Tyrosine is a natural isolated nutrient and the building block for dopamine. World's 1st natural 800mg tyrosine capsule from fermented corn.
Theanine is a natural nutrient extracted from green tea that promotes feelings of calm by increasing relative concentrations of your relaxation chemical, GABA[1]. Its fast-acting, non-sedative properties make it ideal for those looking to relax and maintain mental clarity.
They are free from unnecessary bulking agents and are manufactured in an FDA-registered facility in the UK under strict GMP, ISO 9001, and ISO 22000 certified conditions.
benefits of L-tyrosine and L-theanine
Tyrosine is a natural isolated nutrient and the building block to your reward and pleasure chemical messenger; dopamine [2].When dopamine levels are high, you may experience more pleasure from activities and are more likely to feel the reward after completing a task [3].Increased dopamine levels have also been linked to motivation and alertness [4,5]
Responsible for green tea’s calming effects, theanine is a naturally occurring amino acid. Theanine easily crosses the blood-brain barrier and increases the relative concentrations of your relaxation chemical GABA within 30 minutes of ingestion [6,7]. The effects last around 90 minutes [8]. Each capsule contains the same amount of ltheanine found in 15-20 cups of green tea.
what is the difference between L-theanine and L-tyrosine?
Whilst L-tyrosine increases dopamine, L-theanine increases the relative concentrations of your relaxation chemical GABA. Dopamine and GABA play different roles in the body. Dopamine is linked to motivation and pleasure, while GABA is associated with relaxation.
[1]Jenkins, T. A., Nguyen, J. C. D., Polglaze, K. E., & Bertrand, P. P. (2016). Influence of Tryptophan and Serotonin on Mood and Cognition with a Possible Role of the Gut-Brain Axis. Nutrients, 8(1), 56. https://www.mdpi.com/2072-6643/8/1/56
[8] Chen, S., Kang, J., Zhu, H., Wang, K., Han, Z., Wang, L., Liu, J., Wu, Y., He, P., Tu, Y., & Li, B. (2023). L-Theanine and Immunity: A Review. Molecules, 28(9), 3846. https://www.mdpi.com/1420-3049/28/9/3846
purity promise™
Purity has four components:
1. brain feed ensures the high quality of our extracts and isolates through rigorous testing 2. We monitor critical control points during production for quality control 3. We guarantee the amount of active ingredient(s) 4. preserve the bio-active compounds for the duration of their shelflife.
Can I take L-theanine and L-tyrosine together ? +-
Yes you can take l theanine and l tyrosine together. They work on different chemical pathways and they do not contraindicate. There may be a synergistic benefit of taking them in combination however, the synergistic benefit at these specific mg dosages hasn't been studied in clinical trials.
How/when should i take them?+-
Take 1 capsule 800mg tyrosine with or without food. Dopamine plays an important role in alertness and motivation and is often taken in the morning but some people take it before going to the gym.
Take 1 l theanine capsule per day.
Customer Reviews
Overall rating: 4.2 / 5 from 246 reviews.
I’ve been taking this for the past few days and definitely feel a difference in my energy and focus. It is very effective for sure
I weight 107 lbs. and I'm very active. I've been taking 500 mg with success, however, my first day with the 800 mg is not going well. My vision is off; It's blurry.
Store owner replied:
Hi Rhenda,
Thank you for reaching out. The symptoms you have mentioned might be indicative of an underlying health condition, and we would recommend that you speak to your GP if these symptoms persist. Impaired vision is not a reported side effect of L-tyrosine. If there is anything else I can help you with, please let me know. Kind regards, Christine brain feed customer care
Hello,
I just haven’t noticed any change…
I need to rethink how I move forward..
Thanks
Store owner replied:
Hi S- Thank you for your feedback. What is it that you were hoping to achieve? This innovation was the world’s first natural 800mg tyrosine capsule and is the building block for your reward & pleasure chemical, dopamine. If you email info@brain-feed.com with your health requirements, one of our friendly experts might be able to help. Kind regards, Christine [brain-feed customer services]
I noticed a benefit within days of taking this supplement. Energy, mood and libido increased. I took larger does, several capsules a couple times a day. On an empty stomach.
Store owner replied:
Hi Emily, Thank you for your brain feed purchase and apologies for the delay in receiving it. If you have still not received your item please reach out to info@brain-feed.com for additional support. Thank you for your patience and understanding. [Christine - brain feed customer services]
Store owner replied:
Hi Dave - I'm sorry you feel like this. This innovation was the world’s 1st natural 800mg tyrosine capsule and is still the best in class tyrosine product available. If you email info@brain-feed.com with your health requirements one of our experts might be able to help. Kind regards, Christine [brain-feed customer services]
Store owner replied:
Hi Alex - please speak to your doctor at the earliest opportunity. Your symptoms might be indicative of an underlining health condition.
I bought this product because I thought it would improve my labido. The medication did not help. Also, it gave me really bad headaches!
Store owner replied:
Hi Marcos - This is a dopamine precursor. I am sorry this wasn't the product you were looking for. Kind regards, Christine [brain feed customer services]
Store owner replied:
Hi Cindy,
Thank you for your feedback and I'm sorry that you have been struggling with fatigue and nausea. Please see to your GP if symptoms persist as they might be indicative of an underlining health condition.
[Christine - brain feed customer services]
Store owner replied:
Hi Mb - I'm sorry you feel like this. This innovation was the world’s 1st natural 800mg tyrosine capsule and is still the best in class tyrosine product available. If you email info@brain-feed.com with your health requirements one of our experts might be able to help. Kind regards, Christine [brain-feed customer services]
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