What Does Alcohol Percentage Mean in a Herbal Tincture?

Written by Lize Bührmann, founder of Pharmatropia.

Short answer: the alcohol percentage on a herbal tincture usually describes the concentration of ethanol in the extraction liquid, commonly expressed as percentage by volume. It helps explain the solvent system used to extract and preserve plant constituents. It does not, by itself, tell you how strong the herbal extract is.

To understand a tincture properly, read the alcohol percentage alongside the plant name, plant part, extract ratio, starting material and serving size.

Why tinctures use alcohol

Ethanol mixes with water and can extract a broad range of plant constituents. Water is good at dissolving many polar compounds; alcohol can help dissolve less water-soluble constituents. The chosen balance depends on the herb and the intended preparation.

Alcohol can also support preservation when the finished concentration and manufacturing process are appropriate. That does not mean more alcohol always creates a better extract. A recent 2026 laboratory study found that changing hydroethanolic solvent composition altered the compounds recovered from plant material—evidence that solvent choice matters, not that one percentage is universally best. See the study indexed by PubMed.

What does 20%, 45% or 60% alcohol mean?

On a liquid label, the percentage is often written as “% v/v”, meaning millilitres of ethanol per 100 mL of finished liquid under defined conditions. A 45% v/v tincture therefore uses a solvent system containing roughly 45 mL ethanol per 100 mL, with the remainder largely water and extracted constituents.

This is a formulation description, not a serving recommendation. The alcohol actually consumed depends on the volume taken. A dropperful, 1 mL and 5 mL are very different amounts, and “one dropper” is not a precise universal measure. See our guide to drops versus millilitres in herbal tinctures.

Alcohol percentage is not herbal strength

A tincture’s botanical concentration is more directly described by its drug-extract ratio or herb-to-liquid ratio. For example, 1:5 and 1:10 refer to the relationship between starting plant material and the resulting preparation under the manufacturer’s specified method. They do not describe alcohol percentage.

A 1:5 tincture made with 40% alcohol is not automatically comparable with another 1:5 product. Fresh versus dried plant, plant part, botanical identity, extraction time, process and analytical controls still matter. Our article on what 1:2, 1:5 and 1:10 tincture ratios mean explains the label maths.

Why different herbs use different percentages

• Constituent solubility: some target compounds are more water-soluble, while others extract better with a larger alcohol fraction.
• Fresh plant water: fresh herbs bring their own moisture into the mixture, which affects final solvent concentration.
• Plant part: roots, barks, leaves, flowers and resins can require different approaches.
• Stability: the final formulation must remain microbiologically and chemically appropriate through its stated shelf life.
• Tradition and specification: pharmacopoeial or manufacturer methods may define a particular solvent range.

Because these variables interact, choosing the bottle with the highest percentage is not a reliable shortcut to quality.

How to compare tinctures responsibly

1. Confirm the Latin botanical name and the plant part.
2. Check whether the starting material was fresh or dried.
3. Read the extraction ratio and alcohol percentage as separate facts.
4. Look for a clear serving size in millilitres, not only drops.
5. Check the batch code, expiry date, manufacturer details and storage instructions.
6. Ask why that solvent strength was chosen for that herb.

Storage also affects quality after purchase. Read how long herbal tinctures last and how to store them.

What if you avoid alcohol?

An alcohol-free glycerite may be preferable for personal, religious or clinical reasons. Glycerites and alcohol tinctures are not automatically interchangeable: they can differ in extraction profile, stability, taste and serving guidance. Our comparison of alcohol tinctures and glycerites covers the practical trade-offs.

Do not assume that adding a tincture to hot water removes all the alcohol. Evaporation depends on temperature, time, surface area and mixing. If complete avoidance matters, select a suitable alcohol-free formulation after checking the full ingredient list.

Extra caution for children and pregnancy

Alcohol exposure, herb choice and serving size all require careful review for children, pregnancy, breastfeeding, liver disease, alcohol-use concerns and medicines that interact with alcohol. The European Medicines Agency has published a dedicated reflection paper on ethanol in herbal products used by children. Ask a qualified clinician or pharmacist rather than adapting an adult product yourself.

Frequently asked questions

Is a 60% alcohol tincture stronger than a 20% one?

Not necessarily. It has a higher ethanol concentration, but botanical strength depends on the extraction ratio, material and process.

Does the alcohol percentage equal the percentage of herb?

No. Alcohol percentage describes the solvent. The plant concentration requires separate extract-ratio and ingredient information.

Can I remove the alcohol with boiling water?

You may reduce some alcohol, but cannot assume it is completely removed. Heating may also affect some constituents. Choose an appropriate alcohol-free product when avoidance is important.

Why does my tincture taste very strong?

Alcohol, bitter plant constituents and concentrated aromatics can all contribute. Taste alone cannot confirm potency or quality.

Educational disclaimer: This article is general information, not a manufacturing guide or personalised dosing advice. Herbal products can interact with medicines and may be unsuitable in pregnancy, breastfeeding, childhood or certain health conditions.