TyroPhen combines high-purity L-Tyrosine and DL-Phenylalanine, amino acid precursors involved in dopamine and thyroid hormone production. A clean, filler-free formula designed to support motivation, focus, metabolism, and energy.
*These Statements have not been evaluated by the Food and Drug Association, or Health Canada. These products are not meant to diagnose, treat, cure, or prevent any diseases.
Take 1 capsule daily, with or without food, during daylight hours. Best taken before spending time outdoors in natural light for dopamine activation.
1. Coull JT, Hwang HJ, Leyton M, Dagher A. Dopamine precursor depletion impairs timing in healthy volunteers by attenuating activity in putamen and supplementary motor area. J Neurosci. 2012 Nov 21;32(47):16704-15. doi: 10.1523/JNEUROSCI.1258-12.2012. PMID: 23175824; PMCID: PMC6621775.
2. During MJ, Acworth IN, Wurtman RJ. Phenylalanine administration influences dopamine release in the rat's corpus striatum. Neurosci Lett. 1988 Oct 31;93(1):91-5. doi: 10.1016/0304-3940(88)90018-3. PMID: 3211373.
3. Roiser JP, McLean A, Ogilvie AD, Blackwell AD, Bamber DJ, Goodyer I, Jones PB, Sahakian BJ. The subjective and cognitive effects of acute phenylalanine and tyrosine depletion in patients recovered from depression. Neuropsychopharmacology. 2005 Apr;30(4):775-85. doi: 10.1038/sj.npp.1300659. PMID: 15688090; PMCID: PMC2631648.
4. Hardman CA, Herbert VM, Brunstrom JM, Munafò MR, Rogers PJ. Dopamine and food reward: effects of acute tyrosine/phenylalanine depletion on appetite. Physiol Behav. 2012 Mar 20;105(5):1202-7. doi: 10.1016/j.physbeh.2011.12.022. Epub 2011 Dec 30. PMID: 22230253.
5. Hitsman B, MacKillop J, Lingford-Hughes A, Williams TM, Ahmad F, Adams S, Nutt DJ, Munafò MR. Effects of acute tyrosine/phenylalanine depletion on the selective processing of smoking-related cues and the relative value of cigarettes in smokers. Psychopharmacology (Berl). 2008 Mar;196(4):611-21. doi: 10.1007/s00213-007-0995-5. Epub 2007 Nov 25. PMID: 18038222.
6. Lou HC. Dopamine precursors and brain function in phenylalanine hydroxylase deficiency. Acta Paediatr Suppl. 1994 Dec;407:86-8. doi: 10.1111/j.1651-2227.1994.tb13461.x. PMID: 7766968.
7. Fernstrom JD, Fernstrom MH. Tyrosine, phenylalanine, and catecholamine synthesis and function in the brain. J Nutr. 2007 Jun;137(6 Suppl 1):1539S-1547S; discussion 1548S. doi: 10.1093/jn/137.6.1539S. PMID: 17513421.
9. Iuvone PM. Regulation of retinal dopamine biosynthesis and tyrosine hydroxylase activity by light. Fed Proc. 1984 Sep;43(12):2709-13. PMID: 6147273.
10. Elkin RG, Featherston WR, Rogler JC. Effects of dietary phenylalanine and tyrosine on circulating thyroid hormone levels and growth in the chick. J Nutr. 1980 Jan;110(1):130-8. doi: 10.1093/jn/110.1.130. PMID: 7354377.
11. H.L. Wang, V.H. Harwalkar, H.A. Waisman, Effect of dietary phenylalanine and tryptophan on brain serotonin, Archives of Biochemistry and Biophysics, Volume 97, Issue 1, 1962, Pages 181-184, ISSN 0003-9861, https://doi.org/10.1016/0003 9861(62)90062-0.
TyroPhen
TyroPhen
Main Benefits
Dopamine, thyroid, and motivation — from the ground up.
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More motivation & drive
Directly supplies the amino acid precursors the brain uses to synthesise dopamine — the neurotransmitter of drive, reward, and focus.
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Better thyroid function
Thyroid hormone is made from iodine and tyrosine — TyroPhen supplies the amino acid substrate the thyroid depends on.
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Lower excess serotonin
DL-Phenylalanine — not tyrosine alone — reduces excess serotonin in the brain and body for better mood and metabolic balance.
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Works with sunlight
Natural light catalyses tyrosine's conversion to dopamine — take TyroPhen before sun exposure for a synergistic effect.
The Problem
Low dopamine and poor thyroid function share the same root cause.
When the diet is low in tyrosine and phenylalanine, both the dopamine pathway and thyroid hormone synthesis are limited at the most fundamental level. The result shows up as low motivation, poor focus, sluggish metabolism, and mood dysregulation.
TyroPhen addresses this directly — supplying L-Tyrosine and DL-Phenylalanine to fuel the dopamine and thyroid pathways from their shared amino acid root.
✓Precursor to dopamine & catecholamines
✓Supports thyroid hormone (T3 & T4) synthesis
✓Reduces excess serotonin via phenylalanine
✓Supports melanin production & photoprotection
The Science
Why your body needs TyroPhen.
The Backstory
Two amino acids. Two of the most important pathways in the body.
L-Tyrosine and DL-Phenylalanine are both precursors to dopamine and thyroid hormone — two systems that govern motivation, metabolism, focus, and mood. The pathways are direct:
Supplying both amino acids ensures the body has immediate Tyrosine available — plus Phenylalanine as a reserve to synthesise more as needed.
The Dopamine Story
Dopamine isn't just about reward — it's about regulation.
Dopamine governs more than excitement. It also determines whether we feel over-stimulated, compulsively drawn to things that don't serve us, or able to find satisfaction in ordinary life.
Clinical researchers study this by temporarily depleting tyrosine and phenylalanine in test subjects. In these depleted states, participants showed faster reaction times and notably less inclination toward addictive behaviours like smoking — suggesting balanced dopamine function is about calibration, not just stimulation.
Tyrosine, Melanin & Light
Tyrosine is a light-absorbing amino acid.
Tyrosine is a critical component of melanin — the pigment in hair, skin, and eyes. The enzyme tyrosinase converts tyrosine into melanin as its first and rate-limiting step.
Natural light exposure also promotes the conversion of tyrosine into dopamine — which is why TyroPhen is best taken before time spent outdoors. Sunlight and this formula work in tandem.
Why Both Matter
Phenylalanine does something Tyrosine can't.
Tyrosine is non-essential — the body can make it, but only by converting Phenylalanine, which is essential and must come from the diet. Consuming both ensures the body has direct Tyrosine available while replenishing the precursor reserve.
There's another reason Phenylalanine specifically matters: research shows that dietary Phenylalanine — not Tyrosine — is the form that can lower serotonin in the body and brain. For those familiar with the work of Dr. Ray Peat on the downstream effects of excess serotonin, this distinction is significant.
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Not just tyrosine. TyroPhen.
Our TyroPhen
L-Tyrosine + DL-Phenylalanine — immediate supply and precursor reserve
›Why include phenylalanine if the goal is tyrosine?
Phenylalanine is an essential amino acid the body cannot make, and is the precursor to tyrosine. Supplying both ensures immediate tyrosine availability and a reserve of building blocks to make more. Additionally, phenylalanine specifically has been shown to lower brain serotonin, which tyrosine alone does not.
›How does tyrosine support thyroid function?
Thyroid hormone is literally made from iodine and tyrosine. Iodine attaches to tyrosine to form T1 and T2, which then combine to make T3 and T4. Without adequate tyrosine, thyroid hormone production is limited at the most basic level.
›Why is it recommended to take TyroPhen before going outside?
Natural light exposure catalyzes the conversion of tyrosine into dopamine. Taking TyroPhen before sunlight maximizes this pathway, offering a natural, synergistic dopamine boost.
›What does tyrosine have to do with hair and skin color?
Tyrosine is the precursor to melanin, the pigment responsible for hair, skin, and eye color. The enzyme tyrosinase converts tyrosine into melanin — making tyrosine a literal building block of your body's light-absorbing pigments.
Build dopamine and thyroid from the ground up.
99%+ pure. Filler-free. The complete precursor pair.
My Wife loves this product
I recently bought this to try. As usual my wife starting using it as soon as I brought it home. The next morning she said "Wow, that stuff worked, it kept here focused for hours" She then proceeded to let me know she is keeping the bottle. Lol
So, I can't say if it works, I never had a chance.
Dr. Michel
Literally Life Changing!!!!
This product is unlike anything I have ever had. I was recently diagnosed with ADHD and I heard reviews about this product being great for it. I am over the moon excited to have this in my life. Pairing this with natural sunlight makes everyday seem more enjoyable, manageable and clearer. I am able to do tasks with ease where before I felt stuck and unable to do anything. I am so thankful and grateful for this product and all the other amazing products from Lifeblud. It pairs well with Toro and I also take Energy+ and feel like a superstar everyday.
Natural thyroid support
This has been a great just in case supplement, that I’m using to support my thyroid while tapering down a prescription for thyroid that I don’t actually need.
Who Knows?
It is so hard to tell if a supplement is making a difference - so may need more time. At any rate, I trust LifeBlud and love that there are no unnecessary additives and fillers.
L-Tyrosine & L-Phenylalanine
Products are very well-sourced without unwanted fillers and synergistically compatible.....interesting combination........
Greatest supplement yet!
Super beneficial with mood stablization and giving energy as well really enjoy taking it before a workout seems to keep me going with less fatigue.
My life has upgraded
I have done a lot for my health in the last decade, but nothing impacts my brain energy and executive function quite like tyrophen does. I've been taking it for a week now and every single day I've gotten mutiltudes more done with my business, housework, and general tasks than I typically do. I didn't realize how much my brain function was getting in my way until now that the cloud has lifted. I just ordered 6 more bottles and I plan to recommend this product to every single client of mine struggling with attention, motivation, and getting things done.
ADHD support
I saw positive reviews about this helping with adhd symptoms so I bought it for my 17 year old. She normally is reluctant to take supplements but she takes this every day. She notices positive changes in her motivation and attention at school. I will reorder again and again!
Great customer service
I haven’t started using it yet, as I just received it, but the customer service is impeccable. My original order was delivered but did not reach me (maybe the work of some cheeky kids?:), and they sent me another one within a couple of days. Thank you LifeBlood, look forward to trying the product and reviewing it.
Tyrophen
I’ve been taking all three for a few months and they have helped with my stress and sleeping better, I suffer from hypothyroidism so am hoping they will help with this as well
Thank you for adding this to Favourite Ray Peat Supplements
My daughter and I love this. I take half in the morning and a full capsule after I had my latte.
Finding natural thyroid boosters and not having many options as well and the immunity boosting affects due to more dopamine...burning off viruses or what ever the truth is or word about what we usual mean in regards to keeping our bodies clean... it keeps us fit. I love the theanine capsules too.
Thank you Adam. ❤️🙏🏻
Not for everyone
I was extremely hopeful these would help with some symptoms from thyroid disfunction but unfortunately for me it was a bad experience. This caused heart severe heart palpitations and insomnia, which is a more common side effect than I was aware of before I ordered. I tried for 10 days but could not handle the heart palpitations any longer. This will not be everyone’s experience but it was for me.
Helped calm Parkinsons symptoms of anxiety
Helped calm my mother she is often very anxious and unable to relax. One pill and she was able to nap for 2 hours and has told me she feels a lot calmer.
