLD, ABHD6, ABHD12, COX-2, LOX, and CYP enzymes with cannabinoid biology?

Focused research review Endocannabinoids and endocannabinoid-like lipids: what the research says

What evidence defines endogenous cannabinoids and endocannabinoid-like lipids relevant to the encyclopedia?

Focused research review GPR119 cannabinoid target: what the research says

What evidence connects cannabinoids, endocannabinoids, or endocannabinoid-like lipids with GPR119 activity, binding, signaling, or physiology?

Focused research review GPR18 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with GPR18 activity, binding, signaling, or physiology?

Focused research review GPR55 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with GPR55 activity, binding, signaling, or physiology?

Focused research review LEA: what the research says

What evidence defines LEA biology, metabolism, physiology, or safety-relevant mechanisms?

Focused research review Minor cannabinoids: what the research says

Which safety, adverse-event, or impairment evidence exists for less-studied cannabinoids and commercial formulations?

Focused research review NADA: what the research says

What evidence defines NADA biology, receptor or TRP-channel pharmacology, metabolism, physiology, or safety-relevant mechanisms?

Focused research review Noladin ether: what the research says

What evidence defines noladin ether biology, receptor pharmacology, metabolism, physiology, or safety-relevant mechanisms?

Focused research review Non-canonical cannabinoid target: what the research says

What evidence connects cannabinoids with PPARs, 5-HT1A, glycine receptors, adenosine signaling, opioid cross-talk, or dopamine/glutamate/GABA systems?

Focused research review OEA: what the research says

What evidence defines OEA biology, receptor pharmacology, metabolism, feeding, metabolic physiology, or safety-relevant mechanisms?

Focused research review Oleamide: what the research says

What evidence defines oleamide biology, sleep-related physiology, receptor pharmacology, metabolism, or safety-relevant mechanisms?

Focused research review Orphan receptor cannabinoid targets: what the research says

What evidence connects cannabinoids or endocannabinoids with GPR55, GPR18, and GPR119?

Focused research review PEA: what the research says

What evidence defines PEA biology, receptor pharmacology, inflammation, pain-related mechanisms, metabolism, or safety-relevant mechanisms?

Focused research review Rare phytocannabinoids: what the research says

What evidence exists for rare phytocannabinoids such as CBL, CBLA, CBT, CBCV, CBGV, and related acidic precursors?

Focused research review SEA: what the research says

What evidence defines SEA biology, metabolism, physiology, or safety-relevant mechanisms?

Focused research review How does THC affect appetite and metabolism?

What evidence connects THC or dronabinol with appetite, anorexia, weight, or metabolic outcomes?

Focused research review How can THC affect the heart?

What evidence connects THC exposure with cardiovascular outcomes or cardiovascular risk markers?

Focused research review How does THC affect memory, mood, and thinking?

What evidence connects THC exposure with cognition, memory, attention, learning, or acute impairment outcomes?

Focused research review Can THC cause dependence or withdrawal?

What evidence connects THC exposure with dependence, withdrawal, craving, or cannabis use disorder outcomes?

Focused research review How does THC affect driving?

What evidence connects THC exposure with driving impairment or other safety-relevant performance outcomes?

Focused research review Can THC help with nausea and vomiting?

What evidence connects THC or dronabinol with nausea, vomiting, emesis, or antiemetic outcomes?

Focused research review Does THC help with pain?

What evidence connects THC with pain-related outcomes?

Focused research review How can THC affect mental health?

What evidence connects THC exposure with psychiatric risk, psychosis, anxiety worsening, depression, or suicidality?

Focused research review Does THC help with sleep?

What evidence connects THC with sleep-related outcomes?

Focused research review What do we know about THCA safety?

What evidence exists for THCA-specific safety, effect, or mechanism claims?

Focused research review How does THCV affect appetite and metabolism?

What evidence connects THCV with appetite-related or metabolic outcomes?

Focused research review Does THCV help with inflammation?

What evidence connects THCV with inflammation-related or immune outcomes?

Focused research review How does THCV affect memory, mood, and thinking?

What evidence connects THCV with neurobehavioral, cognition, mood, reward, or THC-interaction outcomes?

Focused research review Does THCV help with pain?

What evidence connects THCV with pain-related outcomes?

Focused research review What do we know about THCV safety?

What evidence connects THCV with safety, tolerability, adverse-event, impairment, or formulation-specific outcomes?

Focused research review How does THCV interact with cannabinoid targets?

What evidence connects THCV with receptor, target, metabolic, or pharmacology mechanisms?

Focused research review TRP channel cannabinoid target: what the research says

What evidence connects cannabinoids with TRPV1, TRPV2, TRPV3, TRPV4, TRPA1, and TRPM8?

Focused research review TRPA1 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with TRPA1 channel activity, binding, or signaling?

Focused research review TRPM8 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with TRPM8 channel activity, binding, or signaling?

Focused research review TRPV1 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with TRPV1 channel activity, desensitization, binding, or signaling?

Focused research review TRPV2 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with TRPV2 channel activity, binding, or signaling?

Focused research review TRPV3 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with TRPV3 channel activity, binding, or signaling?

Focused research review TRPV4 cannabinoid target: what the research says

What evidence connects cannabinoids or endocannabinoids with TRPV4 channel activity, binding, or signaling?

Focused research review Virodhamine: what the research says

What evidence defines virodhamine biology, receptor pharmacology, metabolism, physiology, or safety-relevant mechanisms?