5 Crucial Steps in Making a Supplement

5 Crucial Steps in Making a Supplement

A dietary supplement isn’t meant to replace a healthy diet, but rather fill the nutritional gaps in your diet. We know that all supplements aren’t created equal, but how do we know which offer the highest quality, what’s in them, or how nutrients get in a tablet?

When we make supplements, five steps are crucial. Read on to learn how these steps ensure you get the nutrients you bought and quality you can trust.

How We Ensure You Get Top-Grade Supplements

Our bodies need essential nutrients, vitamins, and minerals to function properly. Most of us take at least one dietary supplement to meet daily nutrient recommendations. With so many on the market, choosing can be difficult and comparing confusing.

In production, these five steps – formula, ingredients, granulation and flow, size and weight of the tablet, and quality control – ensure that you get top-grade nutrients in each tablet.


Creating the formula is the first step in supplement production. Our technical director and biochemist writes a formula to convert raw materials into the correct dose to meet research-based recommendations.

For example, we make choline from the raw material, choline bitartrate. The two are not the same. Choline bitartrate contains about 41% choline. Our label shows the elemental value of choline rather than the impurity value containing bitartrate. Our formulas have a tiny overage allowance to guarantee you get at least the amount on the label.

It’s worth noting that the primary focus of Endurance Products’ supplement formulas is to promote a healthy heart, based on years of peer reviewed, published literature.


We source the majority of our ingredients in America. However, we’ve sourced niacin from Switzerland for decades. Long-standing vendor agreements help maintain the integrity of our specifications for each product.

While we trust our vendors, especially partners we’ve had since the 1980s, we still test every lot to verify the ingredients.

Granulation and flow

While many brands use ingredients in powder form, we prefer granulated actives because they improve the flow of material in the tablet presses. Powders are typically designed for less expensive capsules, but they can also require various flow agents to stay on weight.

Tableting only requires minimal milligrams of vegetable-based magnesium stearate, binders such as vegetable waxes to maintain a clean vegetable source label. Plus, tablets allow us to offer our proprietary sustained-release delivery, which mimics digestion releasing nutrients slowly over hours instead of all at once.

Correct granulation and flow guarantee that you get what you bought – the same amount and weight – in every tablet.

Size and Weight

Anyone who’s swallowed a supplement knows size and weight of the tablet really matter. Sure, we could cram more nutrients in, but what good would that do if you can’t swallow it? When we adjust formulas, we look for ways to reduce tablet sizes to make them easier to take.

Quality Control

Every aspect of supplement production must have quality control. Verifying and replicating each batch requires meticulous employee training, press operation training, lab testing, and dissolution profile testing.

As mentioned above, this begins with every batch of raw material and continues throughout production. Quality control guarantees tablets are free of any contaminants or allergens and that they contain the nutrients on the label.

In addition to random FDA inspections, we are also inspected every year by a third party, UL Verification Services, which ensures we meet Current Good Manufacturing Practices (cGMP). This certification includes our facility, equipment, materials, personnel, and processes.

Thanks to these five steps, we can certify that your dietary supplements are top-grade. If you’d like more help comparing brands, this article can help you learn to read supplement labels like a pro. Have specific questions? Reach out to us!