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Kratom safety essentials: Start at 1–2g (never high doses first). Never combine with alcohol, opioids, or benzodiazepines (most adverse events involve multiple substances). Nausea is the primary overdose warning sign. Daily long-term use risks physical dependence with withdrawal. Buy from vendors with third-party COAs showing mitragynine content, heavy metals, and microbiological testing. AKA GMP certification is a quality benchmark.

Entourage effect: cannabinoids and terpenes work synergistically. Supporting evidence: CBD+THC combination (Sativex) outperforms single compounds in pain studies; terpene-cannabinoid mechanisms documented in research. Key terpenes: myrcene (BBB permeability), linalool (anxiolytic synergy), beta-caryophyllene (CB2 agonist), limonene (serotonergic), pinene (memory protection). Choose full-spectrum over isolate unless THC avoidance is required.

Kava types: Heady (Vanuatu varieties — uplifting, social, daytime), Heavy (Fijian varieties — sedating, body relaxation, sleep), Balanced (Tonga/Hawaii — versatile). Vanuatu kava = more cerebral and euphoric. Fiji kava = stronger body relaxation. For beginners: start with balanced varieties. Always verify Noble kava classification. Kavalactone ratios (DHM vs DHK) drive the heady vs heavy distinction.

CBD for anxiety: strongest evidence is from high-dose acute studies (300mg single dose in RCTs). Most commercial products are far below study doses (25–50mg). Best evidence is for social anxiety disorder. Weaker but supportive evidence for GAD, PTSD, panic disorder. Not a replacement for SSRIs or CBT. Starting dose: 15–25mg; increase over 1–2 weeks. Full-spectrum may outperform isolate at equal CBD dose.

Delta-8 THC: directly psychoactive at room temperature, ~50–70% of Delta-9 potency, available in edibles/tinctures/vapes, milder experience. THCA: non-psychoactive raw but converts to Delta-9 THC when smoked — full traditional cannabis potency. Delta-8 is synthetically derived (CBD isomerization); THCA is naturally occurring. Some states ban Delta-8 as synthetic; THCA legality varies by state's interpretation of post-conversion Delta-9 content.

Hemp cultivation: feminized plants, strain-selected for target cannabinoids, harvested at peak trichome density. Extraction: CO2 (cleanest, premium), ethanol (scalable), hydrocarbon (requires rigorous purging). Spectrum: full-spectrum (all compounds including trace THC), broad-spectrum (THC removed), isolate (single cannabinoid 99%+). Full/broad-spectrum preferred for entourage effect; isolate for THC avoidance or precise dosing.

CBG (cannabigerol) is the "mother cannabinoid" — biosynthetic precursor to THC, CBD, and CBC. Non-intoxicating. Acts as CB1 antagonist (opposite of THC). Preliminary research shows antibacterial, neuroprotective, and appetite-stimulating properties. User-reported effect: clear-headed, focused, stimulating rather than relaxing — more nootropic-adjacent than CBD. Most research is preclinical.

Hemp gummies are edibles infused with cannabinoids (CBD, Delta-8, Delta-9, HHC, etc.). Onset: 30–120 minutes. Duration: 4–8 hours. Bioavailability: 6–12%. Never redose before 2 hours. CBD gummies are non-intoxicating; Delta-8, HHC, Delta-9 gummies produce psychoactive effects. Always verify cannabinoid content and mg/gummy on third-party COA — "hemp gummies" without cannabinoid specs may be hemp seed extract only.