Understanding and Decoding Herbal Supplement Labels

If you’ve ever looked at an herbal supplement label and felt like you needed a degree in botany or chemistry, you’re not alone. From scientific names and proprietary blends to inactive ingredients and marketing hype, it’s hard to know what you’re buying and, more importantly, what you’re putting into your body.

The sad truth is that many herbal supplements contain far more than the herb featured on the front of the bottle or promised in the name. Some inactive ingredients are essential for manufacturing, but others don’t serve a functional purpose in terms of efficacy or potency.

Learning how to read a supplement label to recognize fillers and understand what you’re taking is the first step in becoming an informed consumer and making better decisions about the products you choose.

Quick Links:

• Why Herbal Supplement Labels Matter More Than You Think
• What Are Herbal Supplement Ingredients? Breaking Down the Basics
• What Are Fillers in Supplements (And Why Are They Used)?
• How to Read a Supplement Label Step by Step
• FDA Herbal Supplement Label Requirements: What’s Required (and What’s Not)
• Our Approach: Single and Limited Ingredient Herbal Supplements

Why Herbal Supplement Labels Matter More Than You Think

Picture yourself in the aisle at the grocery or health food store, supplement bottle in your hand, and you’re reading the label. What are you looking for?

Most folks simply look at the “active” ingredient and skip over the rest, which is sometimes lengthy and full of small print. But all those other ingredients can dramatically affect the supplement's quality and effectiveness. And, when it comes to supplements and what you put in your body, for your health, transparency matters.

That’s not what you’re getting when you’ve got a product with a long list of ingredients, including binders, fillers, artificial colors, sweeteners, preservatives, and “proprietary” blends that make it hard to know what you’re really taking or, in some cases, how much of it you’re getting. In fact, most people don't even realize that many mass-market botanicals and herbal supplements contain all of those ingredients.

That’s why learning to read a supplement label matters. As a consumer, understanding the difference between an active herbal ingredient and an unnecessary additive can help you make more informed choices when it comes to the products and brands you choose.

It can also help you learn which products and brands are prioritizing transparency, sourcing, and meaningful formulations over marketing hype or health influencer trends.  

What Are Herbal Supplement Ingredients? Breaking Down the Basics

Let’s start with the true basics. On most herbal supplement bottles, you’ll see two kinds of ingredients: active and inactive. The difference between the two is perhaps one of the most important parts of reading the label.

Active Ingredients

The active ingredients are herbs, botanicals, vitamins, minerals, or plant compounds designed to deliver the product's primary benefit.

For example, turmeric may be listed as an active ingredient for joint support; celery seed for kidney support; ashwagandha for stress; and dandelion leaf for fluid retention. These ingredients would typically be listed under “Supplement Facts,” along with the dosage amount.  

Additionally, the label will often include which part of the plant is used (leaf, root, flower), whether it’s powdered or extracted, and the extract's potency.

Let’s go back to ashwagandha for a second. As an ingredient, it provides some information to consumers, but a more comprehensive label might read “Ashwagandha root extract,” which says far more about what’s in your supplement. 

It’s important to note that different parts of plants contain different compounds, and extraction methods may impact potency and consistency, so understanding as much as you can about the active ingredients is essential.

Inactive Ingredients

First, let’s be clear that some inactive ingredients serve essential purposes, such as anti-caking agents or binding agents that hold pills together. However, they also include everything else added to supplements for a variety of reasons, from flavor to color.

This is why label reading is so important. Often, a single beneficial herb is listed and featured on the front of a bottle, but the label also lists 10 or more additional ingredients that most consumers know little about.

While the FDA requires supplement manufacturers to list all ingredients on their labels, the products themselves are not reviewed for safety or effectiveness, so a consumer’s best defense is understanding what’s in what they’re taking.

What Are Fillers in Supplements (And Why Are They Used)?

As we mentioned above, filler doesn’t necessarily mean bad. Some of these inactive ingredients are added for legitimate manufacturing purposes. Inactive ingredients are often called: excipients, binders, flow agents, or anti-caking agents, and, in some cases, their purpose will be listed on the bottle as well.

However, this becomes a problem when an herbal supplement contains far more inactive ingredients than consumers realize. In fact, in some herbal supplements, the inactive ingredients significantly outnumber the active ingredients and make up more of the product than the active ingredients do. Some manufacturers use these fillers to decrease production costs, improve flavor, produce brighter, more attractive colors, or even make products seem bigger than they are, tapping into a misguided assumption that bigger is better.

So what are you looking for when you’re looking for fillers?

Be Aware of These Common Fillers in Herbal Supplements 

The good news for consumers is that many herbal supplements that include fillers use the same fillers, so once you learn what you’re looking for, you’re one step ahead! Here are a few of the more common fillers to watch for:

• Magnesium stearate- Used as a lubricant to keep ingredients from sticking to production and manufacturing equipment
• Silicon dioxide- Used as an anti-caking agent to prevent clumping
• Microcrystalline cellulose- Used as a binder in tablets and capsules (plant-based)
• Maltodextrin- Used as a filler, stabilizer, or sweetener (also found in foods)
• Artificial Dyes/Colors- These are solely for appearance over function 
• Titanium Dioxide- Much like dyes, this is a whitening agent for pills/capsules
• Gelatin- Used in capsules (gel caps) and animal-derived unless labeled vegetarian or vegan
• Rice flour- Used as a bulking agent in capsules (makes them bigger or fills them out)
• Hydrogenated oils- Often used in softgels or processing/manufacturing
• Artificial sweeteners or flavors- Often found in gummies, powders, or supplements added to foods/drinks
• “Proprietary blend”- Essentially a catch-all phrase that allows companies to avoid disclosing how much of each ingredient is included

Of course, not all of these ingredients are bad for you, and some may be necessary depending on the product and production. That said, a long ingredient list made up largely of unnecessary additives should trigger a red flag for you as a consumer.

This is especially true for people with allergies, sensitivities, dietary restrictions, digestive issues, or simply anyone trying to avoid artificial ingredients. Instead, look for single- or limited-ingredient herbal supplements with simple, transparent formulas.

How to Read a Supplement Label Step by Step

Even with additives, reading an herbal supplement label need not feel complex, and certainly shouldn’t feel like you need a chemistry book or pharmaceuticals guide. Here’s a simple step-by-step:

1. Find the active ingredients- You’ll find these in the “Supplement Facts” panel. Pay attention to the herb, the amount per serving, and which part of the plant is used.

2. Check the serving size- How many should you take for one serving? And, don’t forget, in some cases, how often. This should be a precise amount, whether it’s a capsule, gummy, drop, or liquid.

3. Keep an eye out for “proprietary blends”- While sometimes, proprietary blends may be used to protect intellectual property, be mindful of lists that don’t include all ingredients and, instead, state proprietary blend. Some may tell you what herbs are present, but not in what quantities, while others may not even include all of the ingredients. Ultimately, you want to know exactly what you’re taking (as does your doctor).

4. Read through other/additional ingredients- This is where you’re going to find any inactive ingredients such as fillers, colors, sweeteners, binders, and preservatives.

5. Check for COAs, testing, and transparency- Brands focused on quality and trust-building often include certificates of analysis, third-party testing, sourcing information, and contact details. In some cases, if it’s not on the label, it can be found on their website.

While a good label should help you understand what you’re taking, avoid guesswork and do some research, especially if it’s an herbal supplement you’re taking regularly.

FDA Herbal Supplement Label Requirements: What’s Required (and What’s Not)

Now that we’ve “looked” at the label, let’s look at what makes it different. Unlike foods and medicines, herbal supplements are not approved by the FDA before being sold. However, they are regulated as dietary supplements. This means manufacturers, not the FDA, are responsible for safety testing and ensuring products are properly labeled.

It is essential to understand that producers and manufacturers of herbal supplements are not required to prove their effectiveness before making the product, nor does the FDA test supplements.

This means the FDA requires:

• A Supplement Facts panel
• Serving size and servings per container
• Active ingredients per serving
• Other ingredients (inactive)
• Manufacturing and distribution information
• Directions for proper use
• A disclaimer for any claims made about the function of the supplement (typically, that those claims have not been evaluated by the FDA)

In short, caveat emptor (buyer beware). This makes it more important than ever that mindful decisions about which brands and supplements to choose are well-informed. When choosing a brand, look for transparency, clinical oversight, ingredient quality (and quantity!), and third-party testing where applicable.

Our Approach: Single and Limited Ingredient Herbal Supplements

Our approach can be summed up in a short phrase: simpler is often better. We believe herbal supplements should be intentionally formulated, with transparency in both ingredients and production.

We don’t use fillers or artificial ingredients. Instead, our focus is on single- and limited-ingredient botanicals, with purposeful inclusion and clear communication about what’s in our products and why it’s there.

Each of our formulations is based on well-documented use in herbal traditions and modern clinical research, and informed by clinical oversight from a naturopathic doctor. 

At SuperTrees Botanicals, we prioritize ingredients and outcomes. You’ll find clean formulations, transparent labeling, and carefully selected (and sourced) ingredients so you can feel confident about the products you’re buying and what you’re putting in your body.

If you’re interested in trying our curated line of botanicals and herbal supplements, head over to the shop! Questions? Please reach out to our team. As a small, family-owned business, you’ll get a human, happy to help you.