Liposine Glyglu/R is a modern foaming surfactant with innovative and unique characteristics: it is in fact of completely natural origin (COSMOS certified) and at the same time highly foaming and foam stabilizing.
These characteristics make it possible to use it for the formulation of innovative, modern cosmetics that meet the requirements of ecological and skin-friendly cosmetics without sacrificing performance in terms of foaming and cleansing as it often happens with natural products.
Liposine Glyglu/R has been synthesized starting from a particular combination of amino acids already present in nature, those of rice protein, and condensing them with coconut fatty acids. The interaction of cocoylglycine with cocoylglutamate and the other amino acids present in the formula, forms a lipoaminoacidic complex capable of foaming, cleansing abundantly and replacing the primary synthetic surfactants.
The result has allowed to obtain a product that can be used as primary surfactant in all cosmetic formulations allowing to maintain the levels of foaming equal to the most famous SLES: the type of foam obtained is extraordinary to the touch and is creamy, fine and stable and is able to gently cleanse while respecting the skin.
Liposine Glyglu/R is configured as a liquid without viscosity easily workable, compatible with the common substances used in cosmetics. It is colorless and odorless, and therefore easy to use.
THE MILDNESS OF LIPOSINE GLYGLU/R
In order to measure the gentleness of the surfactant, the product was subjected to an NRU Test with the actual purpose of evaluating the potential for skin/ocular irritation through a cytotoxicity assay on keratinocytes in vitro.
Through the NRU test (or cytotoxicity assay), the damage caused by the test substance to the cell membranes of keratinocytes can be measured. Based on the cytotoxicity of the substance, the skin/ocular irritation potential of the substance can be determined with good approximation. This correlation has been validated by numerous tests in the laboratory and by concordance studies with experimental data obtained in vivo with the same substance.
In order to have reference values, two other surfactants widely used on the market today, such as SODIUM LAURYL ETERE SULFATE and SODIUM COCETH SULFATE, were subjected to the same test.
From the results (which can be fully consulted after registering below) it is evident how products formulated with only 10% SLES or SODIUM COCETH SULFATE are strongly irritant.
On the other hand, a product formulated with LIPOSINE GLYLGU/R base with an IC 50 value equal to 3,2 is well outside the limit of Slightly IRRITANT (1,5) and therefore absolutely NOT IRRITANT.
Starting from concentrations of 0.333 mg/ml, in fact, LIPOSINE GLYLGU/R shows a percentage of inhibition less than half that of SODIUM LAURYL ETHER SULFATE and SODIUM COCETH SULFATE, while starting from concentrations of 0.111 mg/ml, no inhibition is measurable when for the other two surfactants the inhibition is still almost total.
In conclusion the tests demonstrate the gentleness and the skin/eye friendliness of the surfactant.
THE FOAM OF LIPOSINE GLYGLU/R
Parallel to the dermoaffinity tests, LIPOSINE GLYGLU/R was subjected to tests aimed at verifying the foaming power since it is however necessary that the surfactant correctly and abundantly performs its main function, that is to cleanse.
In order to verify the foaming power of surfactants the products were subjected to a modified ROSS-MILES, where 100 ml of the substance to be examined are poured from a height of 70 cm above the surface of the same solution and then the volume of foam formed is measured, in the immediate time (t0), at a distance of 1 minute (t1) and at 3 minutes (t3).
As can be seen from the results, which can be consulted by registering below, the foaming performance of LIPOSINE GLYLGU/R is almost equal to SLES (known on the market as practically the surfactant with the greatest foaming power) at t0 and even higher at t1 and t3.
In other words, the foam of LIPOSINE GLYLGU/R takes much longer to break down where, in the case of a shower gel for example, this means that the foam remains in the bath for much longer.