A cannabis distillate syringe lists two potency numbers: percent THC by weight and total THC in milligrams. Most retail syringes test from 70% to 90% THC. A 1 mL syringe holds about 1 gram of oil, so an 85% syringe carries about 850 mg of THC.

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How Labs Measure Distillate Potency

Labs use high-performance liquid chromatography (HPLC) to separate and quantify cannabinoids. Raw plant material holds THC as THCA. Heat removes a carboxyl group and converts THCA to THC. The conversion factor is 0.877, which reflects the mass of carbon dioxide lost in the reaction.

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Distillate has been decarboxylated during production. THCA readings come back near zero. Total THC equals the delta-9 THC value plus 0.877 times the THCA value. For distillate, the second term adds little.

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What the Numbers on a Syringe Mean

Why Two Syringes at the Same Percent Can Differ

Starting material sets the ceiling. Biomass at 15% THC yields less usable distillate than biomass at 25%. Each distillation pass raises purity and lowers yield. Hardware also matters. Oil clings to the barrel, plunger, and tip. A 1 mL syringe can retain 50 mg to 100 mg of product.

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Reading the COA

A certificate of analysis lists the batch number, test date, lab name, and method. Check delta-9 THC, THCA, total THC, and the limit of quantification (LOQ). State rules allow a margin of error on potency labels. A product labeled 80% may test from 72% to 88% and stay compliant.

Storage and Loading

Distillate is thick at room temperature. Warm the syringe in a sealed bag at 140 F to 160 F (60 C to 71 C) for a few minutes to move the oil. Keep the cap on, store upright, and avoid light and heat. Potency drifts as THC oxidizes to CBN over months.

Buying Online

Check the COA before purchase. Confirm the batch number matches the package. Ask for the test date. A distillate label carries more value when the milligram count and the percent agree.