Sodium Metabisulfite

Description

Sodium Metabisulfite or sodium pyrosulfite is mostly known as inorganic salt used as a disinfectant and preservative agent in cosmetics and personal care products. It is also considered a reducing agent that donates hydrogen molecules to other substances in cosmetics and personal care products. This ingredient can sometimes function as an antioxidant, preventing or slowing deterioration of formulas caused by chemical reactions with oxygen. The substance is sometimes referred to as disodium metabisulfite. When dissolved in water it forms sodium bisulfite.

Sodium Metabisulfite is seen as an ingredient primarily in hair care products, such as formulas for permanent waves, hair bleaches, hair dyes, colors and tints, and also in some bath and skincare products.

Sodium metabisulfite helps to prevent the formulations from going bad and losing their effectiveness by protecting them from the damaging effects of oxygen.

Sodium metabisulfite is also used to improve the appearance of hyperpigmentation on the skin, remove excess hair color, and prevent discoloration caused by chlorine. It appears as a white crystalline powder and has a sulfur-like odor. With chemical formula Na2S2O5.

What does SODIUM METABISULFITE do in a formulation?

1. Antioxidant
2. Preservative
3. Disinfectant
4. Stabilizer

What is SODIUM METABISULFITE used for?

Sodium metabisulfite is quite a versatile ingredient that finds many applications in the world of personal care and cosmetics. It can be found in a range of products like hair dyes, shampoos, sunscreens, concealers, etc.

Skin care: It works to improve the appearance of hyperpigmentation and dark spots. It is also anti-aging and prevents damage caused by free radicals. The antimicrobial properties of Sodium metabisulfite can further inhibit the growth of acne-causing bacteria on the skin.

Hair care: It is known to have conditioning properties that can help to improve the overall health of the hair. It helps to strengthen the hair and prevent damage caused by environmental stressors. Sodium metabisulfite is also used in hair straightening treatments to break down the protein bonds in the hair, allowing it to be reshaped and straightened.

Cosmetic products: It prevents the oxidation of cosmetic ingredients, such as oils and fats, which can lead to rancidity, off-odors, and changes in color. This preservative is particularly used in aqueous formulations, to prevent the growth of microorganisms that can spoil the product.

ORIGIN: Sodium metabisulfite is made by combining sodium carbonate and sulfur dioxide. The two compounds are reacted in a furnace at high temperatures, which produces sodium metabisulfite as a white crystalline powder. The resulting product is then purified and packaged for use.

BENEFITS OF USING SODIUM METABISULFITE:

• Acts as a preservative to prevent microbial contamination

• Helps stabilize formulations by reducing oxidation

• Protects sensitive ingredients like vitamins and plant extracts

• Prevents discoloration in water-based solutions

• Enhances shelf life and maintains product integrity

• Suitable for hair dyes, creams, lotions, serums, and gels

• Often used in low concentrations for safety and efficacy

CAS NO: 7681-57-4

INCI: sodium metabisulfite

Appearance: white crystalline powder

Usage rate: 0.001-0.2% (up to 0.5%)

pH: 4.5-5.5

Solubility: Highly soluble in water

Compatibility: it is compatible with other cosmetics ingredients

Origin: Germany

Grade: Cosmetics grade

Applications: Skin and Hair Care Products.

Packaging: Our powders are packed in water proof ziplock pouches to avoid spillage.

Recommended Storage: Our powders should be stored in cool temperatures away from direct sunlight and moisture in an airtight container.

Shelf life: 36months from manufacturing date or testing date.(current Lot will expire 09-2028)

DISCLAIMER:
– DAKITZ NATURAL PRODUCTS are for cosmetic, personal care formulations and are meant for external use only unless otherwise STATED. This information is not intended to diagnose, treat, cure, or prevent any disease.

Kindly note that you are responsible for researching, testing, and understanding ingredients before buying. – We recommend working with a chemist or a formulator if you’re not advanced in formulating.