High-potency cellular energy, nerve support, and red blood cell production in a fast-dissolving, natural cherry lozenge.
If you often feel sluggish, experience mental fog, or follow a plant-based diet, your body may be asking for more Vitamin B12. Vitamin B-12 (cobalamin) is a critical water-soluble nutrient responsible for fueling your metabolism, producing healthy red blood cells, and protecting your nervous system.
Solaray B-12 1000mcg pairs a clinical-strength dose of Vitamin B12 with 400 mcg of Folic Acid (680 mcg DFE) in an easy, delicious lozenge. Instead of swallowing large pills that depend heavily on complex stomach acid breakdown, these lozenges dissolve right under your tongue for prompt absorption directly through the oral mucosa.
Looking at the supplement facts, you might wonder: "Why does one lozenge deliver 1,000 mcg when the Recommended Dietary Allowance (RDA) for adults is only 2.4 mcg?"
The answer lies in how human biology handles Vitamin B-12. In normal digestion, food-bound B-12 requires strong stomach acid and an escort protein called Intrinsic Factor (IF) produced by the stomach lining. However, intrinsic factor receptors in your intestines become completely saturated after taking in just 1.5 to 2.0 micrograms per meal (Stabler, 2013).
For individuals with reduced stomach acid, gastrointestinal sensitivities, or age-related changes, absorbing B-12 through intrinsic factor becomes difficult. That is where high-dose supplementation comes to the rescue.
Medical studies show that when you take a high dose like 1,000 mcg, your body bypasses the intrinsic factor pathway completely and absorbs roughly 1% to 1.2% through simple passive diffusion across the mucosal lining of the mouth and gut wall (Carmel, 2008). A 1,000 mcg dose reliably yields about 10 to 12 mcg of bioavailable B-12—giving your cells all the cobalamin they need to replenish depleted reserves safely.
Unlike caffeine, Vitamin B-12 does not artificially stimulate your heart or central nervous system. Instead, cobalamin acts as a vital coenzyme in the Krebs cycle inside your mitochondria, helping your cells turn dietary carbohydrates and fats into usable ATP fuel.
Think of your nerves like electrical wiring. B-12 helps synthesize the protective insulation coating that surrounds them, known as the myelin sheath. Maintaining healthy B-12 levels safeguards healthy nerve transmission, protecting against unexplained tingling or numbness in hands and feet.
Your bone marrow depends on B-12 and folate to manufacture healthy, flexible red blood cells. Without sufficient B-12, red blood cells grow abnormally large and fragile (megaloblastic anemia), leaving you feeling chronically breathless and fatigued.
Homocysteine is an amino acid byproduct that, when elevated, can irritate blood vessel walls and affect cognitive performance. B-12 and Folic Acid team up to recycle homocysteine back into harmless methionine, providing essential cardiovascular and cognitive protection.
A common question among supplement shoppers is whether they should choose Cyanocobalamin (used here in Solaray's formula) or Methylcobalamin.
Cyanocobalamin is the most thoroughly researched, stable, and proven form of Vitamin B-12 in clinical history. Once dissolved and absorbed into your bloodstream, your liver readily cleaves the molecule and converts it into the body's two active coenzyme forms: methylcobalamin (for DNA synthesis and homocysteine regulation) and adenosylcobalamin (for mitochondrial energy and nerve sheath repair).
Clinical trials evaluating cobalamin absorption have repeatedly demonstrated that both forms are equally effective at restoring healthy serum B-12 concentrations and correcting deficiency markers in the body (Obeid et al., 2015). Cyanocobalamin offers the added advantage of superior molecular stability against heat and light degradation on the shelf.
While anyone seeking cellular vitality can take this supplement, certain individuals face a significantly higher risk of sub-clinical B-12 depletion:
Getting the full benefit of a sublingual lozenge requires the right administration technique:
Storage Note: Keep the bottle tightly closed in a cool, dry place. Avoid storing in humid bathrooms to protect the integrity of the lozenges.
VitaNet guarantees fresh, authentic Solaray inventory manufactured under strict cGMP (current Good Manufacturing Practices) standards.
Serving Size: 1 Lozenge
Servings Per Container: 90
| Amount Per Serving | % Daily Value |
|---|---|
| Folate (400 mcg Folic Acid) (680 mcg DFE) |
170% |
| Vitamin B-12 (as Cyanocobalamin) 1,000 mcg |
41,667% |
Vitamin B12 exhibits an outstanding clinical safety profile. The National Academies of Sciences, Engineering, and Medicine (Institute of Medicine) evaluated extensive clinical trials and determined that no Tolerable Upper Intake Level (UL) is necessary for Vitamin B-12. Because it is water-soluble, any excess cobalamin your tissues do not require simply passes harmlessly through the urine.
Important Usage Precautions:
Sublingual absorption begins immediately as the lozenge dissolves in your mouth. Cellular energy benefits and mental clarity improvements are often noticed within several days to two weeks of consistent daily use. Rebuilding depleted red blood cells and tissue cobalamin reserves typically takes between 4 and 12 weeks as confirmed by follow-up blood work.
Yes, daily intake of 1,000 mcg is widely used and clinically safe for adults. Because Vitamin B12 is water-soluble, your body uses the fraction it needs via passive diffusion and safely eliminates the remainder through your urine. The Institute of Medicine found no evidence of toxicity and established no upper tolerable limit.
Vitamin B-12 and Folic Acid (Vitamin B-9) work as biological partners. They are both necessary for DNA synthesis, proper red blood cell division, and keeping homocysteine levels in a healthy range. Providing both nutrients together supports balanced methylation and helps avoid nutritional imbalances.
While swallowing it will still provide B-12 to your gut, letting it dissolve slowly under your tongue gives you the maximum advantage of sublingual delivery. Dissolving under the tongue enables nutrients to enter the capillaries of the oral mucosa directly, bypassing potential digestive barriers in the stomach.
Yes. Solaray B-12 1000mcg lozenges are 100% vegan. They are sweetened with sorbitol, a sugar alcohol that does not promote tooth decay and does not cause sugar spikes, complemented by natural cherry flavor.
Review of B 12-1000mcg - Solaray Product 4345
Reviewed by Nikki
Monday, March 12, 2012
Great price for the full 1000 I need as I don't take in enough through my diet and even though I have absorption issues, the dosage is high enough to maintain a safe amount of B12.
Nikki ,
