Theacrine: Forms and Which One to Choose

Theacrine is rarely sold as a standalone product on the shelf next to caffeine. More often it is «hidden» in pre-workout complexes, energy drinks or fat burners. The form in which you get it determines whether you know the exact amount of the substance and what exactly it is combined with. The editorial team examined the main formats and the criteria for choosing.

Raw material: standardized theacrine and extracts

Most theacrine on the market is a standardized substance obtained by a manufacturer's technologies and sold under trademarks, the best known of which is TeaCrine®. It is precisely this form that was used in most of the published clinical studies, so there is at least basic data on its tolerability.

In addition, there are products with «kucha tea extract» or other plant extracts in which theacrine is present as one of the components. The content of the active substance in such extracts can vary significantly depending on the raw material and the technology, and is not always indicated on the label.

The difference between these two options is fundamental. In the standardized form you know the amount of theacrine in milligrams. In an extract — only the mass of the extract, from which it is difficult to draw a conclusion about the dose.

For a person who wants to control their response to a substance, a standardized ingredient with a stated amount is obviously the better choice. The presence of a registered trademark of the ingredient on the label usually indicates that the manufacturer purchases raw material with known characteristics.

Single-ingredient products: capsules and powder

Capsules with theacrine usually contain 50–100 mg of the substance, sometimes with a small amount of caffeine or L-theanine. This is the most convenient format for accurate dosing: one capsule — a known amount that is easy to record and adjust.

Pure theacrine powder is sold more rarely and is aimed at experienced users. The required doses are measured in tens of milligrams, and it is impossible to measure them with a scoop — for this you need precise jeweler's scales. An error of several times when working with powder is real and dangerous given the stimulating action.

Tablets and chewable forms occur as part of «energy» products. They are convenient, but often contain additional stimulants and sweeteners.

A single-ingredient product has one more advantage: it makes it possible to assess the response to theacrine itself, without the influence of other components. If side effects appear, their cause is obvious.

Complex products: pre-workouts, energy drinks, fat burners

Pre-workout complexes are the most common source of theacrine. It is usually combined with caffeine, beta-alanine, citrulline, taurine. In quality products the amount of each component is stated separately; in less transparent ones the components are hidden in a «proprietary blend».

Energy drinks with theacrine combine it with caffeine, sugar or sweeteners. The format is convenient, but a person often consumes several cans over the course of a day, and the total amount of stimulants quickly grows.

Fat burners are the riskiest category. In them theacrine is combined with caffeine, synephrine, yohimbine, green tea extracts and other substances. Each component individually may be acceptable, but the combination amplifies the stimulation, while the evidence base for such mixtures is practically absent.

Another problem with complex products is the impossibility of isolating the effect. If insomnia or tachycardia appears after a pre-workout complex, it is unclear which substance is responsible.

How to read the label

First find the name of the substance itself: «theacrine», «1,3,7,9-tetramethyluric acid» or the trademark of the ingredient. Next to it should be the amount in milligrams per serving. If theacrine is indicated only in the list of ingredients of a «blend» without an amount, the product will not allow you to control the dose.

Next, check the amount of caffeine and other stimulants. Add them to what you already consume during the day: coffee, tea, energy drinks. A reference point for caffeine is the EFSA recommendation — up to 400 mg per day for healthy adults.

Pay attention to the serving size. Sometimes manufacturers state the content per «2 scoops» or «2 capsules», while printing the amount for the whole serving in large type on the package. It is easy to accidentally take twice as much as planned.

For athletes who undergo doping control, independent certification (Informed Sport, NSF Certified for Sport, etc.) is critically important. Pre-workout complexes and fat burners are the categories with the highest risk of contamination with prohibited stimulants.

• The exact name of the substance and the amount in mg per serving.
• The amount of caffeine and the list of other stimulants.
• The serving size and the number of servings in the package.
• The batch number, expiration date, certification.

Which form to choose

If you are trying theacrine for the first time and want to understand your response, the best option is a single-ingredient product in capsules with a stated amount. It allows you to assess the effect and tolerability without the influence of other substances.

If theacrine is needed specifically as part of a pre-workout ritual, choose complexes with a fully disclosed composition and take caffeine into account in the overall daily balance. Do not combine such products with coffee or energy drinks on the same day without calculation.

The editorial team does not recommend pure powder without precise scales. Fat burners with several stimulants are also not the best way to get theacrine because of the difficulty of assessing the risks.

Regardless of the form, remember the timing of intake: theacrine acts for a long time, so any product with it is better consumed in the first half of the day.

Editorial conclusions

The form of theacrine determines the main thing — whether you know how much of the substance and which accompanying stimulants you are getting. The most transparent format is single-ingredient capsules with a stated amount of the standardized ingredient.

Pre-workout complexes are acceptable provided the composition is fully disclosed and caffeine is accounted for. Energy drinks and fat burners carry the risk of an imperceptible accumulation of stimulants.

Pure powder and «proprietary blends» make it harder to control the dose, so for most people they are not a rational choice.

We also recommend our materials «How to take Theacrine: dosage, timing, duration», «Side effects of Theacrine» and «Theacrine: what it is and how it works».

References

1. Taylor L, Mumford P, Roberts M, et al. Safety of TeaCrine®, a non-habituating, naturally-occurring purine alkaloid over eight weeks of continuous use. J Int Soc Sports Nutr. 2016;13:2.
2. Zheng XQ, Ye CX, Kato M, Crozier A, Ashihara H. Theacrine (1,3,7,9-tetramethyluric acid) synthesis in leaves of a Chinese tea, kucha (Camellia assamica var. kucha). Phytochemistry. 2002;60(2):129–134.
3. He H, Ma D, Crone LB, et al. Assessment of the drug–drug interaction potential between theacrine and caffeine in humans. J Caffeine Res. 2017;7(3):95–102.
4. EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA). Scientific opinion on the safety of caffeine. EFSA J. 2015;13(5):4102.
5. Guest NS, VanDusseldorp TA, Nelson MT, et al. International society of sports nutrition position stand: caffeine and exercise performance. J Int Soc Sports Nutr. 2021;18(1):1.