{"product_id":"l-arginine-sr-350mg-60-tablets-endurance-products","title":"L-Arginine SR 350mg 60 Tablets by Endurance Products","description":"\u003cp\u003e\u003cstrong\u003eL-Arginine SR 350mg 60 Tablets by Endurance Products\u003c\/strong\u003e delivers 350mg of L-arginine per tablet as arginine alpha-ketoglutarate in a SmartMatrix sustained-release format designed to release this conditionally essential amino acid gradually over 4 to 6 hours, supporting cardiovascular function, nitric oxide synthesis, and healthy blood flow.\u003c\/p\u003e\n\n\u003ch2\u003eKey Benefits of L-Arginine SR 350mg by Endurance Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCardiovascular Function Support:\u003c\/strong\u003e L-arginine is the primary substrate for endothelial nitric oxide synthase (eNOS), the enzyme responsible for producing nitric oxide in blood vessel walls, which supports healthy vasodilation and promotes normal cardiovascular function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitric Oxide Synthesis Support:\u003c\/strong\u003e Promotes the body's natural production of nitric oxide, a signaling molecule that supports vascular tone, blood flow, and endothelial integrity throughout the circulatory system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArginine Alpha-Ketoglutarate Form:\u003c\/strong\u003e Delivers L-arginine as arginine alpha-ketoglutarate (AAKG), a salt form that may support enhanced absorption and utilization compared to standard L-arginine HCl.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartMatrix Sustained-Release Technology:\u003c\/strong\u003e Endurance Products Company's proprietary wax-matrix tablet releases L-arginine gradually over 4 to 6 hours, supporting more consistent plasma arginine levels and reducing the gastrointestinal discomfort sometimes associated with large single-dose arginine supplementation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExercise Performance and Recovery Support:\u003c\/strong\u003e Promotes healthy blood flow to working muscles during physical activity and supports post-exercise recovery through nitric oxide-mediated vascular mechanisms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmune Function Support:\u003c\/strong\u003e L-arginine is involved in immune cell proliferation and function, supporting the body's natural immune defense mechanisms at the cellular level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServing Flexibility:\u003c\/strong\u003e Each serving of 3 tablets provides 1050mg of L-arginine as AAKG, with dosing frequency adjustable under healthcare professional guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy This Formula Matters\u003c\/h2\u003e\n\u003cp\u003eL-arginine is a conditionally essential amino acid that serves as the sole substrate for endogenous nitric oxide production via the nitric oxide synthase pathway, making adequate arginine availability central to healthy vascular tone, endothelial function, and cardiovascular support. Standard immediate-release L-arginine supplements are absorbed rapidly but may result in transient plasma peaks followed by rapid hepatic clearance, limiting the duration of elevated arginine availability for nitric oxide synthesis. Endurance Products Company's SmartMatrix sustained-release technology addresses this by extending L-arginine release over 4 to 6 hours, supporting more consistent plasma arginine levels and promoting sustained nitric oxide production throughout the day without the gastrointestinal side effects commonly reported with high single-dose arginine supplementation.\u003c\/p\u003e\n\n\u003ch2\u003eDietary and Quality Standards\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e350mg L-arginine (as arginine alpha-ketoglutarate) per sustained-release tablet\u003c\/li\u003e\n\u003cli\u003e1050mg L-arginine per 3-tablet serving\u003c\/li\u003e\n\u003cli\u003eSmartMatrix proprietary wax-matrix sustained-release technology\u003c\/li\u003e\n\u003cli\u003eReleases L-arginine gradually over 4 to 6 hours\u003c\/li\u003e\n\u003cli\u003eGluten-Free\u003c\/li\u003e\n\u003cli\u003eFree from milk, egg, fish, shellfish, soy, peanuts, tree nuts, and wheat\u003c\/li\u003e\n\u003cli\u003eNo salt, sugar, starch, preservatives, artificial colors, or flavorings\u003c\/li\u003e\n\u003cli\u003e60 tablets per bottle\u003c\/li\u003e\n\u003cli\u003eManufactured by Endurance Products Company, a US-based sustained-release tablet specialist\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is L-arginine and why is it important for cardiovascular function?\u003c\/h3\u003e\n\u003cp\u003eL-arginine is a conditionally essential amino acid that serves as the primary substrate for nitric oxide synthase, the enzyme that produces nitric oxide in the endothelial cells lining blood vessels. Nitric oxide is a critical signaling molecule that supports healthy vasodilation, promotes normal blood flow, and maintains vascular tone throughout the circulatory system. Adequate L-arginine availability supports the body's capacity to produce nitric oxide and maintain healthy cardiovascular function.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is arginine alpha-ketoglutarate and how does it differ from standard L-arginine?\u003c\/h3\u003e\n\u003cp\u003eArginine alpha-ketoglutarate (AAKG) is a salt form of L-arginine in which the amino acid is bound to alpha-ketoglutarate, a Krebs cycle intermediate. This form may support enhanced absorption and utilization compared to standard L-arginine HCl, and is commonly used in research and clinical supplement protocols for cardiovascular and exercise performance support.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I take L-Arginine SR 350mg?\u003c\/h3\u003e\n\u003cp\u003eFor adults, take three tablets twice daily, preferably with meals, or as directed by a qualified healthcare professional. Each 3-tablet serving provides 1050mg of L-arginine as arginine alpha-ketoglutarate. Do not crush or chew the sustained-release tablets, as this will disrupt the SmartMatrix delivery mechanism.\u003c\/p\u003e\n\n\u003ch3\u003eWhy is a sustained-release format beneficial for L-arginine supplementation?\u003c\/h3\u003e\n\u003cp\u003eStandard immediate-release L-arginine is absorbed rapidly, which can result in transient plasma peaks followed by rapid hepatic clearance, limiting the duration of elevated arginine availability for nitric oxide synthesis. The SmartMatrix sustained-release format extends L-arginine release over 4 to 6 hours, supporting more consistent plasma arginine levels throughout the day and reducing the gastrointestinal discomfort sometimes associated with large single-dose arginine supplementation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat are the other ingredients in L-Arginine SR 350mg?\u003c\/h3\u003e\n\u003cp\u003eOther ingredients include calcium phosphate, vegetable wax (rice bran and\/or carnauba wax), stearic acid (vegetable), magnesium stearate (vegetable), and silica. The formula does not contain milk, egg, fish, shellfish, soy, peanuts, tree nuts, wheat, salt, sugar, starch, preservatives, artificial colors, or flavorings.\u003c\/p\u003e\n\n\u003ch3\u003eWho should consult a healthcare professional before use?\u003c\/h3\u003e\n\u003cp\u003eIndividuals with a known medical condition, those taking prescription medications including medications that affect blood pressure or cardiovascular function, and pregnant or nursing women should consult a qualified healthcare professional prior to use. Keep out of reach of children.\u003c\/p\u003e","brand":"Endurance Products","offers":[{"title":"Default Title","offer_id":53941004337336,"sku":"EP1005","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0217\/3199\/9816\/files\/L-Arginine_SR_350mg_60_Tablets_by_Endurance_Products.webp?v=1787077004","url":"https:\/\/blueskyvitamin.com\/products\/l-arginine-sr-350mg-60-tablets-endurance-products","provider":"Blue Sky Vitamin","version":"1.0","type":"link"}