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Functional sustainable performance

Functional sustainable performance

SODIUM CITRATE

CAS Number	68-04-2 / 6132-04-3
Chem/IUPAC Name:	Trisodium;2-hydroxypropane-1,2,3-tricarboxylate
EINECS/ELINCS No:	200-675-3
COSING REF No:	37816

SODIUM CITRATE

Sodium citrate acts as a buffering agent in cosmetics products to control their pH level. It can also be used as a preservative. It is used in various cosmetic products, including baby products, make-up, bath products, hair dyes and colors and skin care products.

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What is SODIUM CITRATE used for?

Sodium citrate serves as a preservative to ensure safe and durable products by inhibiting microbial growth. It also assists in the regulation of pH of cosmetic formulations.

Skin care: The pH of a product is established and maintained by sodium citrate. While the skin's normal pH is slightly acidic, typically between 4.75 and 5.5, which effectively protects the skin from environmental factors such as allergens, pollutants, and bacteria, sodium citrate can buffer solutions in the pH range of about 3 to 6.2.

The skin's acidity can change as a result of everything that comes into contact with it, including cosmetics, the sun, water, pollution, etc. This ultimately hinders the skin's capacity to defend itself. In order to maintain the skin's normal pH as closely as possible, it is crucial to balance the pH of cosmetics and skincare products. A highly acidic product may irritate the skin, and a highly alkaline one may decrease its lipid contents. By using an ingredient like sodium citrate, cosmetic manufacturers can adjust the pH of their formulations, resulting in a product that is better suited to the skin

Origin

Citrus fruits can be used to extract citric acid, but more than 99% of the citric acid consumed worldwide is produced through microbial fermentation. Citric acid is produced on an industrial scale by mycologically fermenting crude sugar stocks like molasses using Aspergillus niger strains. The citrate salts are created using the same fermentation method; they are simply crystallized when the proper alkaline solutions are present. For instance, crystallizing citric acid with sodium hydroxide results in the production of sodium citrate.

What does SODIUM CITRATE do in a formulation?

Buffering
Chelating
Preservative

Safety profile

The Cosmetic Ingredient Review (CIR) Expert Panel has reviewed scientific literature and data on the safety of citric acid and its esters and salts, like sodium citrate. Their findings showed that citric acid, its esters, and salts did not irritate the eyes or cause skin irritation or allergic skin reactions at concentrations used in cosmetics and skincare products. In light of the available scientific evidence, the Expert Panel came to the conclusion that citric acid, its esters, and salts were safe for use in cosmetics and personal care products under the circumstances at hand.

SODIUM CITRATE Alternatives

SODIUM POLYASPARTATE, SODIUM PHYTATE, SORBIC ACID, BENZOIC ACID

Technical profile

Property	Values
Melting Point	>300°C
pH	~8.0
Solubility	Soluble in water

4

Commercial Selection : Grades containing solely SODIUM CITRATE

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Citric acid trisodium salt

Trisodium Citrate Dihydrate (Citribel)

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Sodium Citrate Anhydrous

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FORMULATIONS with SODIUM CITRATE

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Hair Care: Urban Detox & Perfect Volume Shampoo by Lipoid Kosmetik

This Urban Detox & Perfect Volume Shampoo is a mild, yellow pearly shampoo with excellent cleansing properties. It contains mild surfactants, and is free of SLS/SLES, sulfates, silicones, and PEGs. It is designed to protect hair & scalp from everyday stressors and pollutants that we encounter in urban environments. It provides smoothness, improved hair manageability, and fortified & detoxed scalp skin. It features: Water Lily Pro: which is a powerful, 100%-natural ingredient for pollution protective, taming, defining and volume optimizing hair care applications. Water lily roots are exceptional underwater factories of phytochemicals such as saponins, flavonoids, and tannins, which are all functional additives for hair care products. HerbaShield® URB: which is a natural solution to pollution as it counteracts pollution-induced skin damage and aging. It unites extracts from watercress, nettle, and horsetail, as well as natural phospholipids. It helps to detox the scalp and contribute to healthier hair. A formulation by Lipoid Kosmetik.

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503 Kb

Skin Care: Blue Light Power Mask by ADEKA

This Blue Light Power Mask is a Cosmos approved, soothing, hydrating and protective face cream. It is an O/W emulsion with a unique combination of active ingredients chosen for their strong anti-inflammatory and anti-irritant properties. It features: MAJIME BIO GREEN TEA/GINGER, RETINATUREL™ & HALOCARE: which deeply hydrate, plump and rejuvenate the skin, helping to smooth out wrinkles and fine lines. PECTIN HE: which gives a powder touch and increases viscosity. A formulation by ADEKA.

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349 Kb

Skin Care: Bouncy Jelly Mist by ADEKA

This Bouncy Jelly Mist helps defend the complexion and leaves the skin feeling fresher, looking hydrated and positively luminous. It is 95% natural and is suitable for all skin types, including sensitive skin. It features: RETINAL O5: which helps protect from pollution and the effects of blue light. HALORUBIN™, Retinal and ADEKA NOL TPE-2424: which help to maintain skin moisturize. A formulation by ADEKA.

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167 Kb

Skin Care: SHIFT IT! by ADEKA

This SHIFT IT light gel cream transforms to lotion, making skin feel soft, supple, and moisturized. It is a thixotropic gel lotion with emulsifier-free O/W system. The jelly cream starts out as a white cream that changes color as blended onto the skin to give you a touch of make-up. The cream blends in perfectly to match the skin tone. In addition, the skin looks radiant due to synthetic mica-based pigments. The system is stabilized with behenyl alcohol. It features: ADEKA NOL GT-930: which is a multifunctional thickener, emulsion stabilizer, pigment dispersant and suspending agent. A formulation by ADEKA.

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Skin Care: Crystalline Hand Gel Care by ADEKA

This Crystalline Hand Gel Care is perfect to achieve a smoother, silky, and moisturized skin without leaving a greasy sensation. It's high moisturizing effect retains an optimal level of water in the skin, acting against environmental effects such as cold, heat or wind. It features: MAJIME BIO COCOS (Cosmos certified) in combination with HALOCARE and the new ingredient RETINATUREL™ PURE in powder form: which have anti-aging properties that increase skin elasticity and stimulate collagen production. PECTIN HE: which acts as thickener and can make transparent formulations. A formulation by ADEKA.

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