Liquid B Complex 15.2 fl oz


Liquid B Complex is a delicious combination of seven B vitamins, plus choline and inositol. It provides the daily requirements for thiamin, riboflavin, niacinamide, vitamin B6, vitamin B12, biotin and pantothenic acid.

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Liquid B Complex

Liquid B Complex, by Genestra Brands, is a delicious combination of seven B vitamins, plus choline and inositol. It provides the daily requirements for thiamin, riboflavin, niacinamide, vitamin B6, vitamin B12, biotin and pantothenic acid.

B vitamins play an important role in energy metabolism as cofactors for numerous biochemical reactions in the body. Vitamins B6, B12 and riboflavin are particularly critical in the metabolism of the amino acid metabolite homocysteine.

Vitamin B12 has an additional role supporting immune system function and is involved in red blood cell formation alongside vitamin B6. In addition, biotin helps maintain cognitive functions as well as healthy hair, nails, mucous membranes and skin.

Liquid B Complex also provides choline, a lipotrope that helps support liver function, plus inositol, an important second messenger and component of the phospholipid membrane.


Broad-spectrum Liquid B Complex

  • Helps to maintain cognitive function, normal immune function and energy production
  • Aids in the maintenance of healthy hair, nails and skin
  • Convenient liquid format
  • Great-tasting, natural tangerine-cherry flavor

Improved formula Now available in a 15.2 fl oz bottle

Supplement Facts

Serving Size 1 Teaspoon (5 ml)
Servings per Container 90

  • Calories – 10
  • Total Carbohydrate – 3
  • Total Sugars – 1
    Includes 1 g Added Sugars
  • Thiamin (as thiamin hydrochloride) – 50 mg
  • Riboflavin – 50 mg
  • Niacin (as niacinamide) – 75 mg
  • Vitamin B6 (as pyridoxine hydrochloride) – 50 mg
  • VitaminB12 (ashydroxocobalaminacetate/methylcobalamin) – 75 mg
  • Biotin – 200 mcg
  • Pantothenic Acid (as d-panthenol) – 75 mg
  • Choline (as choline chloride) – 50 mg
  • Chloride – 60 mg
  • Inositol – 50mg

Other ingredients: Purified water, concentrated apple juice, glycerin, natural flavors, citric acid, rebaudioside A (stevia leaf extract), xanthan gum, potassium sorbate.

Recommended Adult Dose

Take one teaspoon of Liquid B Complex two times daily with meals or as recommended by one of our health coach practitioners. Shake well before each use.

Scientific Rationale

Thiamin (vitamin B1) is involved in nutrient metabolism and energy production through its coenzyme form thiamin pyrophosphate (TPP), also known as thiamin diphosphate.

Within the mitochondria, TPP is an important coenzyme for the production of acetyl-CoA, succinyl-CoA and branched-chain amino acid metabolites, which play key roles in the Krebs cycle (a metabolic pathway that helps produce energy from food).

TPP is also necessary for the hexose monophosphate shunt (also known as the pentose phosphate pathway). This pathway helps generate pentoses and NADPH, a niacin-containing enzyme involved in various biosynthetic reactions. 

Riboflavin (vitamin B2) is an important component of flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). These coenzymes are responsible for electron transfer in many oxidation-reduction (red-ox) reactions.

Riboflavin-dependent enzymes are particularly essential for nutrient metabolism and can help activate pyridoxine and folate to their respective coenzyme forms. Riboflavin also helps to maintain normal red blood cells by protecting them against oxidative stress.

In its coenzyme form FAD, riboflavin is required for the function of glutathione reductase, which supports intracellular levels of reduced glutathione, an important intracellular antioxidant.

Furthermore, riboflavin can form complexes with divalent cations, such as Fe2+. As such, it may influence iron bioavailability and metabolism. 

Niacin is necessary for the synthesis of the pyridine nucleotides NAD(H) and NADP(H), the primary electron carriers in cells. These enzyme co-substrates participate in nearly all aspects of metabolism, including more than 200 reactions involving intracellular respiration and the oxidation of fuel molecules.

NAD, the oxidized form, accepts hydrogen ions to form NADH, which can donate hydrogen ions to the mitochondrial respiratory chain for ATP production. NAD can be phosphorylated to NADP and reduced to NADPH, important compounds in the biosynthesis of steroids and fatty acids.

NADPH is also involved in the oxidation of glucose 6-phosphate in the hexose monophosphate shunt. 

The metabolically active form of vitamin B6 is pyridoxal 5′-phosphate (PLP). PLP is a coenzyme of more than 140 enzymes primarily involved in the synthesis and breakdown of amino acids. It has an important role in gluconeogenesis, the production of glucose from non-carbohydrate precursors, including amino acids.

As a coenzyme for glycogen phosphorylase, PLP is also required for the release of glucose from glycogen.

Although most of the body’s vitamin B6 is present in the muscle (70-80%), red blood cells contain high levels of the vitamin. PLP supports red blood cell formation through the synthesis of heme, an iron-containing part of hemoglobin.

In addition, vitamin B6 is a cofactor for two enzymes in the tryptophan-kynurenine pathway, which converts tryptophan into the niacin coenzyme NAD. 

Vitamin B12 plays an important role in metabolism through its coenzyme forms methylcobalamin. Methylcobalamin is required for methionine synthase, an enzyme that converts homocysteine to methionine.

In turn, methionine is needed for the production of S-adenosylmethionine (SAM), a donor of methyl groups for more than 100 metabolic reactions, including creatine, phospholipid and acetylcholine synthesis.

In addition, vitamin B12 helps in immune system and cognitive function, as well as red blood cell formation. As this vitamin is synthesized by bacteria and rarely present in plant-based foods, individuals consuming strict vegetarian or vegan diets may benefit from vitamin B12 supplementation.

Biotin is involved in nutrient and energy metabolism as a component of five biotin-dependent carboxylases. These carboxylases play important roles in gluconeogenesis, as well as fatty acid synthesis, elongation and oxidation. Biotin is also associated with cognitive function and healthy hair, nails, mucous membranes, and skin. 

Pantothenic acid (vitamin B5) has a key role in metabolism as a component of coenzyme-A (CoA) and acyl-carrier protein (ACP). CoA is a cofactor for 4% of known enzymes.1 It is involved in the transfer of acyl groups in reactions primarily associated with energy metabolism.

CoA also has an important role in the production of fatty acids, membrane phospholipids, cholesterol, amino acids, vitamins A and D, and the neurotransmitter acetylcholine. Similarly, ACP is required for the function of fatty acid synthase, an enzyme complex responsible for the production of fatty acids. 

Choline is found in all tissues as an important structural component of the phospholipid membrane. Choline helps support liver function by promoting the export of very low density lipoproteins (VLDL) from the liver.

Furthermore, choline is required for the production of the neurotransmitter acetylcholine and has a role in methyl metabolism, including the transfer of methyl groups for homocysteine metabolism. 

Inositol plays a key role in membrane structure and function in the form of phosphatidylinositol. It also serves as a second messenger in the form of inositol 1,4,5-triphosphate (IP3), which helps release calcium ions from intracellular storage. 

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