RSO Syringes — Full-Spectrum THC Oil Syringes.

It’s a syringe filled with RSO (Rick Simpson Oil), a concentrated, full-spectrum cannabis oil made by extracting whole flower and then removing the solvent. The oil is too thick to pour, so a plunger is the practical way to dispense small, repeatable amounts. Ours hold 1 gram each, are made from a single named strain, and are never cut with distillate.

Most people take it orally: push out a small amount and swallow it, place it under the tongue, or mix it into food that contains some fat. Some people also apply it to the skin. Taken by mouth, effects usually begin 30–90 minutes after ingestion, peak at 2–3 hours, and can last 4–12 hours, so wait before taking more. If the oil is stiff, warm the capped syringe in your hand or a cup of warm water. Our syringe guide walks through it step by step.

A 1 g syringe holds about 1 ml of oil. The full tick marks are 0.1 ml and the half ticks are 0.025 ml. A rice-grain-sized drop, the amount commonly suggested as a first dose, is smaller than the smallest tick.

THC per gram varies by strain and batch, and the batch’s certificate of analysis lists it. As an illustration: if a batch tests at about 700 mg THC per gram, one 0.025 ml half-tick holds roughly 17 mg of THC, which is a lot for a new user. That’s why the usual advice is start with a rice grain, wait at least two hours, and go slow. This is general information, not medical advice.

Emerald Bay RSO syringes are sold only through licensed California dispensaries; we don’t sell online or ship cannabis. California requires buyers to be 21 or older, or 18+ with a physician’s recommendation for medicinal use, and every licensed retailer is licensed by the Department of Cannabis Control. Use our store locator to find the nearest one, or ask your dispensary to stock us.

Yes. Every batch is triple lab-tested for potency and contaminants. You can look up the certificate of analysis (COA) for each batch on our lab results page.