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Cosmetics Ingredients

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Functional sustainable performance

Functional sustainable performance

LAUROYL LYSINE

CAS Number	52315-75-0
Chem/IUPAC Name:	(2S)-2-amino-6-(dodecanoylamino)hexanoic acid
EINECS/ELINCS No:	257-843-4
COSING REF No:	34940

LAUROYL LYSINE

Lauroyl Lysine is the amide produced by the reaction of lysine and lauroyl chloride. It has a softening and conditioning effect on the skin and hair, giving them a silky feel. It can be found in a variety of cosmetics, such as lipsticks, eye shadows, and sunscreens. In the Personal Care Products Council’s use concentration survey, Lauroyl Lysine had a wide maximum use concentration range of 0.001% to 45% with the 45% reported in lipsticks.

Who supplies LAUROYL LYSINE ?

Daito Kasei Kogyo

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Protameen Chemicals

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What is LAUROYL LYSINE used for?

Lauroyl Lysine works as a skin-softening and hair-conditioning agent. By aiding in the gelling of the solvents and remaining stable under high heat, it also improves the texture of a product. Sunscreens, eye makeup, lipsticks, and hair care serums are just a few examples of the numerous beauty products that contain lauroyl lysine.

Due to its excellent skin adherence, it is frequently used in makeup to help ensure longer-lasting wear. Lauroyl Lysine helps skincare products adhere and last longer while also enhancing the texture of cosmetic products and performing well in high heat environments. It feels soft and silky against the skin. It is also used to provide support for the color of cosmetics.

Origin

Lauroyl lysine is most frequently produced through a process known as the Schotten-Baumann reaction, in which an amino acid's free amine is acylated with an acyl chloride in this instance, lysine is reacted with lauroyl chloride.

What does LAUROYL LYSINE do in a formulation?

Hair conditioning
Skin conditioning
Viscosity controlling

Safety profile

The Cosmetic Ingredient Review (CIR) Expert Panel conducted a safety assessment of amino acid alkyl amides including lauroyl lysine, and concluded it is safe in the reported cosmetic uses in concentrations up to 45%. No published reproductive and development toxicity, carcinogenicity, nor relevant clinical use studies on amino acid alkyl amides were discovered and no unpublished data were submitted.

LAUROYL LYSINE Alternatives

STEAROYL LEUCINE, STEAROYL GLUTAMIC ACID, ALOE BARBADENSIS LEAF EXTRACT

Technical profile

Property	Values
Boiling Point	527-528°C
Melting Point	230-233°C
Solubility	Soluble in water

4

Commercial Selection : Grades containing solely LAUROYL LYSINE

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FORMULATIONS with LAUROYL LYSINE

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Decorative Cosmetics: Bouncy Blush by Brenntag Specialties

This Bouncy Blush provides cream to powder texture and a natural blush. You can use the same blush for both day and night looks. It features: MIRASIL™ CETYL DM: is an emollient, thickener & stabilizer for cosmetic emulsions and shine booster for color cosmetics. MIRASIL™ CAPRYLYL TSO: is an easily volatile, emollient and surface active in many organic media. MIRASIL™ BALANCE: is an excellent emulsifier and co-emulsifier for W/O emulsion with non-heavy feeling. MIRASIL™ DM 5: which offers a soft feel and protecting effect in skin care. A formulation by Brenntag Specialties.

Skin Care: Zemea® Light Moisturizer by DuPont Tate and Lyle

This Zemea® Light Moisturizer features Zemea® Propanediol, a multifunctional preservative-boosting humectant and solvent. A formulation by DuPont Tate and Lyle.

Sun Care: Solar Powder by Total Special Fluids

Breathe at last! Where most solar powders come in a compact form, this one changes the deal - it is loose and feels so much lighter and natural. Designed to be super soft and transparent to sublimate the tan, it holds well and lightly on the skin and resists wear but without causing any dryness. This formulation wonder - without any silicone - is made possible by Gemseal® 40 - which also lets you get the right level of pigment wettability. More, it adds a very pleasant unctuosity, improves hold and enhances texture transparency after application. A formulation by Total Special Fluids.

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Decorative Cosmetics: Luxurious Volume and Color Mascara by Koster Keunen

This Luxurious Volume and Color Mascara formulation features Kester Wax K-SWR which is not only a shellac wax replacement but the primary component in this mascara due to its outstanding performance as a film former, structurant, fixative, gloss agent, and pigment disperser. Kester Wax CT #592 contributes here to the formula stability, creaminess and spreadability. A formulation by Koster Keunen.

Decorative Cosmetics: Natural Second-Skin Foundation by Gattefosse

Natural Second-Skin Foundation contains Emulium® Mellifera MB which forms a luxurious glossy lotion that absorbs easily without any trace of stickiness. The film left on the skin is particularly thin and presents no linting effect. It is therefore idealy suited for a light foundation that covers and fits the complexion perfectly. This covering beige foundation is all natural and provides a soft feel upon application. A formulation by Gattefosse.

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