{"product_id":"l-histidine","title":"L-Histidine HCL","description":"\u003cdiv class=\"flex h-svh w-screen flex-col\"\u003e\n\u003cdiv class=\"relative z-0 flex min-h-0 w-full flex-1\"\u003e\n\u003cdiv class=\"relative flex min-h-0 w-full flex-1\"\u003e\n\u003cdiv class=\"@container\/main relative flex min-w-0 flex-1 flex-col -translate-y-[calc(env(safe-area-inset-bottom,0px)\/2)] pt-[calc(env(safe-area-inset-bottom,0px)\/2)]\"\u003e\n\u003cdiv data-scroll-root=\"\" class=\"@w-sm\/main:[scrollbar-gutter:stable_both-edges] touch:[scrollbar-width:none] relative flex min-h-0 min-w-0 flex-1 flex-col [scrollbar-gutter:stable] not-print:overflow-x-clip not-print:overflow-y-auto scroll-pt-(--header-height) [--sticky-padding-top:var(--header-height)] has-data-[fixed-header=less-than-xl]:@w-xl\/main:scroll-pt-0 has-data-[fixed-header=less-than-xl]:@w-xl\/main:[--sticky-padding-top:0px] has-data-[fixed-header=less-than-xxl]:@w-2xl\/main:scroll-pt-0 has-data-[fixed-header=less-than-xxl]:@w-2xl\/main:[--sticky-padding-top:0px]\"\u003e\u003cmain class=\"min-h-0 flex-1\" id=\"main\"\u003e\n\u003cdiv id=\"thread\" class=\"group\/thread flex flex-col min-h-full\"\u003e\n\u003cdiv role=\"presentation\" class=\"composer-parent flex flex-1 flex-col focus-visible:outline-0\"\u003e\n\u003cdiv class=\"relative basis-auto flex-col -mb-(--composer-overlap-px) [--composer-overlap-px:28px] grow flex\"\u003e\n\u003cdiv class=\"flex flex-col text-sm pb-25\" data-pb-monitored=\"true\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"e097c774-4cd4-4ba2-9630-114ce2042dd9\" data-testid=\"conversation-turn-2\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"2869a1ac-1769-4a64-92f2-fcdac4d95c5a\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"481\"\u003e\u003cstrong data-start=\"0\" data-end=\"19\"\u003eL-Histidine HCl\u003c\/strong\u003e is a highly bioavailable, hydrochloride salt form of the essential amino acid L-histidine. As an essential amino acid, histidine must be obtained through diet or supplementation and plays a critical role in numerous physiological processes, including protein synthesis, immune response, neurotransmitter activity, and tissue repair. The HCl (hydrochloride) form enhances stability and solubility, making it a popular choice in powdered supplements and capsules.\u003c\/p\u003e\n\u003ch3 data-start=\"483\" data-end=\"500\"\u003eDescription\u003c\/h3\u003e\n\u003cp data-start=\"501\" data-end=\"1044\"\u003eL-histidine is a precursor to several biologically important compounds, most notably \u003cstrong data-start=\"586\" data-end=\"599\"\u003ehistamine\u003c\/strong\u003e, a signaling molecule involved in immune function, gastric acid secretion, and neurotransmission. It is also a building block for \u003cstrong data-start=\"730\" data-end=\"744\"\u003ehemoglobin\u003c\/strong\u003e, the oxygen-carrying protein in red blood cells, and contributes to the structure and function of enzymes and proteins throughout the body. Because histidine contains an imidazole side chain, it plays a unique buffering role in maintaining acid–base balance, particularly in muscle tissue and blood.\u003c\/p\u003e\n\u003cp data-start=\"1046\" data-end=\"1325\"\u003eL-Histidine HCl is commonly used in dietary supplements aimed at supporting cognitive health, metabolic function, joint health, and recovery. Its enhanced solubility compared to free-form histidine makes it easier to mix and absorb, especially in liquid or powdered formulations.\u003c\/p\u003e\n\u003ch3 data-start=\"1327\" data-end=\"1341\"\u003eBenefits\u003c\/h3\u003e\n\u003cp data-start=\"1343\" data-end=\"1687\"\u003e\u003cstrong data-start=\"1343\" data-end=\"1384\"\u003e1. Cognitive and Neurological Support\u003c\/strong\u003e\u003cbr data-start=\"1384\" data-end=\"1387\"\u003eHistidine is involved in the production of histamine in the brain, which acts as a neurotransmitter influencing alertness, focus, learning, and memory. Adequate histidine intake may support mental clarity and help maintain healthy cognitive function, particularly during periods of stress or fatigue.\u003c\/p\u003e\n\u003cp data-start=\"1689\" data-end=\"1952\"\u003e\u003cstrong data-start=\"1689\" data-end=\"1718\"\u003e2. Immune System Function\u003c\/strong\u003e\u003cbr data-start=\"1718\" data-end=\"1721\"\u003eThrough its role as a histamine precursor, L-histidine supports immune signaling and inflammatory responses. Balanced histamine production is essential for proper immune defense, wound healing, and regulation of allergic responses.\u003c\/p\u003e\n\u003cp data-start=\"1954\" data-end=\"2220\"\u003e\u003cstrong data-start=\"1954\" data-end=\"1996\"\u003e3. Red Blood Cell and Oxygen Transport\u003c\/strong\u003e\u003cbr data-start=\"1996\" data-end=\"1999\"\u003eHistidine is a key component of hemoglobin structure. Supplementation may support healthy red blood cell formation and efficient oxygen delivery to tissues, which is especially important for physically active individuals.\u003c\/p\u003e\n\u003cp data-start=\"2222\" data-end=\"2530\"\u003e\u003cstrong data-start=\"2222\" data-end=\"2260\"\u003e4. Muscle Performance and Recovery\u003c\/strong\u003e\u003cbr data-start=\"2260\" data-end=\"2263\"\u003eL-histidine contributes to the formation of \u003cstrong data-start=\"2307\" data-end=\"2320\"\u003ecarnosine\u003c\/strong\u003e, a dipeptide stored in skeletal muscle that helps buffer lactic acid. Higher carnosine levels are associated with improved muscular endurance, reduced fatigue, and enhanced recovery following intense exercise.\u003c\/p\u003e\n\u003cp data-start=\"2532\" data-end=\"2806\"\u003e\u003cstrong data-start=\"2532\" data-end=\"2562\"\u003e5. Joint and Tissue Health\u003c\/strong\u003e\u003cbr data-start=\"2562\" data-end=\"2565\"\u003eHistidine participates in tissue growth and repair, supporting the maintenance of cartilage, skin, and connective tissue. It has also been studied for its potential role in supporting joint comfort by helping regulate inflammatory processes.\u003c\/p\u003e\n\u003cp data-start=\"2808\" data-end=\"3086\"\u003e\u003cstrong data-start=\"2808\" data-end=\"2846\"\u003e6. Digestive and Metabolic Support\u003c\/strong\u003e\u003cbr data-start=\"2846\" data-end=\"2849\"\u003eHistamine derived from histidine stimulates gastric acid secretion, which aids protein digestion and nutrient absorption. Adequate histidine levels may therefore contribute indirectly to digestive efficiency and overall metabolic health.\u003c\/p\u003e\n\u003ch3 data-start=\"3088\" data-end=\"3108\"\u003eDosage and Use\u003c\/h3\u003e\n\u003cp data-start=\"3110\" data-end=\"3351\"\u003eA typical supplemental dosage of \u003cstrong data-start=\"3143\" data-end=\"3162\"\u003eL-Histidine HCl\u003c\/strong\u003e ranges from \u003cstrong data-start=\"3175\" data-end=\"3205\"\u003e500 mg to 2,000 mg per day\u003c\/strong\u003e, depending on individual needs and health goals. Beginners often start at the lower end (500–1,000 mg daily) and gradually increase as tolerated.\u003c\/p\u003e\n\u003cul data-start=\"3353\" data-end=\"3727\"\u003e\n\u003cli data-start=\"3353\" data-end=\"3506\"\u003e\n\u003cp data-start=\"3355\" data-end=\"3506\"\u003e\u003cstrong data-start=\"3355\" data-end=\"3366\"\u003eTiming:\u003c\/strong\u003e Can be taken with or without food. Some users prefer taking it earlier in the day due to its role in alertness-related neurotransmitters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3507\" data-end=\"3622\"\u003e\n\u003cp data-start=\"3509\" data-end=\"3622\"\u003e\u003cstrong data-start=\"3509\" data-end=\"3526\"\u003eAthletic use:\u003c\/strong\u003e Often combined with other amino acids or taken pre-workout to support endurance and recovery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3623\" data-end=\"3727\"\u003e\n\u003cp data-start=\"3625\" data-end=\"3727\"\u003e\u003cstrong data-start=\"3625\" data-end=\"3638\"\u003eStacking:\u003c\/strong\u003e Frequently paired with beta-alanine, B-complex vitamins, or other essential amino acids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3729\" data-end=\"4045\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eAs with any supplement, individuals with medical conditions or those taking medications should consult a healthcare professional before use. When used responsibly, L-Histidine HCl is a versatile amino acid supplement that supports brain function, immune health, muscle performance, and overall physiological balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Jarvis Nutrition","offers":[{"title":"$139.00","offer_id":44046497284179,"sku":null,"price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/8355\/5155\/files\/Yographtext-2026-02-09T122127.062.png?v=1770668495","url":"https:\/\/jarvisnutrition.com\/products\/l-histidine","provider":"Jarvis Nutrition","version":"1.0","type":"link"}