PurTea® (Organic Green Tea Caffeine — Applied Food Sciences)

Camellia sinensis
Evidence Level
Moderate
1 Clinical Trial
3 Documented Benefits
3/5 Evidence Score

PurTea® is an organic green tea (Camellia sinensis) extract from Applied Food Sciences, providing naturally sourced caffeine along with green tea catechins. It offers a clean-label, smoother source of caffeine for energy, with the antioxidant benefits of green tea polyphenols.

Studied Dose Commonly 100 to 200 mg of caffeine per serving.
Active Compound Organic green tea extract providing caffeine with catechins (EGCG) and a little L-theanine.

Benefits

Energy and alertness

Caffeine reliably increases alertness, focus, and perceived energy, here from a natural, organic green tea source.

Exercise performance

A meta-analysis confirmed caffeine improves endurance performance and time to exhaustion.

Antioxidant support

Green tea catechins add antioxidant activity, and the naturally present L-theanine can smooth caffeine's effect.

Mechanism of action

1

Adenosine blockade

Caffeine blocks adenosine receptors in the brain, reducing fatigue and increasing alertness.

2

Catechin antioxidants

Green tea catechins scavenge free radicals and support the body's antioxidant defenses.

Clinical trials

1
Caffeine and Endurance Performance — Meta-Analysis
PubMed

Systematic review and meta-analysis of caffeine intake on endurance performance. (Wang et al. 2022, Nutrients)

Adults across multiple trials.

Caffeine improved endurance performance and time to exhaustion versus placebo.

Side effects and drug interactions

Common Potential side effects

Can cause jitteriness, rapid heartbeat, or trouble sleeping.
Avoid late in the day if caffeine-sensitive.
Account for caffeine from all sources.

Important Drug interactions

Stimulant medications — additive effects; use caution.
Some antibiotics and antidepressants slow caffeine clearance.
Pregnancy — limit caffeine; consult a doctor.

Frequently asked questions about PurTea® (Organic Green Tea Caffeine — Applied Food Sciences)

What is PurTea?

PurTea® is an organic green tea (Camellia sinensis) extract from Applied Food Sciences, providing naturally sourced caffeine along with green tea catechins. It offers a clean-label, smoother source of caffeine for energy, with the antioxidant benefits of green tea polyphenols.

What is PurTea used for?

PurTea is researched primarily for Energy, Athletic Performance, and Antioxidant. Caffeine reliably increases alertness, focus, and perceived energy, here from a natural, organic green tea source.

What is the recommended dosage of PurTea?

The clinically studied dose is Commonly 100 to 200 mg of caffeine per serving. Always follow the product label and check with a healthcare provider for personal advice.

Is PurTea safe, and does it have side effects?

For most healthy adults, PurTea is well tolerated at studied doses. Reported effects can include: Can cause jitteriness, rapid heartbeat, or trouble sleeping. Avoid late in the day if caffeine-sensitive. It may also interact with some medications. PurTea is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does PurTea interact with any medications?

Possible interactions include: Stimulant medications — additive effects; use caution. Some antibiotics and antidepressants slow caffeine clearance. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for PurTea?

NutraSmarts rates the evidence for PurTea as Moderate (3 out of 5). It is backed by 1 clinical trial and 1 cited reference summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Wang Z, Qiu B, Gao J, et al. Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis. Nutrients. 2022;15(1)..PubMedUsed to support: Meta-analysis supporting energy and performance benefit of caffeine (the active in PurTea).