Caffeine L-Theanine Capsules | 60 Count

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Buy 2 - 4 and pay only $7.99 each
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  • Caffeine L-Theanine  Capsules | 60 Count
  • Caffeine L-Theanine  Capsules | 60 Count
Now: $9.99
Was: $12.99


Hard Rhino Caffeine L-Theanine capsules contain pure form powder with no unnecessary excipients or fillers packaged inside a vegetarian cellulose capsule.

The synergistic effects of Caffeine and L-Theanine may help with energy and alertness throughout the day. This combination can help support a productive day by keeping you focused on the task at hand.

Directions & Allergens

Suggested Use: 

Healthy adults may take one serving (1 capsule) daily as a dietary supplement for energy and endurance. DO NOT consume more than 2 servings in one day.

Other Ingredients:

Rice Flour (excipient), Vegetarian Cellulose (capsules), Magnesium Stearate (excipient), Silicon Dioxide (excipient).


This is a NON-GMO ingredient manufactured using organic starting ingredients.


This product contains no Soy, Dairy, Dairy byproducts, Eggs, Fish, Shellfish, Wheat, Gluten, Tree Nuts, or Sesame Seeds.


Store in a cool, dry place. Re-seal bottle immediately after use to preserve freshness.

Labels & Instant COA

60 Count:


Statements & Warnings

† These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.

Keep out of the reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s). Always consult with a qualified health physician before taking any new dietary supplement.

Meet Sade

Sade is one of our capsule checkers. She works almost every day including weekends and holidays. 24 hours a day, seven days a week. Her job is essential for ensuring every capsule we fill is the correct weight to within +/- 3mg. As part of our comprehensive quality processes, we check every capsule we fill.


Instant COA

Another Hard Rhino exclusive is the “Instant COA” (Certificate of Analysis). We are building a customer facing interface that will allow you to view product COA's on any mobile device. Simply scan the Quick Response (QR) code on the Hard Rhino product label and instantly view the lab reports.

Please note this is an ongoing effort. We produce hundreds of products and we keep COA’s, lab sheets, production reports and other internal records forever. It will take time to convert all of them. Meanwhile, for archived COA's please click here to request a copy.



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3 Reviews

  • 5
    Caffeine L-Theanine

    Posted by Jacob Meadows on 5th Jul 2019

    The product provided a non jittery energy.

  • 3
    Hard Rhino

    Posted by James Smith on 4th Jul 2019

    I've been taking one a day since receiving them haven't really noticed any change yet. Not sure if it takes awhile to start working but I'm trying them

  • 5
    Synergy is a wonderful thing!

    Posted by Germain Giner on 10th Jul 2014

    Caffeine and L-Theanine, great combination! Stay alert without a tremor, without that upped startle reflex and blood pressure.

    I keep a few capsules in my tool bag, some in the car would not be amiss for those long drives, either.

    The proportions in the HardRhino product hit the spot for me, really can't say enough about this one--

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