MYRISTOYL TETRAPEPTIDE-13 D-LYSINE AMIDE

Substance information

The name component "myristoyl" means that the ingredient contains, as fatty acid component, amongst others, myristic acid (tetradecanoic acid) (mostly introduced via an acylation reaction). Peptides are linking products of some (oligopeptides, eg 6 = hexapeptide) or many amino acids (then referred to as polypeptides or proteins). Ingredient on the basis of the amino acid lysine (2,6-diaminohexanoic acid). Amides are generally conversion products of carbonic acids (carboxylic acids, mostly fatty acids) or other acids with nitrogen compounds (ammonia or alkyl and alkanol amines, amino acids etc). Examples: "stearamides" are amides of the stearic acid, "cocamides" are amides of coconut fatty acids.

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Function(s) of this ingredient in cosmetic products

ANTI-SEBUM

Inhibits sebum production

ANTIMICROBIAL

Helps control the growth of micro-organisms (eg bacteria and fungi)

EYELASH CONDITIONING

Conditioning and enhancing the appearance of eyelashes. Improving the gloss or sheen of eyelashes, coating the eyelash hair to increase the appearance of its diameter and length, or helping with the separation of the eyelash hair.

SKIN CONDITIONING - MISCELLANEOUS

Maintains the skin in good condition

SURFACTANT - EMULSIFYING

Allows the formation of finely dispersed mixtures of oil and water (emulsions)

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Origin

synthetic (Information may exclusively reflect the status at initial entry of this ingredient into the relevant INCI dictionary; technological progress may have added new manufacturing options based on substances of different origin)

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Background information on use in cosmetics

Endogenous protein building blocks, so-called peptides, play a central role in the metabolism of the body. They signal to the body to activate the endogenous repair mechanism of the skin. This finding is used by cosmetics and peptides are frequently used in anti-ageing products (INCI: as word component peptides). Peptides are also used in haircare, eg in shampoos, conditioners and cures. They can penetrate into the inner hair structure (cortex) and strengthen the hair. In face care special active ingredient complexes are, for instance, used, in which peptides can be combined with different vitamins such as Vitamin B3, Provitamin B5 and Vitamin E as well as other care substances. These active ingredient complexes stimulate the slower regeneration of the mature skin, strengthen its structure and hence contribute towards visibly reducing wrinkles. Another peptide group is likewise used for the care of mature skin: polycollagen peptides. They consist of different peptides and collagen fragments which take over the behaviour of natural collagen fragments occurring in the skin which play an important role in the natural repair process of the skin. In care products this process is imitated. The result is a mitigation of lines and wrinkles. The complexion and the elasticity of the skin are improved. Emulsifiers are often used in cosmetics as excipients. They allow actually unmixable components like oil and water to be brought in a permanently stable emulsion. In this way both aqueous and oily care and active ingredients can be used in one and the same product in cosmetics. Emulsifiers are able to do that since their molecules consist of a lipophilic and a hydrophilic part. In this way they can reduce the interfacial tension which actually exists between two incompatible substances like fat and water. Emulsifiers are, more particularly, used for creams, lotions and cleansing agents. At present emulsifiers are, however, more than only excipients which keep an emulsion stable. Fatty acid esters on the basis of sugar, lecithin or glycerin monodistearate contribute, for instance, to improving the moisture balance of the skin and are, therefore, also considered as cosmetic active ingredients.

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Belongs to the following substance groups

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Regulating cosmetics

Cosmetics Ingredients are subject to regulation. Please note, different regulations may apply to cosmetic ingredients outside the EU.