Folate

Single-ingredient folate reference formula at 800 mcg per serving, developed as a tablet, capsule or gummy.

Folate is a reference formula for brands building a single-ingredient folate product at a default amount of 800 mcg (0.8 mg) per serving. Folate is the only active ingredient, so the development work centers on the choice between folic acid and a methylated folate such as L-methylfolate, the premix needed to blend a microgram-level active, and how the amount is expressed on the label.

Tablet is the lead format because an 800 mcg amount of folic acid fits a small compressed unit from a premix, while capsule and gummy versions use the same active with different carrier systems. Label amounts in the reference set are spread across many levels, so the 800 mcg default is a starting point that the brand sets for its market.

Ingredient Composition

IngredientPer ServingRaw Material FormAlternative Form (same amount of active)
Folate800 mcg (default amount)Folic acid, pharmaceutical or food grade, as a premix on a carrier; specification 800 mcg folic acid per servingL-methylfolate calcium (5-MTHF), with the input recalculated to the amount of active the brand declares

Amounts are stated as mcg of folic acid (C19H19N7O6, 441.4 g/mol; PubChem CID 135398658); 800 mcg equals 0.8 mg. L-methylfolate calcium (C20H23CaN7O6, 497.5 g/mol; PubChem CID 135564391) is a salt of the methylated folate, so its weight per unit of folate active is higher than that of folic acid and the input is set from the supplier assay. Labels that state mcg DFE (dietary folate equivalents) follow a separate labeling convention and are listed apart from mcg of folic acid.

Intended Benefits & Formula Rationale

This formula is designed for products positioned around daily folate intake and preconception nutrition. Folate is included as the single active so that the form, the amount and the premix can be set without interaction with other actives.

Intended Benefit DirectionKey IngredientsFormulation Rationale
Daily folate intakeFolateIncluded as an essential micronutrient and cofactor in one-carbon metabolism that mammals cannot synthesize [1]. Evidence: Referenced
Preconception nutritionFolatePositioned around nutrition before pregnancy because an evidence update for the US Preventive Services Task Force reported observational findings of a lower risk of neural tube defects with folic acid supplementation taken before pregnancy, with no significant harms reported in the studies reviewed [2]. Evidence: Referenced

One active at one stated amount keeps the label simple. The review in [1] describes folic acid, folinic acid and 5-methyltetrahydrofolate as different supplemental forms, so the form is a decision for the brand and its target market.

Available Formats

The folate reference formula is built for tablet, capsule and gummy versions; pack counts are suggestions that the brand can adjust.

FormatUnitPer ServingPack SizeOther Ingredients (typical)Suitability
Tablet1 tablet800 mcg60 or 120 tabletsCellulose, lactose or a non-dairy filler, calcium stearateLead format; small compressed unit
Capsule1 capsule800 mcg60 or 90 capsulesCellulose, flow agent, capsule shellPremix in a standard fill
Gummy2 gummies800 mcg60 gummies (30 servings)Pectin, glucose syrup, sugar or sugar alcohol, acidulant, flavor, colorantNeeds an overage plan and stability work

Raw Material Input & Fill (Design Estimate)

Design estimates. The input is the labeled amount divided by the assumed assay of the raw material: folic acid is taken at 100% and blended as a 1% premix on a carrier, so 800 mcg of folic acid needs 80 mg of premix per serving.

FormatRaw Material Input per UnitDesign FillBalance for ExcipientsVerification Before Scale-Up
Tablet80 mg premix200 mg tablet weight120 mgContent uniformity, hardness, disintegration, content assay
Capsule80 mg premix250 mg per capsule170 mgBlend uniformity, fill weight variation, content assay
Gummy40 mg premix per gummy (2 per serving)3500 mg per gummy3460 mgDispersion in the depositing mass, content assay through shelf life

Powder and liquid versions are separate projects, because a microgram-level folate in a dissolving format needs its own light and moisture protection plan.

Formulation Considerations

Microgram load in a premix. At 800 mcg, folic acid is a tiny fraction of the unit weight. A premix on a carrier and a defined blending order are set early, and content uniformity of the first units decides whether the premix dilution holds.
Folic acid or methylated folate. The review in [1] states that 5-methyltetrahydrofolate is well absorbed when gastrointestinal pH is altered and is not affected by common metabolic defects, which is the argument for L-methylfolate. It is a calcium salt with a different weight per unit of active, a different cost and its own stability profile, so the form is chosen together with the target market.
Label expression. A large part of the reference labels state mcg DFE rather than mcg of folic acid, and the two conventions are not interchangeable without the form and the intake conditions. The label unit follows the rule of the sales market, and the factor used for any conversion is written into the specification.
Gummy overage and stability. Heat, light and moisture in a gummy depositing mass can reduce the folate in the finished unit, so an overage and a stability plan are set in the pilot run rather than assumed.

Customization Options

Brands adjust the amount per serving, the folate form, the format and the label unit.

ParameterRangeNote
Amount per serving360, 400, 800 or 1000 mcgOptions for the brand; premix weight scales with the tier
Folate formFolic acid or L-methylfolate calciumInput recalculated to the declared active; the salt weighs more per unit
Label unitmcg or mcg DFESet by the sales market; the conversion basis is written into the specification
FormatTablet, capsule or gummyPowder and liquid are separate projects
Add-onsVitamin B12, vitamin B6, ironA second active changes the premix plan and the uniformity check

The pilot run confirms blend and content uniformity of the folate premix, gummy retention through shelf life in the gummy version, and the content assay of the first units against the labeled 800 mcg.

Flavor Options

FormatSuggested FlavorsWhy
GummyMixed berry, orange, strawberryFruit profiles suit a gummy base and cover the mild taste of the vitamin

Technical Status & Data Sources

ItemStatusDetails
Reference formulaNIH DSLDThe ingredient and amount come from a labeled product in the NIH DSLD (800 mcg on the label of CF000596; example DSLD labels 3758, 6366, 20509). The label names the ingredient as folate; folic acid is set as the form.
SpecificationSet in formulationFolic acid, 800 mcg per serving; assay, premix dilution and limits and method are fixed with the supplier. Unit size, fill weight and stability are set in formulation.
Data sourceNIH DSLDDSLD v9.4.0, downloaded 2026-01-10: 50,824 reference formulas merged from on-market labels with complete ingredient amounts. Counts show how labels are distributed.
Market reviewPer marketDose limits, labeling and claims are reviewed for each sales market before a finished product is developed.
ReferencesSources[1] Scaglione F, Panzavolta G. Folate, folic acid and 5-methyltetrahydrofolate are not the same thing. Xenobiotica. 2014;44(5):480-8. DOI · PubMed<br>[2] Viswanathan M, Urrutia RP, Hudson KN, et al. Folic Acid Supplementation to Prevent Neural Tube Defects: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA. 2023;330(5):460-466. DOI · PubMed

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