An earlier version of this article argued that tinctures beat gummies and drinks. I've rewritten it as a fairer comparison. We make CBD oils and one roll-on, and no gummies, capsules or drinks, so you should weigh my view with that in mind. The comparisons below are ones you can check on any product.
The formats at a glance
| Oil / tincture | Gummies | Capsules | Drinks | Topicals | |
|---|---|---|---|---|---|
| How you use it | Drops by mouth, or in food or drink | Chew | Swallow | Drink | Apply to skin |
| Dosing precision | High: adjust in small steps | Fixed per piece | Fixed per capsule | Fixed per can or bottle | Hard to measure; applied by feel |
| Sugar and additives | Usually just a carrier oil | Usually sugar or sweetener, gelatin or pectin, flavor, color | Capsule shell, carrier oil | Varies; may include sugar | Oils, waxes, often menthol or essential oils |
| Taste | Earthy unless flavored | Flavored | None | Flavored | Scent only |
| Portability | Good; small glass bottle | Very good | Very good | Bulky | Good for roll-ons |
| Price per mg | Often lowest | Middle | Middle | Often highest | Compare total mg and size |
Timing and absorption: what the evidence actually says
This is where format marketing gets ahead of the science, so here is what the research supports.
Swallowed CBD is absorbed slowly and incompletely. A 2018 systematic review of CBD pharmacokinetics in humans noted that earlier studies, including animal studies, put the oral bioavailability of CBD at roughly 13 to 19%, because CBD is heavily broken down by the liver on first pass (Millar et al., Frontiers in Pharmacology, 2018). The label for Epidiolex, the prescription CBD drug, gives a time to peak blood level of 2.5 to 5 hours at steady state (Epidiolex label, DailyMed). That's a drug at prescription doses, so read it as a rough guide, not a promise for any supplement.
Food matters a lot. On the same label, taking the drug with a high-fat, high-calorie meal raised peak levels about 5-fold and total exposure about 4-fold compared with fasting. This applies to every swallowed format: oils, gummies, capsules and drinks. Whichever you choose, take it the same way each day so you're comparing like with like.
Under the tongue is plausible, but the evidence is thin. Holding oil under the tongue before swallowing is common advice (it's on our label too). The 2018 review found few human studies of this route, mostly of a mouth spray that also contained THC. It's a reasonable habit; it isn't a proven shortcut.
Drinks and "nano" or "water-soluble" CBD are often sold as faster. Independent human data comparing them with plain oil is limited, so read those claims with caution until a brand shows you its evidence.
Topicals are designed to act where you put them. The 2018 review found no published human data on CBD absorbed through the skin into the blood. Much of what you feel from a topical comes from ingredients like menthol and camphor. Our post on CBD bioavailability goes further, and how long CBD takes to work covers timing in practice.
Dosing precision
With an oil, you measure the serving yourself and can adjust in small steps within the label directions. Our Comfort Drops, for example, list 33 mg of CBD per 0.5 ml dose. With a gummy, capsule or drink, the serving is set for you. That's an advantage if you want no measuring and a disadvantage if the set amount doesn't suit you, since halving a gummy or a can is imprecise.
Label accuracy also varies by format. In a 2017 JAMA study of 84 CBD products bought online, 45% of the 40 oils were labeled within 10% of their stated CBD, compared with 25% of the 20 tinctures and 12.5% of the 24 vape liquids (Bonn-Miller et al., JAMA, 2017). The study didn't include gummies, capsules or topicals, and the market has changed since 2016. The lesson holds for any format: check the batch lab report.
Sugar, additives and taste
Oils are usually CBD extract in a carrier oil. Ours use MCT coconut oil and no sugar. Gummies usually contain sugar or a sweetener and a gelling agent, which adds up if you take more than one a day. Capsules avoid taste entirely. Drinks vary widely, so read the nutrition panel. With topicals, read the full ingredient list for fragrance and essential oils if your skin is sensitive.
If the earthy taste of plain oil is the problem, you can mix it into food or a drink. Just remember that food changes absorption.
Portability and storage
Where you'll use CBD matters as much as how. Gummies and capsules travel best: no dropper, nothing to spill, and a day's serving fits in a pocket. Oils come in small glass bottles that travel well enough in a bag, though a dropper is awkward to use on a train or at a desk. Drinks are the bulkiest, and a single can is one serving. Roll-ons are easy to carry and keep product off your hands; jars of balm are less so.
Storage is similar across formats. CBD can break down over time with heat and light, so keep any format closed, cool and out of the sun, and check the best-by date. Gummies can also soften or stick together in a warm car. Our post on whether CBD oil expires covers shelf life. If you fly, liquids in carry-on bags fall under TSA's container size limits, which most small oils and roll-ons already meet.
Price per milligram
Compare formats on price per milligram of CBD. Divide the price by the total CBD in the package:
- Oil: our Comfort Drops are $35 for 1,000 mg, which works out to $0.035 per mg.
- Gummies or capsules: multiply the mg per piece by the count. A 30-count jar at 25 mg each holds 750 mg; divide the price by 750.
- Drinks: divide the price of one can by its mg, then compare.
Gummies and drinks carry extra ingredients, packaging and manufacturing, which is why they often cost more per milligram. That's a tendency, not a rule, so do the math. For why prices vary, see why CBD costs what it does.
Which format should you buy?
- You want control and value: an oil.
- You want zero measuring and no taste: a capsule.
- You want something pre-measured you can carry: a gummy, accepting the sugar.
- You'd like CBD as an occasional drink: a drink, accepting the price.
- You want a local sensation on a spot on your skin: a topical. Our roll-on vs cream vs patch post helps pick one.
From Proof, that means CBD Comfort Drops or CBD + CBN Sleepy Drops for oils, and the Ice Hot CBD Roll-On (cooling then warming, from menthol and camphor) for a topical. For gummies, capsules or drinks, apply the same checks to another brand.
FAQ
Are CBD gummies or oil better?
Neither is better overall. Oil gives more control and usually a lower price per milligram; gummies are pre-measured and portable but usually contain sugar. Choose the one you'll use consistently.
Which CBD format works fastest?
There isn't good human evidence ranking consumer formats by speed. Swallowed CBD is absorbed slowly, and food changes absorption a lot. Be wary of precise onset times on packaging.
Are CBD capsules the same as CBD oil?
Many capsules contain CBD in oil inside a shell, so the ingredients can be similar. The difference is a fixed serving and no taste.
Can I use a topical and an oil together?
Many people do, because they're used differently. Follow each label, and ask your clinician or pharmacist first if you take medication.
Do CBD drinks have less CBD than oils?
Not necessarily per serving, but a can usually holds one serving, so the price per milligram tends to be higher. Read the mg per container and do the math.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.