Frequently Asked Questions

First, brain aging doesn't happen through one mechanism. It involves neuroplasticity, cellular resilience, neuronal growth and repair, signaling between neurons, and keeping neuroinflammation in check. Most brain supplements pick one of those angles, usually whichever ingredient is trending, and build the entire product around it. Mentaid was built by physicians who treat this clinically, and it covers all of them.

Second, the evidence bar. Mentaid's six ingredients were selected based on randomized controlled trials, the highest tier of clinical evidence. Much of what the supplement industry cites is observational research or studies run without a placebo group, which is the classic "correlation does not equal causation."

Mentaid is for adults who take their physical health seriously and want to extend that same care to their brain. You don't have to be experiencing symptoms to benefit. The brain responds well to early, consistent support.

Mentaid contains lithium orotate, Lion's Mane, magnesium glycinate, Vitamin B12, Folate (Vitamin B9), and Vitamin B6.

Every dose is printed on the label. There are no proprietary blends.

Take 2 capsules each morning or night, whichever you'll stay consistent with.

Do not exceed the recommended serving size unless instructed by a qualified healthcare professional.

Mentaid is closer to a brain multivitamin than a performance enhancer.

Think about it the way you think about a statin, sunscreen, or a daily multivitamin. A statin doesn't produce a sensation. What it's doing to your arteries happens quietly, and you never feel any of it. Sunscreen is the same. So is a multivitamin. Nobody takes one and then judges it based on how they feel that afternoon.

Some people do notice something in the first several weeks, often that thoughts feel a little clearer, that names and details come back faster, or that they're sleeping better. Others won't notice a shift, and that's exactly what you'd expect from something working quietly in the background. Either way, it's doing the same thing: precision brain aging support.

None. Every capsule contains only the active ingredients listed on the label, plus the capsule itself.

Many of the tolerability issues people experience with supplements come from fillers and additives rather than the ingredients themselves. That's why we kept it clean: just what's on the label and nothing more.

Yes. Mentaid is free from all 9 major allergens recognized by the FDA. Our formula contains no:

• Milk
• Eggs
• Fish
• Shellfish
• Tree nuts
• Peanuts
• Wheat
• Soy
• Sesame

Our capsules are made from methylcellulose, a plant-based cellulose, and we use no fillers, binders, or excipients of any kind.

Yes. The CDC states that people with an MTHFR gene variant can process all types of folate, including folic acid, and directly addresses the common belief that folic acid should be avoided.

This is also supported by the American College of Obstetricians and Gynecologists and the American College of Medical Genetics and Genomics.

The best clinical studies evaluating B vitamins for cognitive support have used non-methylated forms, with success.

If you have a diagnosed metabolic disorder or specific medical concerns, consult your healthcare professional.

Every ingredient in Mentaid was selected based on the strength and quality of available human clinical research. While many ingredients show promise in preclinical or animal studies, human outcomes do not always mirror early findings.

We prioritize well-designed human trials, safety and tolerability data, and how each ingredient functions within a cohesive formulation.

We continuously review emerging research and will refine the formula if and when new, high-quality human evidence supports it.

The lithium you're thinking of is lithium carbonate, the prescription medication used to treat bipolar disorder at doses that require regular blood monitoring.

Mentaid does not contain that. Mentaid contains lithium orotate, a supplemental form sold over the counter for decades, at roughly one one-thousandth of a prescription dose.

Peer-reviewed sources report no deaths and no serious adverse events across more than 40 years of lithium orotate use in the US and Europe, and no documented adverse effects anywhere in the supplemental dose range. For scale, lithium toxicity is generally associated with an intake more than 2,600 times the amount in a daily serving of Mentaid.

Sources: peer-reviewed toxicology review, lithium orotate monograph.

For more information, see our Guide to Lithium Orotate.

Supplement labels make this confusing.

Our formula contains 5 mg of lithium orotate, which provides approximately 200 micrograms of elemental lithium.

To put that in context, someone drinking from a high-lithium water source can take in a comparable amount of elemental lithium over the course of a day without ever knowing it.

This is also lower than most other lithium orotate supplements on the market, which most commonly contain ~120 mg of lithium orotate, providing 5 mg of elemental lithium.

For more information, see our Guide to Lithium Orotate.

We can't speak for every other product, but lithium is often left out because people are sometimes hesitant about it due to the stigma of prescription lithium.

If a product claims to support brain health but leaves out lithium, despite the research on its role in brain health, it's worth asking whether they're actually focused on brain health.

Most people take Mentaid alongside their regular medications. As physicians, we see patients on long medication lists every day, and we built Mentaid with exactly those patients in mind.

Every ingredient and dose is printed on the label, with no proprietary blends. As always, with any specific questions about your health, talk to your doctor.

This supplement was not designed for use during pregnancy, and there is limited evidence to support routine use of its full ingredient combination in pregnant individuals.

Because nutritional needs and safety considerations change during pregnancy, and because some ingredients may not be appropriate in that context, we recommend not using this product while pregnant unless specifically advised by a qualified healthcare professional who is familiar with your individual health history.

This product was not formulated for use during breastfeeding.

Although some individual ingredients may be commonly found in the diet or in other supplements, the safety of this specific formulation during lactation has not been established. Out of caution, we recommend avoiding use while breastfeeding unless discussed with and approved by a healthcare professional.

Dietary supplements are not approved by the FDA. Mentaid is manufactured in an FDA-registered and inspected facility that follows 21 CFR Part 111 regulations and adheres to current Good Manufacturing Practices (cGMPs).

Yes. Mentaid is thoroughly tested at multiple stages of manufacturing. Every batch is tested for both purity and contaminants, and comes with a Certificate of Analysis.

Yes. Mentaid is manufactured in the state of Georgia in the United States.

Mentaid is $49 per bottle, with free shipping on every order.

Every subscription saves you money off that price, and the longer plans save the most. The multi-month plans arrive in a single box rather than shipping monthly.

Current pricing and any active discounts are shown on the product page.

The work Mentaid is doing happens behind the scenes, every day, whether you feel it or not. Your brain is aging on that same schedule, so your support for it should be just as steady.

A subscription removes the decision. You save on every order, your price stays locked in for as long as you're subscribed, and you never hit a three-week gap because a bottle ran out on a busy month. The longer plans save more and arrive in a single box.

Yes, and you can do it however you like. Cancel or pause anytime from your account portal, or just email or call us and we'll handle it. No fees, no hoops, no retention script. We email you before each shipment so a charge never catches you off guard, and your pricing stays locked in for as long as you stay subscribed.

It's worth being precise about what "working" means here. Like a statin, sunscreen, or a multivitamin, Mentaid isn't built to produce a feeling you can check for. The work is happening quietly, and not noticing anything is the expected experience rather than evidence that nothing is happening.

That said, you should be able to try it without risk. Mentaid comes with a 90-day guarantee on your first bottle. If it isn't right for you for any reason, request a refund within 90 days of your first order and we'll refund the price of one bottle, minus a $10 processing and handling fee. There's nothing to ship back.

If you started on a 3-month or 6-month plan, the guarantee covers one bottle and you keep the rest. Refunds are limited to one per customer and apply only to your first order.

To start a request, email support@mentaidhealth.com with your order number, or reach us through our contact page. Once approved, refunds are applied to your original payment method within 5 to 10 business days. See our full refund policy for details.

Shipping is free on every order, one-time and subscription alike. There are no added fees at checkout.

Orders are typically processed by the next business day. Orders placed on Fridays or over the weekend will be processed on Monday. Delivery usually takes 2 to 5 business days, but may take up to 7 business days depending on order timing and destination.

All shipping timelines are estimates. We are not responsible for delays caused by carriers or external events.

We currently ship within the United States, including all 50 states, Washington, D.C., and U.S. territories. That includes Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, and the Northern Mariana Islands, which are processed the same as other U.S. orders.

We do not currently ship outside the United States.

Reach out to us here and we'll get back to you.