Short answer
No standard microdose exists for social anxiety. Store staff and researchers use the term for doses of 1 mg to 2.5 mg of THC. Human research on cannabinoids and social anxiety centers on CBD, not THC. A 2011 trial gave 600 mg of CBD to people with social anxiety disorder. Anxiety dropped during a public speaking test. That dose is 240 times a 2.5 mg microdose, and it contains no THC. THC can raise anxiety and paranoia, and the risk climbs with dose. Talk to a clinician before using cannabis for a mental health condition.
What counts as a microdose
A 2021 survey of people who microdose reported doses near 1 mg to 3 mg of THC per use. Definitions vary. Some users chase a dose with no felt high. Others accept mild effects. THC content in flower has risen since the 1990s. One inhalation of 20% flower delivers about 1 mg to 5 mg of THC to the bloodstream, based on estimated inhalation uptake of 20% to 50%. Edibles carry fixed milligrams per piece, so they are easier to measure and repeat.
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What the evidence shows
Controlled trials of THC microdoses for social anxiety are scarce. Most human data on THC and anxiety points the other way. NIDA reports that THC can cause anxiety, fear, paranoia, and panic attacks. CBD data is stronger, but the trials use single doses of 300 mg to 600 mg in a lab. Retail CBD tinctures often hold 10 mg to 50 mg per mL. Surveys of microdosers show mood gains, but those studies lack placebo controls, so the placebo response stays in the numbers.
What to expect at the store
- Age check: 21 and older for adult-use sales. Some states allow 18 and older with a medical card.
- ID: state ID, driver license, or passport. Expired documents fail the check.
- Staff: no state requires clinical training for budtenders. They can explain milligrams, onset, and product types. They cannot diagnose or prescribe.
- Purchase limits: set in grams of flower or milligrams of THC. Caps differ by state, and some states set lower limits for visitors.
- Labels: THC milligrams per serving and per package. A serving is 5 mg or 10 mg, based on state law. Oregon caps a single serving at 5 mg. California and Colorado cap it at 10 mg.
Onset and duration
Inhaled THC reaches the brain in seconds to minutes. Peak effects arrive at 15 to 30 minutes. Effects fade in 2 to 3 hours. Edibles start in 30 to 120 minutes, peak at 2 to 4 hours, and last 4 to 8 hours. Cut the piece to match the label if the dose is too high. Wait the full onset window before taking more. Repeat dosing during the wait is the cause of most bad first experiences.
Risks to weigh
- THC raises heart rate and can trigger panic attacks.
- The CDC reports that about 3 in 10 people who use cannabis develop cannabis use disorder.
- Memory and attention drop for hours after use.
- CBD blocks CYP450 enzymes and can raise blood levels of some prescription drugs.
- Cannabis is Schedule I under federal law. No FDA-approved cannabis product treats anxiety.
Tracking your own results
Log the date, product name, THC mg, CBD mg, form, and time of dose. Score anxiety from 0 to 10 at 30, 60, and 120 minutes. Change one variable at a time. Ten logged sessions tell you more than ten store recommendations. Stop if anxiety, racing heart, or paranoia increase.