Brain-targeted magnesium—Magtein^® L-threonate with phosphatidylcholine

Most magnesium never meaningfully reaches the brain. Liposomal Magtein^® combines patented magnesium L-threonate (Magtein^®) with 450 mg phosphatidylcholine per 15 mL serving—delivered in Quicksilver liposomes for practitioners who want cognition, calm, and sleep support beyond basic magnesium salts.*

Smarter magnesium for memory, focus, stress resilience, and sleep quality in one large 450 mL practitioner bottle (30 servings).

Why Magtein^® liposomal magnesium?

• Crosses the blood-brain barrier — Magtein^® L-threonate is studied for brain delivery unlike many oxide or citrate forms.*
• Memory, focus & learning — Supports neuroplasticity and cognitive performance goals.*
• Calm & deep sleep — Daytime and evening dosing patterns modulate neurotransmitters for balance.*
• Phospholipid co-factor — 450 mg PC per serving supports neuronal membranes and neurotransmission.*
• Liposomal uptake — Small-particle delivery improves absorption versus plain powders or tablets.*

Who is this for

Adults seeking brain-centric magnesium in a liquid liposomal format:*

• Patients with sleep onset or quality issues who want evening Magtein dosing.*
• Anyone who did not respond to citrate, glycinate, or oxide magnesium for brain goals.*
• Stacks that already use liposomal glutathione or NAD+ Gold^® and want timed-apart magnesium.*
• Practitioners who prefer 5 mL daytime + 10 mL pre-sleep split dosing from one bottle.*

The Quicksilver Advantage

Magtein^® 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.*

Like 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.

Ingredients & supplement facts

Each serving is 15 mL.

Net wt 15.2 fl oz (450 mL) · 30 servings per bottle (15 mL per serving; split 5 mL + 10 mL as directed)

Other ingredients: water, glycerin, ethanol, acacia gum, natural citrus oils, citric acid.

Suggested use

• Typical pattern: 5 mL during the day and 10 mL about one hour before sleep.*
• Hold sublingually 30–90 seconds, then swallow.*
• Take daily unless your clinician directs a different schedule.*
• Consult your practitioner if pregnant, breastfeeding, or on prescription medications.*
• Keep out of reach of children; do not use if safety seal is damaged.*
• Store at room temperature, away from heat and direct light.*

FAQ

How is Liposomal Magtein^® different from magnesium glycinate?

Glycinate supports general magnesium status; Magtein^® L-threonate is formulated for brain delivery and cognitive/sleep goals.

Why phosphatidylcholine in Liposomal Magtein^®?

PC supports neuronal membrane health and pairs with Magtein^® in Quicksilver’s liposomal matrix for enhanced uptake.

Travel size available?

Quicksilver also offers 15 mL sachets; this listing is the 450 mL clinic bottle.

Why split daytime and evening doses?

A smaller midday dose supports calm focus; a larger pre-sleep dose targets night-time magnesium needs without one heavy bolus.

Can I take Magtein^® with melatonin?

Many sleep stacks combine Magtein^® and liposomal melatonin with timed separation. Ask your practitioner before layering multiple evening sedating nutrients.

Will 72 mg elemental magnesium replace my daily magnesium?

Liposomal Magtein^® targets brain delivery, not total-body repletion. General magnesium status may still need dietary or additional forms per your clinician.

Any side effects at start?

Mild headache or sleepiness can appear when magnesium status is low. Reduce dose or pause and consult your practitioner if symptoms persist beyond a week.