Sodium Metabisulfite is an Antioxidant / reducing agent supplied by MakeYourSkin as a powder for professional cosmetic formulation. Used worldwide across mainstream cosmetic formulation, it is valued for oxidation control in aqueous systems.

What is Sodium Metabisulfite?

Sodium Metabisulfite is supplied under the INCI / technical name Sodium Metabisulfite and carries CAS number 7681-57-4.

It belongs to the Antioxidant / reducing agent group and is derived from synthetic. The material reaches you as a powder. It is an established cosmetic raw material with mature supply and well-understood formulation behaviour.

Key Properties & Benefits

• Oxidation control in aqueous systems
• Supplied cosmetic grade with a Certificate of Analysis for every batch.

Uses & Applications

Sodium Metabisulfite is used in every water-containing format where stability, clarity and preservative efficacy matter.

Typical applications from the catalogue record: Vitamin C systems, self-tanners, hair products.

As a formulation essential it is specified by function rather than by claim, and the level is set by the performance the formula needs rather than by a marketing target.

Handling note: Weigh accurately and dissolve or disperse fully before the batch is judged — undissolved powder reads as grit in the finished product.

How to Use — Recommended Use Level

No single published use level applies to every grade of this material, so the figure above is a general starting rule rather than a specification.

General rule: always begin at the lower end of the range, confirm the level against the supplier technical data sheet, and validate stability, pH, colour, odour and preservative efficacy on the finished formulation before scaling up.

Technical Specification

Technical Notes

Effective but a recognised sensitiser for a small group of consumers.

Regulatory Note

Supplier diligence required: Sulphite sensitivity and labelling considerations apply in some markets.

Sold as a cosmetic raw material for professional formulation. A published INCI name does not by itself authorise use: the buyer is responsible for confirming permitted status, maximum concentration, restrictions by product type, labelling and claim rules in every market the finished product is sold in. In India, cosmetics fall under the Drugs and Cosmetics Act 1940 and the Cosmetics Rules 2020 administered by CDSCO, with BIS standards (including IS 4707 Part 2) listing restricted substances. The EU applies Regulation (EC) No 1223/2009 and its Annexes; the United States applies the FD&C Act as amended by MoCRA; Korea, Japan and China operate their own positive lists and functional-cosmetic frameworks. Every finished product needs its own safety assessment.

Reference: Regulatory / scientific reference

Documentation Supplied

• Certificate of Analysis (CoA) for the batch supplied
• Safety Data Sheet (SDS / MSDS) in the current GHS format
• Technical Data Sheet (TDS) with specification, solubility and handling guidance
• INCI declaration and, where assigned, CAS / EINECS numbers
• Non-GMO statement on request
• Vegan / animal-origin declaration on request
• Halal and Kosher certification on request where the supplier holds it
• Heavy-metal and microbiological test data on request

Available Pack Sizes

Supplied in 50 g, 225 g, 1 Kg and 5 Kg packs. Bulk quantities above 5 Kg, and drum or sack quantities, are available on request — contact the MakeYourSkin sales desk for a quotation and lead time.

Disclaimer & Caution in Use

For external cosmetic use in professionally formulated products only. This is a concentrated raw material, not a finished cosmetic, and it is not intended for undiluted application to skin, for ingestion, or for any medicinal purpose. Wear gloves and eye protection when handling, avoid raising dust with powders, and keep out of reach of children and pets. Always run a patch test on the finished formulation, and validate stability, compatibility, pH and preservative efficacy before sale. Information supplied is offered in good faith as formulation guidance and does not constitute a safety assessment, a regulatory approval or a medical claim.

Fine powder — avoid generating and inhaling dust. Use local exhaust ventilation or a suitable respirator when weighing, and wet the powder into the formulation phase rather than dry-blending in open air.

Recognised contact sensitiser. Observe the legal maximum strictly, include the required label warnings, and consider excluding it from products aimed at sensitive or compromised skin.