Capsules, Tinctures or Teas – Choosing the Best Herbal Supplement Format

Average reading time: 8 minutes 

Herbal medicine is both ancient and new

In modern times, health food markets abound with supplements in a variety of formats. What is the best herbal supplement format: capsules vs. liquid tinctures vs. teas? Walking into a health shop can feel like entering a maze filled with hidden pitfalls that can easily lead you to buy products that do not align with your specific therapeutic goals. 

Your Roadmap to Choosing the Right Format

In this article, I am going to help you navigate this maze so you can make an informed decision about how to choose the format best suited to your needs. Finding the right match isn't just about personal preference; it requires looking at your options through a few different lenses. To guide your choice, we will explore the following aspects:

• The Science: understanding how herbal medicine is processed and why, including how the herbs are extracted, and the ratio of herbs to solvents, which can change the resulting herbal remedy 

• Human Anatomy: digestive health and metabolism can change how your body absorbs herbs

• Standardisation vs plant synergy: is standardising for one or two constituents in a herb the most effective way to take your herbal medicine?

• Fillers and Solvents: what could be lurking inside your capsules

• Quality of Herbs: growing, harvesting, and handling practices impact therapeutic value of a herbal product

Basic Chemistry of Herbal Extraction

Some therapeutic constituents (the active healing parts of a plant) are best extracted by water, others by alcohol or fats, and others by a mixture of water and alcohol: it’s all about chemistry (Ganora, 2009). Take frankincense (Boswellia serrata), whose strong anti-inflammatory effect is due to the sticky resins in the bark. Resins do not dissolve in water; high-percentage alcohol is required to extract them so your body can actually absorb and use them. Another example is marigold flower (Calendula officinalis), which provides different healing properties depending on the liquid used to extract it. Water draws out elements called saponins and flavonoids, which are gentle anti-inflammatory fluids that help move your lymphatic system. On the other hand, 90% alcohol extract is needed to draw out the plant's anti-fungal resins.

Understanding Tincture Ratios and Strength

Alcohol strength determines what is extracted from the plant, but the therapeutic strength of a liquid extract is determined by how much herb material went into every litre of alcohol. This is indicated by a ratio on the bottle. A 1:3 ratio simply means the tincture was made with 1 part herb to 3 parts solvent (could be water, alcohol or both). The more solvent used, the weaker the final extract becomes. In order from strongest to weakest, the standard ratios you will see are: 1:1, 1:2, 1:3, 1:5, and 1:10. Herbal medicine is all about optimising healing chemistry, and it is not always stronger the better. 

How Your Digestive Health Affects Absorption

The human body is designed to take what it needs from nature. Our digestive systems naturally produce a variety of acids and enzymes to break down anything we eat or drink, allowing us to absorb vital nutrients and plant chemicals. Does that mean swallowing capsules of whole dried herbs is always better than drinking liquid tinctures? The problem is, not everyone’s digestive system is running perfectly. Certain plant elements, like the anti-inflammatory saponins found in licorice root (Glycyrrhiza glabra), require a healthy gut microbiome to break down its constituents, to make it absorbable and usable for your body (Wang et al., 2023).

How you take your supplements matter

Other powerful plant chemicals, like curcumin in turmeric (Curcuma longa), require a healthy supply of bile acid—a fluid made by your body to break down dietary fats—in order to be absorbed into your bloodstream (Hewlings & Kalman, 2017). This is why the absolute best time to take turmeric or curcumin is alongside fatty foods. However, if your digestive system is currently compromised or stressed by conditions like gallbladder issues or IBS, your natural ability to break down and absorb these raw powdered herbs will be under-par.

Your liver: the gatekeeper and detoxifier

There is another complication to think about: not all the herbal chemicals processed by your digestive system actually make it into your bloodstream. This is because anything that is absorbed by your digestive system must first travel through the liver, which acts as the body's protective filter, before it reaches the circulation. Because the liver is a master detoxifier, it can significantly reduce the amount of active plant properties that make it into the rest of your body. For this reason, and especially for anyone with a sensitive or compromised digestive system, letting a liquid tincture sit under your tongue for a brief moment can be an important part of taking herbal medicine. It allows the herbs to absorb sublingually, and can provide faster relief from pain, for example.

Sometimes you need a lot of herbs to meet therapeutic threshold

Another crucial issue is that it can be incredibly challenging, or even impossible, to eat enough raw herbs to reach a therapeutic threshold. For instance, to help ease painful arthritic conditions, you may need as much as 600mg of curcumin a day. Because each gram of standard turmeric powder only contains around 3mg of curcumin (Tayyem et al., 2006). This means you would have to eat roughly 200 grams of turmeric powder every single day to get that dose – which is a massive amount to ingest. This isn't just a modern problem; if simply eating raw plants was enough, our ancestors would never have spent centuries developing clever ways to extract and concentrate the therapeutic compounds in herbs.

The Debate Over Standardised Extracts

We often see with herbs like St. John’s Wort (Hypericum perforatum) that the extract has been "standardised" to contain an exact percentage of a specific chemical, such as ~0.3% hypericin. Standardisation is a manufacturing method used to guarantee that every single bottle contains the same amount of one or two key chemical components. Plants, wild or cultivated, naturally vary in the amount of the therapeutic compounds depending on anything from weather to soil condition (Xiong et al., 2013), so there may be a benefit to standardising. 

Standardising vs Synergy

Many traditional herbalists feel that standardisation treats plants too much like pharmaceutical drugs—focusing heavily on ‘chemical X for effect Y’. Science is only just beginning to understand plant ‘synergy’. This is the way all the hundreds of natural compounds within a single plant work together as a team, creating a healing effect where the whole may be greater than the sum of its parts (1+1=3). We have to ask ourselves: how much of that natural teamwork are we losing when we artificially alter the plant's natural chemical balance through heavy processing?

What’s Inside Your Capsules and Tablets

Have you ever wondered what is actually inside your capsules and tablets? If you buy from a high-quality, reputable supplier, a capsule will contain pure, finely powdered herbs (like soothing marshmallow root) or highly concentrated, dried herbal extract (like curcumin – for reasons discussed above). 

Avoiding Unnecessary Binders and Fillers

To make pills stable, hold their shape, or flow smoothly through factory machines, many producers add manufacturing ingredients called excipients, which are fillers like cornstarch or chemical sugars like mannitol.  We often see supplements with unnecessary fillers, which are used to bulk out products.  Researchers have created special laboratory tests to spot artificial dyes hidden in bulked-up turmeric supplements (Dhakal et al., 2016). Thankfully, here in the UK, qualified medical herbalists have direct access to ethical, conscientious producers.

Avoiding harsher industrial solvents

To create these concentrated capsule powders, manufacturers use liquid solvents to draw the chemicals out of the plant, then dry it into a powder form. While safe options like water, and clean alcohol are ideal (Bone & Mills, 2012), mass-produced brands can use harsher chemicals like hexane to reduce processing costs. Hexane is a petrochemical solvent, and while manufacturers claim that the chemical residue left in the final product is minimal, public health groups admit that we don't fully know the long-term impact of consuming these low-level toxins over time (EUFIC, n.d.). More mass-produced vitamins and supplements are unfortunately the most likely to be processed with these harsh methods.

Careful growing and harvesting of herbs

The ultimate healing power of any herbal remedy depends heavily on how the plant was grown, harvested, and handled. Experts note that "wildcrafted" herbs—meaning plants harvested directly from their natural, wild environments—are ideal because plants thrive in their native habitats (Bone & Mills, 2012). Interestingly, research shows that when plants are left to grow naturally without artificial chemical sprays, they have to work a little harder to survive against local pests, diseases and weather. This natural struggle actually causes them to produce significantly higher amounts of protective, health-boosting phytochemicals (Hallmann & Sabała, 2020).

Choosing Sustainable and Ethical Plants

The recent boom in the popularity of natural health has unfortunately led to severe over-harvesting in the wild. Herbs like Goldenseal (Hydrastis canadensis) and Rhodiola (Rhodiola rosea) are now endangered. Ensuring these plants survive for our future generations is a responsibility we cannot ignore. Because of this, carefully selecting organic, sustainably cultivated herbs is often the best option today.

The Importance of Post-Harvest Handling

The way an herb is handled immediately after it is harvested also determines the final therapeutic effectiveness of a final product. For example, if fresh red clover (Trifolium pratense) is dried incorrectly or left to get damp, it can develop a natural mold that creates a blood-thinning compound called dicoumarol, which can cause health risks for vulnerable individuals. Similarly, leaving harvested herbs out in the direct sunlight for too long destroys many vital constituents. Proper drying and storing requires specialist knowledge; badly grown or poorly handled herbs will not be as effective.

If you don’t take it, it can’t heal you

There are many hurdles that can prevent people from taking their herbal medicine.

Overcoming Sensory and Taste Barriers

For some individuals, strong tastes and unusual textures can be a deal-breaker. This is especially true for children, but can also apply to neurodivergent individuals of any age.

Navigating the Demands of a Busy Life

Secondly: practicality. We all lead busy lives, and standing over a stove in the kitchen waiting for loose herbs to simmer and decoct for 20 to 30 minutes is often not an option. Furthermore, if you are currently dealing with chronic illness, exhaustion, or brain fog, trying to remember a complicated daily prescription routine can feel overwhelming.

When you take your herb matters…but it’s more important that you take it

Third, timing plays a huge role in how well an herb works. For example, digestive "bitters" work best when taken 10-15 minutes before a meal because they prime your digestive system for processing food. Meanwhile, saponins-containing herbs like horse chestnut (Aesculus hippocastanum) may cause a mild upset stomach if taken on an empty throat, meaning they are best taken with or right after meals. Capsules are almost always best taken alongside food – especially healthy fats – to help your body absorb them properly, though this still heavily relies on your baseline gut health. But if you forget, be gentle with yourself – it is always best to take the medicine a little off-schedule than not at all, because what’s left inside the bottle can't help you heal.

Finding the Format That Fits Your Lifestyle

So, what is the best herbal supplement format? The honest answer is: it entirely depends on you. Below is a simple guide to how the three main formats compare in everyday life.

Trusted Provider

When you are choosing a herbal supplement provider, consider buying from companies with qualified herbalist or nutritionist input to make sure all the products make therapeutic sense, and provide you with the best therapeutic product possible.

Why a Personalized Approach Matters 

Every single person is unique, and practicing herbal medicine can be a balancing act between what your body needs, what your budget allows, what feels manageable for you and what your daily routine permits. Balancing the science of plant chemistry with the realities of life takes training and care.  A qualified herbalist’s job is to look at your whole life and help you design a sustainable daily herbal routine.

 

References

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Bone, K., & Mills, S. (2012). Principles and practice of phytotherapy: Modern Herbal Medicine. Elsevier Health Sciences.

Dhakal, S., Chao, K., Schmidt, W., Qin, J., Kim, M., & Chan, D. (2016). Evaluation of Turmeric Powder Adulterated with Metanil Yellow Using FT-Raman and FT-IR Spectroscopy. Foods, 5(2), 36. doi.org

Ganora, L. (2009). Herbal constituents: Foundations of Phytochemistry: a Holistic Approach for Students and Practitioners of Botanical Medicine.

Hallmann, E., & Sabała, P. (2020). Organic and conventional herbs quality reflected by their antioxidant compounds concentration. Applied Sciences, 10(10), 3468. doi.org

Hewlings, S., & Kalman, D. (2017). Curcumin: A review of its Effects on Human health. Foods, 6(10), 92. doi.org

Is hexane in food a cause for concern? (n.d.). Eufic. eufic.org

Petrovska, B. (2012). Historical review of medicinal plants′ usage. Pharmacognosy Reviews, 6(11), 1. doi.org

Tayyem, R. F., Heath, D. D., Al-Delaimy, W. K., & Rock, C. L. (2006). Curcumin content of turmeric and curry powders. Nutrition and Cancer, 55(2), 126–131. doi.org

Wang, L., Gou, X., Ding, Y., Liu, J., Wang, Y., Wang, Y., Zhang, J., Du, L., Peng, W., & Fan, G. (2023). The interplay between herbal medicines and gut microbiota in metabolic diseases. Frontiers in Pharmacology, 14, 1105405. doi.org

Xiong, H., Yu, L. X., & Qu, H. (2013). Batch-to-Batch quality consistency evaluation of botanical drug products using multivariate statistical analysis of the chromatographic fingerprint. AAPS PharmSciTech, 14(2), 802–810. doi.org