Caffeine 100mg + L-Theanine 150mg Capsules

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L-Theanine and Caffeine are powerful energizing compounds found in mushrooms/tea and in coffee, respectively. Combining the two supplements provides synergistic effects. Caffeine has the chemical formula C8H10N4O2, while L-Theanine has the formula C7H14N2O3.

Caffeine + L-Theanine Benefits and Uses

L-Theanine is a fairly rare phytochemical and a non-dietary amino acid found primarily in a small number of mushrooms and in a tea plant called Camellia sinensis. Caffeine is a purine alkaloid and it is found predominantly in Coffea arabica, and has powerful stimulatory effects on the central nervous system. Scientific evidence suggests that the two compounds interact well together.

Scientific Consensus

Several clinical studies and meta-analyses have been conducted to elucidate the effects of the combination of these two compounds. The results tend to indicate an improvement in cognitive performance above and beyond what either supplement offers when taken in isolation. Nevertheless, further research is needed to fully understand the significance of the benefits of this supplement combination.

Warning: Caffeine can cause potential health risks if taken in excess. Do not exceed the recommended serving size and never exceed 400 mg of caffeine per day. Remember that coffee, tea and energy drinks contain significant amounts of caffeine – and this needs to be considered when consuming a dietary supplement that contains caffeine.

DO NOT EXCEED THE RECOMMENDED SERVING SIZE. Use with caution. Do not use if pregnant or breastfeeding.

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The statements on this page have not been evaluated by the FDA. The products on this page are not intended to diagnose, treat, cure, or prevent any disease.
December 10, 2023
Caffeine 100mg + L-Theanine 150mg Capsules

I’m very caffeine sensitive so this is perfect for me. The effects are much nicer than caffeine alone

October 15, 2023
Edwin Crim
Caffeine 100mg + L-Theanine 150mg Capsules

I love the fact that this product works to wake me up just enough without the jitters. I highly recommend it.

August 31, 2023
Felipe Perez
Caffeine 100mg + L-Theanine 150mg Capsules

It help keep you focused and alert without the jitters. Great Product.

August 24, 2023
Jason Clymer
Caffeine 100mg + L-Theanine 150mg Capsules

Great, clean product. Comes with testing results for purity. Definitely the best around. Customer for life!

Serving size is 1 capsule. As a dietary supplement, take 1-2 servings up to 2 times per day. Please start with the lowest suggested single serving quantity to assess response.

Supplement Facts

Serving size: 1 Capsule
Servings per container:
Amount per serving: % DV


100 mg


150 mg
LiftMode offers a variety of unit sizes of HPLC-tested Caffeine 100mg + L-Theanine 150mg Capsules, including a a 7ct unit, a 15ct unit, a 70ct unit, a 150ct unit and a 300ct unit. Our Caffeine 100mg + L-Theanine 150mg Capsules is of the highest quality.
Free from additives and fillers
Gluten Free
HPLC Lab tested
Money back guarantee
Science backed

Scientifically Tailored Ingredients

Caffeine is a natural stimulant found in coffee, tea and mate. Caffeine stimulates the central nervous system, which wards off drowsiness and restores alertness. Caffeine can act as an appetite suppressant. Additionally, caffeine may increase calorie burning to a small degree and acts as a diuretic.

* Boosts Energy
* Sharpens Cognition
* Improves Focus

L-Theanine is a naturally occurring nutrient found in tea, and is used as an ingredient in dietary supplement products.

Studies suggest that L-Theanine may help reduce mental and physical stress, improve cognition and boost mood. L-Theanine is unique in supporting a calm mood while at the same time enhancing a sense of clarity and focus.

– Reduces Stress
– Boosts Cognition
– Calming

Einöther, S. J., & Martens, V. E. (2013). Acute effects of tea consumption on attention and mood. American Journal of Clinical Nutrition, 98(6 Suppl):1700S-1708S.

Temple, J. L., Bernard, C., Lipshultz, S. E., Czachor, J. D., Westphal, J. A., & Mestre, M. A. (2017). The Safety of Ingested Caffeine: A Comprehensive Review. Frontiers in Psychiatry, 8.

Dodd, F. L., Kennedy, D. O., Riby, L. M., & Haskell-Ramsay, C. F. (2015). A double-blind, placebo-controlled study evaluating the effects of caffeine and L-theanine both alone and in combination on cerebral blood flow, cognition and mood. Psychopharmacology (Berl), 232(14):2563-76.

Giesbrecht, T., Rycroft, J. A., Rowson, M. J., & De Bruin, E., A. (2010). The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutr Neurosci, 13(6):283-90.

Haskell, C.F., Kennedy, D. O., Milne, A. L., Wesnes, K. A., & Scholey, A. B. (2008). The effects of L-theanine, caffeine and their combination on cognition and mood. Biol Psychol, 77(2):113-22.