{"product_id":"quicksilver-liposomal-magtein-450ml","title":"Liposomal Magtein® – 15.2 fl oz (450 mL)","description":"\u003ch1 class=\"product-hero-headline\"\u003eBrain-targeted magnesium—Magtein® L-threonate with phosphatidylcholine\u003c\/h1\u003e\n\n\u003cp class=\"product-hero-lead\"\u003eMost magnesium never meaningfully reaches the brain. \u003cstrong\u003eLiposomal Magtein®\u003c\/strong\u003e combines patented \u003cstrong\u003emagnesium L-threonate (Magtein®)\u003c\/strong\u003e with \u003cstrong\u003e450 mg phosphatidylcholine\u003c\/strong\u003e per 15 mL serving—delivered in Quicksilver liposomes for practitioners who want cognition, calm, and sleep support beyond basic magnesium salts.*\u003c\/p\u003e\n\n\u003cp\u003eSmarter magnesium for memory, focus, stress resilience, and sleep quality in one large 450 mL practitioner bottle (30 servings).\u003c\/p\u003e\n\n\u003chr class=\"hl-product-section-rule\" aria-hidden=\"true\" style=\"border:0;border-top:1px solid #d4d4d4;margin:2.25rem 0;\"\u003e\n\n\u003ch2\u003eWhy Magtein® liposomal magnesium?\u003c\/h2\u003e\n\n\u003cul class=\"benefit-scannable\"\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eCrosses the blood-brain barrier\u003c\/strong\u003e — Magtein® L-threonate is studied for brain delivery unlike many oxide or citrate forms.*\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eMemory, focus \u0026amp; learning\u003c\/strong\u003e — Supports neuroplasticity and cognitive performance goals.*\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eCalm \u0026amp; deep sleep\u003c\/strong\u003e — Daytime and evening dosing patterns modulate neurotransmitters for balance.*\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003ePhospholipid co-factor\u003c\/strong\u003e — 450 mg PC per serving supports neuronal membranes and neurotransmission.*\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cstrong\u003eLiposomal uptake\u003c\/strong\u003e — Small-particle delivery improves absorption versus plain powders or tablets.*\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\n\u003chr class=\"hl-product-section-rule\" aria-hidden=\"true\" style=\"border:0;border-top:1px solid #d4d4d4;margin:2.25rem 0;\"\u003e\n\n\u003ch2\u003eWho is this for\u003c\/h2\u003e\n\n\u003cp\u003eAdults seeking brain-centric magnesium in a liquid liposomal format:*\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003ePatients with sleep onset or quality issues who want evening Magtein dosing.*\u003c\/li\u003e\n\n\u003cli\u003eAnyone who did not respond to citrate, glycinate, or oxide magnesium for brain goals.*\u003c\/li\u003e\n\n\u003cli\u003eStacks that already use \u003ca href=\"https:\/\/shop.healthandlight.com\/products\/quicksilver-liposomal-glutathione-50ml\"\u003eliposomal glutathione\u003c\/a\u003e or \u003ca href=\"https:\/\/shop.healthandlight.com\/products\/quicksilver-nad-gold-50ml\"\u003eNAD+ Gold®\u003c\/a\u003e and want timed-apart magnesium.*\u003c\/li\u003e\n\n\u003cli\u003ePractitioners who prefer 5 mL daytime + 10 mL pre-sleep split dosing from one bottle.*\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\n\u003chr class=\"hl-product-section-rule\" aria-hidden=\"true\" style=\"border:0;border-top:1px solid #d4d4d4;margin:2.25rem 0;\"\u003e\n\n\u003ch2\u003eThe Quicksilver Advantage\u003c\/h2\u003e\n\n\u003cp\u003eMagtein® is protected under U.S. patents and distributed exclusively via licensed supply. Quicksilver pairs it with high-purity phosphatidylcholine in liposomes sized for mucosal uptake—a combination aimed at brain performance and mental well-being, not generic magnesium repletion alone.*\u003c\/p\u003e\n\n\u003cp\u003eLike other magnesium products, temporary sleepiness or headache may occur—often signaling low magnesium status. Reduce dose or consult your clinician if symptoms persist beyond one week.\u003c\/p\u003e\n\n\n\n\u003chr class=\"hl-product-section-rule\" aria-hidden=\"true\" style=\"border:0;border-top:1px solid #d4d4d4;margin:2.25rem 0;\"\u003e\n\n\u003ch2\u003eIngredients \u0026amp; supplement facts\u003c\/h2\u003e\n\n\u003cp\u003eEach serving is \u003cstrong\u003e15 mL\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ctable class=\"supplement-facts-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eAmount per serving\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnesium (elemental, from 1,000 mg Magtein® L-threonate)\u003c\/td\u003e\n\u003ctd\u003e72 mg (17% DV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhosphatidylcholine (from highly purified phospholipids)\u003c\/td\u003e\n\u003ctd\u003e450 mg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eNet wt 15.2 fl oz (450 mL) · 30 servings per bottle (15 mL per serving; split 5 mL + 10 mL as directed)\u003c\/p\u003e\n\n\u003cp\u003eOther ingredients: water, glycerin, ethanol, acacia gum, natural citrus oils, citric acid.\u003c\/p\u003e\n\n\n\n\u003chr class=\"hl-product-section-rule\" aria-hidden=\"true\" style=\"border:0;border-top:1px solid #d4d4d4;margin:2.25rem 0;\"\u003e\n\n\u003ch2\u003eSuggested use\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eTypical pattern: 5 mL during the day and 10 mL about one hour before sleep.*\u003c\/li\u003e\n\n\u003cli\u003eHold sublingually 30–90 seconds, then swallow.*\u003c\/li\u003e\n\n\u003cli\u003eTake daily unless your clinician directs a different schedule.*\u003c\/li\u003e\n\n\u003cli\u003eConsult your practitioner if pregnant, breastfeeding, or on prescription medications.*\u003c\/li\u003e\n\n\u003cli\u003eKeep out of reach of children; do not use if safety seal is damaged.*\u003c\/li\u003e\n\n\u003cli\u003eStore at room temperature, away from heat and direct light.*\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\n\u003chr class=\"hl-product-section-rule\" aria-hidden=\"true\" style=\"border:0;border-top:1px solid #d4d4d4;margin:2.25rem 0;\"\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3\u003eHow is Liposomal Magtein® different from magnesium glycinate?\u003c\/h3\u003e\n\n\u003cp\u003eGlycinate supports general magnesium status; Magtein® L-threonate is formulated for brain delivery and cognitive\/sleep goals.\u003c\/p\u003e\n\n\u003ch3\u003eWhy phosphatidylcholine in Liposomal Magtein®?\u003c\/h3\u003e\n\n\u003cp\u003ePC supports neuronal membrane health and pairs with Magtein® in Quicksilver’s liposomal matrix for enhanced uptake.\u003c\/p\u003e\n\n\u003ch3\u003eTravel size available?\u003c\/h3\u003e\n\n\u003cp\u003eQuicksilver also offers 15 mL sachets; this listing is the 450 mL clinic bottle.\u003c\/p\u003e\n\n\u003ch3\u003eWhy split daytime and evening doses?\u003c\/h3\u003e\n\n\u003cp\u003eA smaller midday dose supports calm focus; a larger pre-sleep dose targets night-time magnesium needs without one heavy bolus.\u003c\/p\u003e\n\n\u003ch3\u003eCan I take Magtein® with \u003ca href=\"https:\/\/shop.healthandlight.com\/products\/quicksilver-melatonin-30ml\"\u003emelatonin\u003c\/a\u003e?\u003c\/h3\u003e\n\n\u003cp\u003eMany sleep stacks combine Magtein® and \u003ca href=\"https:\/\/shop.healthandlight.com\/products\/quicksilver-melatonin-30ml\"\u003eliposomal melatonin\u003c\/a\u003e with timed separation. Ask your practitioner before layering multiple evening sedating nutrients.\u003c\/p\u003e\n\n\u003ch3\u003eWill 72 mg elemental magnesium replace my daily magnesium?\u003c\/h3\u003e\n\n\u003cp\u003eLiposomal Magtein® targets brain delivery, not total-body repletion. General magnesium status may still need dietary or additional forms per your clinician.\u003c\/p\u003e\n\n\u003ch3\u003eAny side effects at start?\u003c\/h3\u003e\n\n\u003cp\u003eMild headache or sleepiness can appear when magnesium status is low. Reduce dose or pause and consult your practitioner if symptoms persist beyond a week.\u003c\/p\u003e","brand":"Quicksilver Scientific","offers":[{"title":"Default Title","offer_id":43339259707459,"sku":"Q-1243","price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1215\/9490\/files\/Magtein450mLBottleWeb.png?v=1780525418","url":"https:\/\/shop.healthandlight.com\/es\/products\/quicksilver-liposomal-magtein-450ml","provider":"Health \u0026 Light Institute","version":"1.0","type":"link"}