What Is Myo-Inositol?

Myo-inositol is a naturally occurring sugar alcohol and the most abundant inositol isomer in the human body. It builds cell membranes and acts as a precursor of the signalling molecules that relay cellular and neurotransmitter messages. Inside cells it is converted into phosphatidylinositol lipids, the substrates of the IP3/DAG signalling cascade – one of the most studied second-messenger systems in cell biology. Because cells rely on this pathway, inositol availability is directly relevant to metabolic-wellness research. Nutritionally it is often grouped with the B-vitamin family as vitamin B8, although the body can produce it, so it is not an essential vitamin. Core Nutrix supplies it as white crystalline powder or directly compressible (DC) granules with 95-99% purity, produced at world scale.

Key Facts at a Glance

• Active content: Inositol 95-99% (HPLC)
• CAS number: 87-89-8
• Appearance: White crystalline powder or granules
• Solubility: Freely soluble in water
• Typical serving: 2-4 g per day in women’s wellness protocols
• Common ratio: 40:1 myo-inositol to D-chiro-inositol
• Packaging: 25 kg drum (custom formats available)
• Shelf life: 24 months in sealed, cool, dry storage

Origin & Sourcing

Produced at one of the world’s largest inositol operations with 6,000 tons of annual capacity. Inositol is recovered from corn-derived phytate by hydrolysis, purified through multiple crystallization steps, and converted into DC granules by roller compaction – a dry granulation process that produces free-flowing, dust-free granules that compress directly into tablets without wet granulation. The corn-based route is part of a circular-economy chain that also yields co-products such as phytic acid and sodium phytate. Every batch is assayed by HPLC and ships with a complete documentation set: COA, MSDS, allergen statement, GMO status and production flow chart.

Key Benefits

• Acts as a cell-signalling messenger in the body
• Studied for women’s wellness support, typically 2-4 g per day alone or at 40:1 with D-chiro-inositol
• Studied for metabolic markers and hormone-related nutrition in clinical research
• Investigated in mood and calm-related research
• Mildly sweet, stable and highly soluble for powders and beverages
• DC granules enable direct-compression tablets without wet granulation

Applications

Women’s wellness and women’s-health capsules, women’s metabolic-health formulas, mood-support powders, effervescent tablets, gummies, infant nutrition (food grade) and prenatal multivitamins. Growing uses include sports-nutrition and metabolic-wellness formulas, men’s-health category support, and prenatal protocols under medical supervision. It is also increasingly used in functional beverages and drink mixes, where its mildly sweet taste and fast dissolution simplify production.

Why 2026 Matters

Women’s wellness is one of the largest and fastest-growing supplement categories worldwide, and women’s metabolic health ranks among its strongest growth drivers. Inositol has become a standard ingredient in that space, with demand coming from women’s-health awareness, metabolic-wellness protocols and mood-support lines. A 6,000-ton supply with DC granulation lets brands launch at scale without supply risk – the main constraint most formulators face in this category. For OEM customers, it also means one ingredient spanning three separate SKU lines: women’s health, metabolic health and mood.

Science Snapshot

Myo-inositol is a precursor of inositol phosphates and phosphatidylinositol, the membrane lipids that carry the cell’s second-messenger signals. Human trials in women’s wellness commonly use 2-4 g per day; meta-analyses report changes in metabolic, ovarian and hormonal markers, particularly with the 40:1 myo-inositol to D-chiro-inositol ratio, which mirrors the ratio found in healthy tissues. In the ovary, inositol signaling modulates theca-cell signalling pathways, which is why supplementation is studied in women’s-health research. Smaller trials have examined 12-18 g per day for mood-related research, and pregnancy-related metabolic protocols are an active research area.

Quality & Specifications

• Actives: Inositol Powder / Granular (DC) 95-99%
• Grades: Crystalline powder, DC granules
• Appearance: White crystalline powder or granules
• Packaging: 25 kg drums (custom formats available)
• Shelf life: 24 months in sealed, cool, dry storage
• Testing: HPLC assay, heavy metals, microbiology per batch, ethylene oxide (EtO), aflatoxins, PAH, pyrrolizidine alkaloids (PAs)
• Compliance: Pesticide residue screened to EU MRLs (EC) 396/2005; Proposition 65 (Prop 65) statement and full contaminant documentation on request
• Note: Business-to-business ingredient information only. Not intended to diagnose, treat, cure or prevent any disease.

Safety & Regulatory

Long-established in food and supplement use at typical servings of 2-4 g per day; up to 12 g per day has been used in supervised studies. Pregnancy-related and medical protocols should be supervised by a healthcare professional.

Formulation Notes

Neutral, slightly sweet taste and excellent water solubility make it ideal for powders, shots and effervescents. DC granules flow well and compress directly into tablets, saving granulation cost and heat exposure. The powder dissolves clear at typical beverage concentrations and stays stable across a wide pH range. Pairs naturally with D-chiro-inositol (40:1), folic acid, chromium and berberine in metabolic stacks; in mood formulas it combines with L-theanine, magnesium and B-vitamins.

How It Compares

• Myo-inositol vs D-chiro-inositol: myo-inositol makes up about 99% of the body’s inositol pool and is the bulk ingredient in women’s wellness formulas; D-chiro-inositol is the rarer isomer linked to glycogen synthesis. The two are commonly combined at 40:1.
• Myo-inositol vs choline: choline is a methyl donor for liver and membrane health, while inositol is a cell-signalling precursor. They are complementary and are often paired in liver-support and prenatal formulas.
• Powder vs DC granules: powder suits capsules, beverages and premixes; DC granules compress directly into tablets, cutting granulation steps and heat exposure.
• Corn-derived vs synthetic routes: the corn-derived hydrolysis route is renewable and integrated with phytate co-products, giving stable large-volume supply and cost.

Frequently Asked Questions (FAQ)

What grades of inositol do you supply?

Powder and directly compressible (DC) granular grades at 95-99% purity, produced at a 6,000-ton capacity corn-derived facility.

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 inositol the same as vitamin B8?

Inositol is informally grouped with the B-vitamin family as vitamin B8, although the body can synthesize it, so it is not classified as an essential vitamin.

How should inositol be stored?

Keep it sealed in a cool, dry place away from light. Shelf life is 24 months under these conditions.

Can you match a competitor’s specification?

Yes. Send us the target specification and we will confirm grade, purity and documentation against it.

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.