What Is Folic Acid?

Folic acid is the synthetic form of folate, the B-vitamin that cells use for DNA synthesis, red blood cell formation and the methylation reactions behind healthy homocysteine levels. In the body it is reduced to tetrahydrofolate, the active coenzyme of one-carbon metabolism. Because it is more stable and bioavailable than natural food folate, folic acid is the global standard for supplements and mandatory food fortification programs, and it is the key nutrient recommended around pregnancy for neural tube development. Core Nutrix supplies it to USP, EP, BP and JP monographs at 96.0% minimum assay.

Key Facts at a Glance

• Active content: Folic Acid 96.0% (HPLC)
• CAS number: 59-30-3
• Appearance: Yellow to orange crystalline powder
• Grades: USP / EP / BP / JP
• Solubility: Practically insoluble in water; sodium salt and microencapsulated forms available
• Light sensitivity: Protect from light and moisture
• Packaging: 25 kg fiber drums, double PE liner
• Shelf life: 36 months in sealed, light-protected, cool, dry storage

Origin & Sourcing

Manufactured in dedicated micronutrient facilities to pharmacopoeia monographs, with tight control of related substances and residual solvents. The crystalline powder is light-sensitive, so production, packing and warehousing follow light-protection protocols. For formulators, the portfolio includes the standard crystalline grade, a water-soluble sodium salt and microencapsulated forms that survive premix processing. Every batch ships with COA and full documentation, and retains up to 36 months under sealed, light-protected storage.

Key Benefits

• Essential for neural tube development in early pregnancy
• Supports red blood cell formation and normal blood counts
• Cofactor for methylation and healthy homocysteine levels
• Global standard for food fortification programs
• USP/EP/BP/JP grades simplify global regulatory filings
• Microencapsulated forms stay stable in premixes

Applications

Prenatal multivitamins, B-complex and energy formulas, flour and cereal fortification, infant nutrition and clinical nutrition products. Because active doses are in micrograms, most manufacturers use pre-mixed triturations, and our microencapsulated grade is designed exactly for that premix workflow.

Why 2026 Matters

Prenatal nutrition is a consistently growing category, and the WHO recommendation of 400 mcg per day before and during early pregnancy keeps folic acid a staple ingredient. Fortification mandates across dozens of countries add a steady industrial demand. For brands, the supply-side differentiator is monograph coverage – one USP/EP/BP/JP grade that simplifies registration in multiple markets. The category keeps professionalizing: prenatal formulas increasingly carry USP-grade claims, and fortification programs audit suppliers against pharmacopoeia monographs. A multi-monograph grade with light-protected packaging and 36-month stability simplifies registration and reduces the quality-audit burden for brands selling into multiple markets – which is the practical value behind a JP/EP/USP-covered supply.

Science Snapshot

Folate coenzymes carry one-carbon units for nucleotide synthesis and for the methylation of homocysteine back to methionine. Supplementation studies established folic acid’s role in preventing neural tube defects, which led to global fortification policies, and controlled trials show it reliably lowers homocysteine. Some individuals carry MTHFR variants that slow conversion to the active form; for that segment, 5-MTHF (methylfolate) is used instead, and we can advise on which form fits the target market. Because folic acid must be reduced and methylated to become active, the MTHFR enzyme is the rate-limiting step, and carriers of reduced-function variants sometimes prefer 5-MTHF. For standard fortification and general supplementation, folic acid remains the recommendation because of its stability, proven safety record and the weight of clinical evidence behind it. The body’s handling of folic acid is also well characterized, which simplifies dosing guidance for regulators and formulators alike.

Quality & Specifications

• Actives: Folic Acid 96.0% (HPLC)
• Grades: USP / EP / BP / JP, food and pharma
• Appearance: Yellow to orange crystalline powder
• Solubility: Sodium salt and microencapsulated forms
• Packaging: 25 kg fiber drums, double PE liner
• Shelf life: 36 months in sealed, light-protected storage

Safety & Regulatory

Safe at standard supplemental levels up to the established upper limit of 1000 mcg per day. High doses can mask vitamin B12 deficiency, so combined formulas should be reviewed by a healthcare professional.

Formulation Notes

Dosing at microgram scale requires careful dispersion – the microencapsulated grade and pre-mixed triturations prevent content uniformity failures. Protect the crystalline powder from light and moisture during storage and compounding. For liquid formats the sodium salt provides solubility, and for premixes the encapsulated form survives heat and mixing. Pairs with vitamin B12, iron and vitamin C in prenatal and hematinic formulas.

How It Compares

• Folic acid vs 5-MTHF: folic acid is the stable, cost-effective global standard; 5-MTHF (methylfolate) bypasses MTHFR conversion and suits premium or personalized lines.
• Folic acid vs food folate: food folate is less stable and less bioavailable; folic acid is the form used in fortification and most clinical research.
• Crystalline vs microencapsulated: crystalline powder suits direct compounding; microencapsulation protects against light, moisture and premix stress.
• Free acid vs sodium salt: the free acid is practically water-insoluble; the sodium salt dissolves for liquid and spray-dried formats.

Frequently Asked Questions (FAQ)

What grades of folic acid do you supply?

USP / EP / BP / JP pharmaceutical and food grades at 96.0% minimum assay (HPLC), plus sodium salt and microencapsulated forms.

Can you provide a COA and third-party test report?

Yes. Every batch ships with a Certificate of Analysis, and third-party testing is available on request.

What is the MOQ and packaging?

Standard packaging is a 25kg drum. Please contact us for current MOQ and sample availability.

Is folic acid the same as folate?

Folic acid is the stable synthetic form of folate, the natural B9 found in food. The body converts it into the same active coenzyme.

How do you handle microgram-level dosing?

We supply microencapsulated grades and can arrange pre-mixed triturations so content uniformity stays reliable in premixes.

How should folic acid be stored?

Keep it sealed, cool and dry, protected from light. Shelf life is 36 months under these conditions.

Is it suitable for food fortification?

Yes. Folic acid is the global standard for flour, cereal and staple-food fortification programs.

How to Get Started

1. Tell us your format and target dose – capsules, powders, tablets, gummies or beverages.
2. We confirm the matching grade, send the specification sheet and a free sample.
3. Approve the sample and run a trial batch; we lock the COA and lead time.
4. Scale to full production with batch-to-batch consistency guaranteed.