Cannabis tinctures are liquid cannabis extracts made by dissolving the plant’s active compounds into a carrier liquid, most commonly high-proof alcohol, oil, or vegetable glycerin. You take them by placing drops under your tongue or adding them to food and drinks. They’re one of the oldest forms of cannabis consumption, and they’ve become popular again because they’re discreet, easy to dose precisely, and don’t require smoking or vaping.
How Tinctures Are Made
The basic process involves soaking cannabis flower in a solvent that strips out cannabinoids (like THC and CBD) and terpenes, the aromatic compounds that contribute to the plant’s effects and flavor. The solvent does the heavy lifting: it pulls active compounds out of the plant material, leaving you with a concentrated liquid.
For alcohol-based tinctures, the gold standard is 190- to 200-proof food-grade ethanol or Everclear. These high-proof alcohols are strong enough to efficiently separate cannabinoids from plant material. Lower-proof options like 80-proof vodka contain too much water, which interferes with extraction. Rubbing alcohol should never be used, as it’s toxic when consumed.
Three Types of Tinctures
Not everything sold as a “tincture” is made the same way. The carrier liquid changes the taste, shelf life, and how the product behaves in your body.
- Alcohol-based tinctures use ethanol as both the extraction solvent and the final carrier. They taste bitter or sharp, but they last the longest in storage: three to five years when properly kept, and potentially much longer. A well-stored alcohol tincture can remain potent for years or even decades.
- Oil-based tinctures use carriers like MCT (coconut-derived) oil, olive oil, or hempseed oil. They have a smoother, more neutral flavor that can be easily masked with added flavoring. Shelf life runs one to two years.
- Glycerin-based tinctures rely on vegetable glycerin, which gives them a naturally sweet, syrupy taste. They’re the mildest-flavored option but also the least stable, lasting about a year before degrading.
Many products labeled “tinctures” in dispensaries are actually oil-based formulations. True tinctures are technically alcohol-based, but the term has become a catch-all for any dropper-bottle cannabis liquid.
How to Take a Tincture
The most common method is sublingual: you place drops under your tongue and hold them there for 30 to 60 seconds before swallowing. The tissue under your tongue is thin and rich with blood vessels, so cannabinoids can pass directly into your bloodstream without traveling through your digestive system first.
This matters because of something called first-pass metabolism. When you swallow cannabis (as with an edible), it passes through your stomach and liver before reaching your bloodstream. The liver breaks down a large portion of the cannabinoids along the way. Oral consumption allows only about 20% of THC to actually reach your bloodstream. Sublingual absorption bypasses that liver processing entirely, delivering roughly three times the absorption rate of swallowed cannabis.
You can also swallow a tincture directly, mix it into a drink, or add it to food. When consumed this way, it behaves more like a traditional edible, with a slower onset and longer-lasting effects.
Onset Time and Duration
How you take a tincture determines how quickly you’ll feel it and how long the effects last.
Sublingual use typically kicks in within 15 to 45 minutes. Effects generally last two to six hours. This faster onset makes it easier to gauge whether you need more, reducing the risk of taking too much.
Swallowing a tincture pushes the onset to 30 minutes to two hours or more, since it has to pass through your digestive system. The tradeoff is that effects stretch longer, typically four to eight hours. This is the same timeline you’d expect from any cannabis edible.
How to Calculate Your Dose
Tinctures come with graduated droppers, usually marked at 0.25 mL, 0.50 mL, 0.75 mL, and 1 mL (a full dropper). This makes precise dosing straightforward once you know the math.
Every tincture bottle lists its total cannabinoid content in milligrams and its volume in milliliters. Dividing total milligrams by total milliliters gives you the concentration. A 30 mL bottle containing 600 mg of THC, for example, works out to 20 mg per mL. Since a full dropper holds 1 mL and contains roughly 20 drops, each drop in that bottle would deliver about 1 mg of THC.
To figure out how much liquid you need for a specific dose, divide your desired dose by the concentration. If you want 5 mg from that same bottle (20 mg/mL), you’d take 0.25 mL, or about 5 drops. Starting with a low dose and waiting to feel the effects before taking more is the simplest way to find what works for you, especially with a new product.
Why People Choose Tinctures Over Other Methods
Precision is the biggest draw. Smoking and vaping make it difficult to know exactly how much you’ve consumed, and edibles are pre-portioned into fixed doses. Tinctures let you adjust by a single drop at a time.
They’re also discreet. There’s no smoke, no vapor, no lingering smell. A small bottle fits in a pocket or bag, and taking a dose looks no different from using any other liquid supplement. For people who want to avoid inhaling anything or who dislike the delayed, sometimes unpredictable effects of edibles, tinctures sit in a useful middle ground: faster than eating cannabis, gentler on the lungs than smoking it.
Tinctures also contain minimal calories compared to gummies, chocolates, or baked edibles, which can matter for people using cannabis regularly and watching their intake.
Storage and Shelf Life
All cannabinoids degrade when exposed to heat, light, and oxygen over time. Proper storage keeps a tincture potent for as long as possible.
Store tinctures in a cool, dark place. Most come in amber or dark glass bottles for a reason: they block light that would otherwise break down the active compounds. Keep the cap tightly sealed between uses to limit oxygen exposure. A cupboard or drawer works well. Refrigeration isn’t necessary for alcohol-based tinctures but can help extend the life of oil- and glycerin-based products.
Alcohol-based tinctures are remarkably durable. Ethanol is a natural preservative, so these formulations can remain effective for three to five years under good conditions. Oil-based tinctures hold up for one to two years, while glycerin-based versions have the shortest window at around a year. If a tincture changes color significantly, develops an off smell, or tastes noticeably different, it’s likely degraded.