Product Page - Caffeine and L-Theanine

Natural Calm and Focused Productivity.

Several studies have found the combination of Caffeine and L-Theanine to reduce distractions and improve attentiveness.

Normally, when we drink caffeine, it is possible to get over-stimulated. L-Theanine counter-acts these jittery side-effects, keeping you in the optimal "focus zone" for work flow.


150mg of Caffeine: The same amount you would get in a Starbucks latte.

300mg of L-Theanine: An amino acid found in green tea that counter-acts the jittery effects of caffeine.


Take 1 vegetarian capsule per day, with a meal for optimal absorption. To avoid developing a tolerance to it, do not take more than 2 capsules per day.

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Frequently asked questions:

Our products have received over 250 amazing, third-party verified, five-star reviews read them here.

  • Our ingredients must be clean - We do not use any artificial fillers or tablet binding agents (that's why we use vegetarian capsules, instead).
  • Our ingredients must be natural - We use ingredients derived from plants or minerals. i.e. in our Meno Complex we include 4 different herbs.
  • Our ingredients must be scientifically proven to be effective - Our ingredients have scientific studies backing their benefits.

Yes, absolutely! All of our products use non-animal derived ingredients.

Our food supplements also use 2 types of vegan-friendly capsules:  HPMC vegetarian capsules and Pullulan capsules (which are untouched by any chemical processes!)

We ensure that each batch of our raw ingredients is lab-tested for purity and cleanliness before we use it.

Safety tests include microbial, pesticide, and heavy metals testing.

We work with several reputable UK and overseas suppliers that we have built trusted relationships with over the years. For example, our Broccoli extract comes from an USA-based supplier.

Within the United Kingdom, flat rate shipping is free and delivered in 3-6 business days. Our shipping provides emailed (or texted) updates on each step of the shipment (order received, order dispatched, order out for delivery, etc.)

Please know that shipping is busier than usual this year. With many brick-and-mortar stores closing due to COVID-19, people are shopping online more than ever. This is causing a nationwide slowdown in deliveries.

Unfortunately, these delays are out of our control. We continuously monitor this situation and update delivery estimates on our checkout page accordingly.

Due to the closure of many brick-and-mortar stores in 2020, fulfillment centers and shipping carriers are busier than usual.

Please allow 1-4 business days for your order to process and ship, then the full estimated delivery window for receipt. Thank you for your patience and understanding.

We do not currently auto-ship or offer any product subscriptions.

Order only what you want, when you want through our online Lifetropics store.

Currently we do not ship internationally, although we plan to in the third quarter of 2021.


[1] Kimmatkar, N., V. Thawani, L. Hingorani, and R. Khiyani. 2003. ‘Efficacy and Tolerability of Boswellia Serrata Extract in Treatment of Osteoarthritis of Knee – A Randomized Double Blind Placebo Controlled Trial’. Phytomedicine 10(1): 3–7. (June 14, 2021).

[2] Vishal, Amar A., Artatrana Mishra, and Siba P Raychaudhuri. 2011. ‘A Double Blind, Randomized, Placebo Controlled Clinical Study Evaluates the Early Efficacy of Aflapin ® in Subjects with Osteoarthritis of Knee’. International Journal of Medical Sciences 8(7): 615–22. (June 14, 2021).

[3] Grover, Ashok Kumar, and Sue E. Samson. 2015. ‘Benefits of Antioxidant Supplements for Knee Osteoarthritis: Rationale and Reality’. Nutrition Journal 15(1): 1. (June 14, 2021).