TyroPhen

• Dopamine synthesis*
• Thyroid hormone production support*
• Improved motivation*
• Improved focus*
• Attention deficit assistance*
• Regulation of reward-seeking behavior*
• May assist with addiction-alleviation*
• Aids melanin production*
• Adrenal support*
• Prolactin lowering*
• Serotonin lowering*

*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.

Each bottle contains: 90 capsules
Servings per container: 90

Each capsule contains:
L-Tyrosine: 225mg
DL-Phenylalanine: 225mg

Other ingredients: gelatin (bovine)

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.

8. Riley PA. Melanin. Int J Biochem Cell Biol. 1997 Nov;29(11):1235-9. doi: 10.1016/s1357-2725(97)00013-7. PMID: 9451820.

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.