Frequently Asked Questions

Our Products & Formulations

Q: Who formulates Z Neurosciences supplements?

A: Our formulas are developed by Dr. Zoltan Mari, a board-certified neurologist and movement disorders specialist, in collaboration with our co-founder, Lynda Mari, a mental health clinician and certified nutritional supplements specialist. Every ingredient is selected based on clinical experience and published research.

Q: What is ZoLi™ and what is it designed to do?

A: ZoLi™ is our flagship cognitive and mood support formula, developed by our neurologist co-founder. Each serving combines citicoline (300mg), acetyl-L-carnitine (250mg), Lion's Mane mushroom extract (250mg), Bacopa monnieri (150mg), and phosphatidylserine (100mg) — ingredients studied for their roles in supporting focus, memory, and mental clarity — alongside activated B vitamins (methylcobalamin B12, L-methylfolate, and P5P B6) and chelated lithium orotate to support balanced mood and a healthy stress response.*

Q: How do I take ZoLi™?

A: Two capsules daily with food. Each bottle contains a 30-day supply. Some ingredients, like Bacopa, are best evaluated after 6–8 weeks of consistent use.

Q: Is the lithium in ZoLi™ the same as prescription lithium?

A: No — and this is a question we welcome. ZoLi™ contains 10mg of lithium orotate, a chelated, low-dose form of lithium, a naturally occurring trace mineral found in drinking water and foods like grains and vegetables in small amounts. Prescription lithium (lithium carbonate) is a different compound, dosed at hundreds of milligrams under medical supervision, with blood-level monitoring. The trace amount in ZoLi™ is included as part of our mood support blend* and is not a medication, not a substitute for one, and not intended to treat any condition. If you currently take lithium or any psychiatric medication, talk with your prescriber before adding ZoLi™ or any supplement.

Q: Why is the vitamin B12 dose so high (20,833% Daily Value)?

A: That percentage looks dramatic, but context helps. The Daily Value for B12 is very small (2.4mcg), so even modest supplemental doses produce large percentages. We include 500mcg of methylcobalamin — the active, pre-methylated form — because B12 absorption is inherently inefficient: your body absorbs a small fraction of any oral dose, and absorption declines with age and with common medications like acid reducers and metformin. B12 is water-soluble, and your body excretes what it doesn't use. Doses in this range are widely used in supplements for exactly these reasons. That said, if you have a medical condition or take medications, check with your healthcare provider — that's our standing advice for any supplement.

Q: Why do you use "activated" B vitamins?

A: We use the methylated, bioactive forms — methylcobalamin, L-methylfolate, and P5P — rather than the cheaper synthetic versions. These are the forms your body actually uses, which matters especially for the many people who don't efficiently convert standard B vitamins.

Q: Are your supplements third-party tested?

A: Yes — our products are manufactured in a cGMP-certified facility in the US, and every batch is tested by an independent lab for purity, potency, and contaminants.

Usage & Safety

Q: How do I take Z Neurosciences supplements, and when will I notice results?

A: Take our nutritional supplements daily, preferably with food. Individual experiences vary — some ingredients support the body over weeks of consistent use rather than producing an immediate effect. We recommend giving any supplement 6 to 8 weeks of consistent use.

Q: Can I take your supplements with my medications?

A: We recommend speaking with your physician or pharmacist before starting any supplement, especially if you take prescription medications, are pregnant or nursing, or have a medical condition.

Q: Are your supplements safe for children?

A: Our products are formulated for adults 18+. Please consult a pediatrician before giving any supplement to a child.

Q: Do your products treat anxiety, depression, ADHD, or memory loss?

A: No. Our supplements are not medications and are not intended to diagnose, treat, cure, or prevent any disease. They're designed to support normal cognitive function and overall brain wellness.* If you're experiencing symptoms of a medical or mental health condition, please seek care from a licensed provider.

Orders & Shipping

Q: Where do you ship, and how long does it take?

A: We currently ship to the US only. Orders ship within 2 business days and typically arrive in 7 to 10 business days.

Q: What is your return policy?

A: If you're not satisfied, contact us within 30 days of delivery for a refund. Reach us at info@zneurosciences.com and we'll make it right.

Q: Do you offer subscriptions?

A: Yes — save 10% with monthly delivery, cancel anytime.

About Z Neurosciences

Q: What makes Z Neurosciences different from other supplement brands?

A: We're founded and led by clinicians — a practicing neurologist and a mental health professional — who formulate based on what they've seen matter in real clinical practice. We focus on brain health because that's what we know.

Q: How can I contact you?

A: Email us at info@zneurosciences.com. We typically respond within 1–2 business days.

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*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.