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Sodium phytate

Sodium phytate suppliers and sourcing guide

Sodium phytate is the sodium salt of phytic acid (myo-inositol hexaphosphate), the compound plant seeds use to store phosphorus. Phytic acid is extracted from rice bran or corn with dilute acid, purified by ion exchange or precipitation, and neutralized with sodium hydroxide. It is sold as a clear aqueous solution or a white to off-white powder. Cosmetic brands buy it as a plant-derived chelating agent, often to replace EDTA in natural-positioned products.

Also known as
Phytic acid sodium salt · Sodium inositol hexaphosphate · Myo-inositol hexakis(dihydrogen phosphate), sodium salt · CAS 14306-25-3
Facts checked
November 2026

Forms and grades of sodium phytate

Suppliers sell different products under the same name. Specify the one you need.

  • Aqueous solution

    A ready-to-use solution at a stated concentration, easy to dose in water phases; usually preserved or made at a pH that limits microbial growth.

  • Powder

    Dry sodium phytate that ships and stores with less weight and fewer microbial concerns.

  • Phytic acid

    The acid form, sold as a solution and used where the formula is neutralized later; a separate ingredient on the label.

  • Natural-standard approved grades

    Grades approved under COSMOS or similar natural and organic cosmetic standards, with the plant source stated.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Assay
Sodium phytate or phytic acid content by titration, HPLC or ion chromatography, as stated on the COA.
pH
pH of the solution as supplied or of a stated dilution of the powder.
Inorganic phosphate
Free phosphate, which rises if the phytate breaks down.
Appearance and color
Clarity and color of the solution, which darken with age and heat.
Heavy metals
Lead, arsenic and other elements by ICP-MS or ICP-OES against the supplier's specification or the applicable USP, NF or cosmetic-grade limit.
Microbiology
Total aerobic count, yeast and mold, and absence of specified organisms such as E. coli, S. aureus and P. aeruginosa.

Storage, lots and expiry

Storage and shelf life

Store sodium phytate sealed at room temperature away from heat and direct light; solutions keep best in full, closed containers to limit contamination. Powder should be kept dry. Shelf life follows the supplier's retest date, with assay, color and microbiology repeated on older stock.

Lots and expiry dates

Assay and color can differ between lots and plant sources, so record both along with the source (rice or corn) for each lot. For solutions, adjust the dose to the actual assay rather than a nominal concentration.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

  • Health Canada's Natural Health Products Ingredients Database lists sodium phytate under the proper name myo-inositol, hexakis(dihydrogen phosphate), sodium salt (CAS 14306-25-3), with the non-medicinal purpose chelating agent for topical use.

    Source: webprod.hc-sc.gc.ca (opens in a new tab)

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Sodium phytate suppliers

Manufacturers and distributors whose own websites say they sell it.

We are checking sodium phytate suppliers now

Every listing is checked against the supplier’s own website before it goes live, so this list fills in over the coming weeks. The specs and COA checklist above are ready today.

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Frequently asked questions

What forms of sodium phytate can brands buy?

Common forms include aqueous solution, powder, phytic acid and natural-standard approved grades. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for sodium phytate include?

Expect assay, pH, inorganic phosphate, appearance and color, heavy metals and microbiology, each with its method, specification and result for that lot.

How should sodium phytate be stored?

Store sodium phytate sealed at room temperature away from heat and direct light; solutions keep best in full, closed containers to limit contamination. Powder should be kept dry. Shelf life follows the supplier's retest date, with assay, color and microbiology repeated on older stock.

What is the regulatory status of sodium phytate?

Health Canada's Natural Health Products Ingredients Database lists sodium phytate under the proper name myo-inositol, hexakis(dihydrogen phosphate), sodium salt (CAS 14306-25-3), with the non-medicinal purpose chelating agent for topical use.

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