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Proper Wild's clean all day energy shots are made with clean ingredients Proper Wild's clean all day energy shots are made with clean ingredients

Clean Ingredients Backed by Science

Caffeine & L-Theanine

Energy & Focus Without
the Jitters

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180 mg Organic Caffeine
180 mg L-Theanine

Pile of organic green tea leaves

Our Organic Caffeine comes from Green Tea and is one of the purest available. Our L-Theanine (a naturally occurring amino acid also found in Green Tea) is produced through an enzyme assisted process that uses Green Tea leaves as one of several starting materials, which allows us to increase its purity and benefits to the user.

Multiple studies support that using Caffeine and L-Theanine together can reduce jitters and heighten concentration and cognitive alertness, while also boosting your mood.

It’s this combination of Caffeine and L-Theanine that makes Green Tea Leaves one of the world's most powerful cognitive boosters when used at the correct dosage.

Research by the Numbers

Number of Studies

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Years of Studies

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Scientific Studies

Caffeine L-Theanine Caffeine & L-Theanine
Einöther SJ, Giesbrecht T. Caffeine as an attention enhancer: reviewing existing assumptions. Psychopharmacology (Berl). 2013 Jan; 225(2):251-74.
Johnson LC, Spinweber CL, Gomez SA. Benzodiazepines and caffeine: effect on daytime sleepiness, performance, and mood. Psychopharmacology (Berl). 1990; 101(2):160-7.
Smith A, Kendrick A, Maben A, Salmon J. Effects of breakfast and caffeine on cognitive performance, mood and cardiovascular functioning. Appetite. 1994 Feb; 22(1):39-55.
Smith AP, Kendrick AM, Maben AL. Effects of breakfast and caffeine on performance and mood in the late morning and after lunch. Neuropsychobiology. 1992; 26(4):198-204.
Smith BD, Davidson RA, Green RL. Effects of caffeine and gender on physiology and performance: further tests of a biobehavioral model. Physiol Behav. 1993 Sep; 54(3):415-22.
Warburton DM Effects of caffeine on cognition and mood without caffeine abstinence. Psychopharmacology (Berl). 1995 May;119(1):66-70.
Show all 8 Studies

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