{"id":410,"date":"2024-01-18T17:42:32","date_gmt":"2024-01-18T17:42:32","guid":{"rendered":"https:\/\/alther-native.com\/index.php\/product\/amino-acids-2\/"},"modified":"2025-03-10T21:48:20","modified_gmt":"2025-03-10T20:48:20","slug":"amino-acids-2","status":"publish","type":"product","link":"https:\/\/alther-native.com\/index.php\/product\/amino-acids-2\/","title":{"rendered":"Amino Acids – Tyrophen"},"content":{"rendered":"

Supplement Facts:
\n<\/strong>Servings per container:\u00a090
\nServing size: 1 capsule<\/p>\n

Each capsule contains:<\/strong>
\nL-Tyrosine: 225mg
\nL-Phenylalanine: 225mg<\/p>\n

Other ingredients:<\/strong>\u00a0gelatin (bovine)<\/p>\n

L-Tyrosine & L-Phenylalanine –\u00a0Dopamine & Thyroid Precursors<\/strong><\/p>\n

The most significant and studied aspects of L-Tyrosine and L-Phenylalanine are that they are both amino acids that are precursors to Dopamine, and Thyroid hormone.<\/p>\n

The building blocks of thyroid hormone production<\/strong>:
\nIodine + Tyrosine --> monoiodotyrosine (T1) and diiodotyrosine (T2)
\nT1 + T2 --> T4 (thyroxine) & T3 (triiodothyronine, needs selenium too)<\/p>\n

The biological pathway to dopamine (mediated by enzymes):<\/strong>
\nL-Phenylalanine --> L-Tyrosine --> L-Dopa --> Dopamine.<\/p>\n

Dopamine<\/strong>\u00a0is one of those buzzwords that gets thrown around very often in day-to-day scenarios. Not always completely out of context, but many times missing the larger picture.<\/p>\n

While dopamine is involved in us getting rewarded and excited by things, it also plays an important role in us\u00a0not getting over-rewarded<\/strong>, or feeling rewarded or stimulated by things that are not necessarily serving us for the better.<\/p>\n

The ways that this is studied in clinical trials, interestingly, is by creating a Tyrosine and Phenylalanine deficiency in patients or animal models and then applying the stimulus or variable that they are wishing to test. Some fascinating results of studies like this have been\u00a0quicker reaction time\u00a0<\/strong>and\u00a0less inclination towards smoking<\/strong>.<\/p>\n

Another fascinating aspect of L-Tyrosine is that it is a crucial component in the production of\u00a0melanin<\/strong>. \u00ab\u00a0The critical step in melanin biogenesis is the oxidation of tyrosine by the enzyme tyrosinase<\/em>.\u00a0\u00bb Riley, P. (1997).<\/p>\n

This means that Tyrosine in a sense is a\u00a0light-absorbing<\/strong>\u00a0amino acid, and\u00a0helps us produce pigment for our hair and skin<\/strong>. It’s important to note as well, that our exposure to natural light also helps promote the conversion of tyrosine into dopamine.<\/p>\n

It may seem that Tyrosine is the main goal – but here’s why consuming Phenylalanine is still beneficial and important:\u00a0<\/strong><\/p>\n

While Tyrosine can be synthesized in the human body, it is created by converting Phenylalanine, which cannot be synthesized and must come from the diet.<\/p>\n

Therefore, we can deduce the importance of consuming Phenylalanine but also understand the importance of Tyrosine itself. Consuming both amino acids allows the body to have some supply of Tyrosine, but also to have a reserve of its building block in the case it should need to convert more.<\/p>\n

Moreover, a study by Wang, H. L. (1962) called \u00ab\u00a0Effect of dietary phenylalanine and tryptophan on brain serotonin<\/strong>\u00a0\u00bb\u00a0<\/em>showed that not dietary Tyrosine, but Phenylalanine consumption was able to lower body and brain serotonin. If you have studied or are a fan of the work of Dr. Ray Peat, and his extensive explanations on serotonin and its harmful effects in excess, then you will appreciate the value in that.<\/p>\n

As Fernstrom, J. (2007) says \u00ab\u00a0physiologic factors that influence brain pools of these amino acids, notably diet, influence their rates of conversion to neurotransmitter products, with functional consequences.<\/em>\u00a0\u00bb<\/p>\n

L-Phenylalanine & L-Tyrosine Benefits:
\n<\/strong>
\n– Dopamine synthesis
\n– Thyroid hormone production support
\n–\u00a0Improved motivation
\n– Improved focus
\n– Attention deficit assistance
\n–\u00a0Regulation of reward-seeking behavior
\n– May assist with addiction-alleviation
\n– Aids melanin production
\n– Adrenal support
\n– Prolactin lowering
\n– Serotonin lowering<\/p>\n

References:<\/strong><\/p>\n

1. Coull JT, Hwang HJ, Leyton M, Dagher A.\u00a0Dopamine precursor depletion impairs timing in healthy volunteers by attenuating activity in putamen and supplementary motor area.<\/strong>\u00a0J Neurosci. 2012 Nov 21;32(47):16704-15. doi: 10.1523\/JNEUROSCI.1258-12.2012. PMID: 23175824; PMCID: PMC6621775.<\/p>\n

2.\u00a0During MJ, Acworth IN, Wurtman RJ.\u00a0Phenylalanine administration influences dopamine release in the rat’s corpus striatum.<\/strong>\u00a0Neurosci Lett. 1988 Oct 31;93(1):91-5. doi: 10.1016\/0304-3940(88)90018-3. PMID: 3211373.<\/p>\n

3.\u00a0Roiser JP, McLean A, Ogilvie AD, Blackwell AD, Bamber DJ, Goodyer I, Jones PB, Sahakian BJ.\u00a0The subjective and cognitive effects of acute phenylalanine and tyrosine depletion in patients recovered from depression.<\/strong>\u00a0Neuropsychopharmacology. 2005 Apr;30(4):775-85. doi: 10.1038\/sj.npp.1300659. PMID: 15688090; PMCID: PMC2631648.<\/p>\n

4.\u00a0Hardman CA, Herbert VM, Brunstrom JM, Munaf\u00f2 MR, Rogers PJ.\u00a0Dopamine and food reward: effects of acute tyrosine\/phenylalanine depletion on appetite.<\/strong>\u00a0Physiol Behav. 2012 Mar 20;105(5):1202-7. doi: 10.1016\/j.physbeh.2011.12.022. Epub 2011 Dec 30. PMID: 22230253.<\/p>\n

5.\u00a0Hitsman B, MacKillop J, Lingford-Hughes A, Williams TM, Ahmad F, Adams S, Nutt DJ, Munaf\u00f2 MR.\u00a0Effects of acute tyrosine\/phenylalanine depletion on the selective processing of smoking-related cues and the relative value of cigarettes in smokers.<\/strong>\u00a0Psychopharmacology (Berl). 2008 Mar;196(4):611-21. doi: 10.1007\/s00213-007-0995-5. Epub 2007 Nov 25. PMID: 18038222.<\/p>\n

6.\u00a0Lou HC.\u00a0Dopamine precursors and brain function in phenylalanine hydroxylase deficiency.<\/strong>\u00a0Acta Paediatr Suppl. 1994 Dec;407:86-8. doi: 10.1111\/j.1651-2227.1994.tb13461.x. PMID: 7766968.<\/p>\n

7.\u00a0Fernstrom JD, Fernstrom MH.\u00a0Tyrosine, phenylalanine, and catecholamine synthesis and function in the brain.<\/strong>\u00a0J Nutr. 2007 Jun;137(6 Suppl 1):1539S-1547S; discussion 1548S. doi: 10.1093\/jn\/137.6.1539S. PMID: 17513421.<\/p>\n

8. Riley PA.\u00a0Melanin.<\/strong>\u00a0Int J Biochem Cell Biol. 1997 Nov;29(11):1235-9. doi: 10.1016\/s1357-2725(97)00013-7. PMID: 9451820.<\/p>\n

9.\u00a0Iuvone PM.\u00a0Regulation of retinal dopamine biosynthesis and tyrosine hydroxylase activity by light.<\/strong>\u00a0Fed Proc. 1984 Sep;43(12):2709-13. PMID: 6147273.<\/p>\n

10.\u00a0Elkin RG, Featherston WR, Rogler JC.\u00a0Effects of dietary phenylalanine and tyrosine on circulating thyroid hormone levels and growth in the chick.<\/strong>\u00a0J Nutr. 1980 Jan;110(1):130-8. doi: 10.1093\/jn\/110.1.130. PMID: 7354377.<\/p>\n

11. H.L. Wang, V.H. Harwalkar, H.A. Waisman,\u00a0Effect of dietary phenylalanine and tryptophan on brain serotonin,\u00a0<\/strong>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.<\/p>\n

 <\/p>\n

Reference: LifeBlud<\/p>\n","protected":false},"excerpt":{"rendered":"

High Purity L-Tyrosine & L-Phenylalanine
\n<\/strong>Pure, lab-tested L-Tyrosine & L-Phenylalanine\u00a0(99+% purity)\u00a0in a bovine gelatin capsule. Nothing else.<\/p>\n","protected":false},"featured_media":430,"comment_status":"open","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[],"product_cat":[343,333,199],"product_tag":[],"class_list":{"0":"post-410","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-products","7":"product_cat-holistic-health-wellbeing","8":"product_cat-vitamins-supplements","10":"first","11":"instock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"supplier_id":893,"supplier_sku":"","barcode":null,"atum_controlled":true,"out_stock_date":null,"out_stock_threshold":null,"inheritable":false,"inbound_stock":1,"stock_on_hold":0,"sold_today":0,"sales_last_days":0,"reserved_stock":0,"customer_returns":0,"warehouse_damage":0,"lost_in_post":0,"other_logs":0,"out_stock_days":0,"lost_sales":0,"has_location":false,"update_date":"2026-04-20T04:15:15","atum_locations":[],"atum_stock_status":"instock","restock_status":false,"low_stock_amount":"","sales_update_date":"2026-04-20T04:15:15","calc_backorders":0,"jetpack_publicize_connections":[],"jetpack-related-posts":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/product\/410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/comments?post=410"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/media\/430"}],"wp:attachment":[{"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/media?parent=410"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=410"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=410"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/alther-native.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}