Solaray Methyl B-12 Plus Methyl Folate (60 Sublingual Lozenges)
Looking for clean, sustained physical energy, sharper mental focus, and cardiovascular wellness? Solaray Methyl B-12 Plus Methyl Folate delivers high-potency, pre-activated B vitamins directly to your bloodstream in delicious, natural cherry-flavored lozenges. Designed to bypass digestive bottlenecks and genetic roadblocks like the MTHFR gene variant, this two-in-one powerhouse gives your body the exact tools it needs to thrive.
✓ 2,000 mcg Active Methylcobalamin (B-12)
✓ 800 mcg Bioactive Quatrefolic® (5-MTHF)
✓ Fast-Dissolving Sublingual Delivery
✓ Lab-Verified Purity & Potency Guarantee
What Is "Methylation" and Why Do Active B Vitamins Matter?
To understand why Solaray Methyl B-12 Plus Methyl Folate is so popular, it helps to know how your body uses B vitamins. Inside trillions of your cells, a biological process called methylation happens billions of times every second. Think of methylation as your body's master biochemical switchboard. It attaches tiny chemical tags called "methyl groups" to turn key genes on or off, clear out metabolic waste, synthesize vital neurotransmitters like serotonin and dopamine, and repair DNA.
However, standard over-the-counter supplements often use cheap, synthetic forms: cyanocobalamin for vitamin B12 and folic acid for vitamin B9. These artificial forms cannot be used right away. Your liver and digestive tract have to spend energy breaking them down through multiple chemical steps to make them active.
The Everyday Metaphor: Raw Timber vs. Finished Furniture
Taking synthetic folic acid and cyanocobalamin is like having raw lumber dumped on your front lawn when you just need a kitchen table. Your body has to spend time, tools, and labor cutting, planing, and assembling it into a usable form. Methyl B-12 Plus Methyl Folate provides the fully assembled furniture—fully active coenzyme nutrients that your cells put to work immediately.
The MTHFR Gene Connection
Up to 40% to 50% of the population carries a common genetic variation in the MTHFR (methylenetetrahydrofolate reductase) gene, such as the C677T or A1298C variants. If you have this variation, your ability to convert synthetic folic acid into bioactive folate can drop by 30% to 70%. Ingesting large amounts of synthetic folic acid can lead to unconverted folic acid floating in the bloodstream while your cells remain starved for usable folate. By providing (6S)-5-Methyltetrahydrofolate (5-MTHF), this supplement bypasses that genetic detour entirely.
Targeted Health Benefits: How This Duo Works for You
Vitamin B12 and folate are biological partners. One cannot perform its essential duties without the other. Here is what happens when you supply your body with peak levels of both:
1. Natural Cellular Energy (No Crash)
B12 and folate are fundamental components in the synthesis of red blood cells, which carry fresh oxygen to your brain and working muscles. Together, they assist your cellular powerhouses (mitochondria) in converting fats and carbohydrates into pure adenosine triphosphate (ATP) energy without the jittery adrenaline spikes or sudden crashes linked to caffeine.
2. Brain Fog Relief & Mood Support
Active methylcobalamin supports the myelin sheath, the protective insulating jacket surrounding your nerves and brain neurons. Concurrently, methylfolate is essential for producing SAMe (S-adenosylmethionine), the direct precursor for serotonin, dopamine, and norepinephrine—neurotransmitters responsible for calm focus, emotional resilience, and clear cognitive thinking.
3. Cardiovascular & Homocysteine Defense
Homocysteine is an amino acid byproduct of normal protein metabolism. When homocysteine levels build up in the blood, it can irritate delicate arterial linings. Methyl B-12 and 5-MTHF work as a biochemical recycling team, converting homocysteine safely back into beneficial methionine to protect heart and vascular health.
4. Direct Sublingual Absorption
Traditional B12 swallowed as a pill faces strong stomach acids and requires a stomach protein called "intrinsic factor" to be absorbed in the small intestine. By dissolving this lozenge under your tongue, nutrients absorb through the mucous membranes right into your bloodstream—ideal for older adults, vegetarians, and anyone with digestive sensitivity.
The Quatrefolic® Advantage: 4th Generation Folate Science
Not all folate supplements are created equal. Solaray formulates this lozenge with patented Quatrefolic®, widely recognized by clinical biochemists as the pinnacle of folate supplementation:
1st Generation (Food Folate): Bound in food polyglutamates; delicate, degrades quickly during cooking, and requires intensive digestive breakdown.
2nd Generation (Folic Acid): Synthetically manufactured in the 1940s; requires multiple liver enzymes to convert, frequently leaving unmetabolized folic acid in circulation.
3rd Generation (Calcium Salt 5-MTHF): Active form, but possesses poor aqueous solubility and limited shelf stability.
✓ 4th Generation (Quatrefolic® Glucosamine Salt): The breakthrough form utilized in Solaray Methyl B-12 Plus Methyl Folate. It provides nearly 100 times greater water solubility than older calcium salts, resulting in superior bioavailability and immediate cellular uptake.
Clinical Verification: Pharmacokinetic evaluations show that Quatrefolic® reaches maximum plasma concentrations (Cmax) more than three times higher than synthetic folic acid, delivering an Area Under the Curve (AUC) bioavailability up to 9.7 times greater than ordinary folic acid (Miraglia et al., 2016).
Complete Supplement Facts & Ingredients
Clean label formulation free from unnecessary binders or synthetic dyes.
Supplement Facts
Serving Size: 1 Lozenge
Servings Per Container: 60
Amount Per Serving
% Daily Value
Folate (as Quatrefolic® [6S]-5-Methyltetrahydrofolate, Glucosamine Salt) (470 mcg Folic Acid)
800 mcg DFE (200% DV)
Vitamin B-12 (as Methylcobalamin)
2,000 mcg (83,333% DV)
Detailed Ingredients Listing:
Active Nutrients: Vitamin B-12 (as pure Methylcobalamin), Folate (as Quatrefolic® [6S]-5-Methyltetrahydrofolic acid, glucosamine salt).
Natural Functional Base: Organic Inulin (prebiotic chicory fiber base that provides texture and gentle gut support).
Processing Aids & Taste Optimizers: Citric acid, Malic acid (natural fruit acids for a refreshing tart cherry taste), Silica (naturally occurring mineral flow agent).
Allergen & Quality Notes: Formulated without artificial colors, synthetic flavors, gluten, soy, dairy, or harsh chemical binders. 100% Vegetarian.
How to Take for Maximum Results
Getting the full physiological benefit from sublingual lozenges comes down to proper technique. Follow these simple steps:
1Placement: Place one (1) lozenge under your tongue or between your cheek and gum.
2Dissolve Slowly: Allow the lozenge to dissolve completely without biting or chewing. This ensures the nutrients pass directly through the microscopic capillaries lining your mouth.
3Best Time of Day: Take in the morning or early afternoon with or without a meal. Because active B12 supports natural cellular ATP energy, taking it late in the evening may interfere with winding down for sleep.
Safety, Medical Precautions & Quality Standards
As part of our commitment to transparent medical and nutritional standards, we recommend reviewing these important safety considerations before starting any new dietary supplement:
Starting Sensitivity: Some individuals sensitive to methyl donors may experience temporary mild excitement, vivid dreams, or transient nervousness. If this occurs, try taking half a lozenge or taking it every other day until your system adapts.
Medication Interactions: Medications such as metformin, proton pump inhibitors (omeprazole, esomeprazole), and H2-blockers can severely deplete vitamin B12 stores over time. Methotrexate and certain anti-seizure medications interfere with folate pathways. Always consult your prescribing physician or pharmacist before combining supplements with medications.
Pregnancy & Nursing: Supplemental folate is essential during pregnancy to protect fetal neurological development. If you are pregnant, nursing, or planning a pregnancy, consult your OB/GYN to determine your ideal daily dosage.
Solaray Lab Verification: Every batch undergoes strict protocol testing in state-of-the-art facilities for identity, microbial contamination, heavy metals (lead, cadmium, arsenic, mercury), and potency.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Peer-Reviewed Scientific References
Scaglione, F., & Panzavolta, G. (2014). Folate, folic acid and 5-methyltetrahydrofolate are not the same thing. Xenobiotica, 44(5), 480-488. PMID: 24494987.
Miraglia, N., Agostinetto, M., Bianchi, D., & Valoti, E. (2016). Enhanced oral bioavailability of a novel folate salt: comparison with folic acid and a calcium folate salt in a pharmacokinetic study in rats. Minerva Ginecologica, 68(2), 99-105. PMID: 27008238.
Paul, C., & Brady, D. M. (2017). Comparative Bioavailability and Utilization of Particular Forms of B12 Supplements With Potential to Mitigate B12-related Genetic Polymorphisms. Integrative Medicine: A Clinician's Journal, 16(1), 42-49. PMID: 28223907.
Selhub, J. (1999). Homocysteine metabolism. Annual Review of Nutrition, 19, 217-246. PMID: 10448523.
Bensky, M. J., Ayalon-Dangur, I., et al. (2019). Comparison of sublingual vs. intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency. Drug Delivery and Translational Research, 9(3), 625-630. PMID: 30632091.
Frequently Asked Questions (FAQ)
What is the difference between Methylcobalamin and Cyanocobalamin?
Cyanocobalamin is an artificial, synthetic compound made with a cyanide molecule attached to cobalamin. Your body must remove the cyanide and convert the compound before using it. Methylcobalamin is the natural, bioidentical coenzyme form already found in human cells, providing immediate activity without burdening your liver.
Can I take this supplement if I have an MTHFR gene mutation?
Yes. In fact, this formulation was specifically crafted for individuals with MTHFR variants. Standard folic acid cannot be easily converted by people with this mutation, leading to poor folate utilization. The Quatrefolic® (5-MTHF) in Solaray Methyl B-12 Plus Methyl Folate is already in the fully reduced, bioactive form, completely bypassing the defective MTHFR enzyme.
Why are these vitamins delivered as a sublingual lozenge instead of a swallowable pill?
Normal oral absorption of vitamin B12 requires a healthy stomach lining, strong hydrochloric acid, and adequate production of "intrinsic factor." Millions of people—especially seniors, vegans, and those with digestive challenges—absorb very little B12 through their intestines. Dissolving a lozenge under your tongue allows nutrients to absorb directly through the oral mucosa and into the blood vessels, avoiding digestive degradation.
Can Vitamin B12 and Methyl Folate cause side effects?
Both nutrients are water-soluble, meaning excess amounts are normally excreted safely through urine. However, because these active forms immediately fuel the methylation cycle, some sensitive individuals may experience mild hyperactivity, sleep disturbance if taken late in the day, or temporary flushing. If you notice any jitteriness, reduce your intake to half a lozenge until your body adjusts.
Why is the Vitamin B12 dosage listed as 83,333% of the Daily Value?
Even through sublingual absorption, your body absorbs only a percentage of high-dose cobalamin via passive diffusion. Clinical research demonstrates that delivering 1,000 mcg to 2,000 mcg ensures sufficient saturation to rebuild depleted tissue stores and cross the blood-brain barrier. Vitamin B12 has an established safety profile with no established Upper Tolerable Intake Level (UL) by the National Institutes of Health.
Does this lozenge contain sugar or artificial sweeteners?
No. Solaray sweetens this lozenge with tooth-friendly plant-derived xylitol, organic inulin, and stevia leaf extract, paired with natural cherry flavors. It contains zero sucrose, high-fructose corn syrup, aspartame, or sucralose.
