Laboratoires Expanscience

Laboratoire Expanscience

Laboratories Expanscience

Caroline Baudouin

Philippe Msika

Stephanie Bredif

Alex Saunois

Sophie Leclere-Bienfait

Sebastien Garnier

Stéphanie Bredif

Jacques Legrand

Sébastien Garnier

Franck Menu

Dalale Naaimi

Sebastien Debrock

Nadège Lachmann

Gaelle Bellemere

Marisa Meloni

Gaetan Boyer

Gaëlle Bellemere

Gaëtan Boyer

Sophie Leclere- Bienfait

Stéphanie BRÉDIF

The invention relates to an extract of aerial parts of Maca rich in polyphenols, and also to a composition comprising such an extract and, where appropriate, a suitable excipient. The invention also relates to a process for extracting an extract of aerial parts of Maca rich in polyphenols, and also to the extract that can be obtained by means of said process. The invention also relates to such a composition or such an extract for use thereof in preventing or treating disorders or pathological conditions of the skin, the mucous membranes or the superficial body growths and/or for use thereof in preventing and/or treating vascular disorders. Finally, the invention relates to a cosmetic care process for the skin, the superficial body growths or the mucous membranes, with a view to improving the condition thereof or the appearance thereof, which comprises the administration of such a composition or of such an extract.

Extract of aerial parts of Maca rich in polyphenols and composition comprising same

The present invention relates to models of reconstructed sensitive skin reproducing the features of sensitive skin, as well as to processes for obtaining such models. The present invention further relates to in vitro processes for testing formulations or active ingredients for the prevention or treatment of sensitive skin.

Models of reconstructed sensitive skin

The invention relates to biomarkers in children's skin, in particular in the skin of infants, the expression of which changes when the skin is dry. Such markers are particularly advantageous in that they allow the skin's response to dehydration to be monitored. The inventors have developed methods for evaluating the in vitro efficacy of formulations in preventing the effects of dehydration on children's skin, using a skin model specifically capable of reproducing the characteristics of children's skin.

Method for evaluating the effects of dehydration on children's skin

The invention relates to biomarkers in children's skin, in particular in the skin of infants, the expression of which changes when the skin is affected by atopic dermatitis. Such markers are particularly advantageous in that they allow the skin's response to atopic dermatitis to be monitored. The inventors have developed methods for evaluating the in vitro efficacy of formulations in preventing the effects of atopic dermatitis on a child's skin, using a skin model specifically capable of reproducing the characteristics of children's skin.

Juvenile atopic dermatitis models

The invention relates to an avocado extract rich in polyphenols, containing at least 10% by weight of polyphenols, expressed in gallic acid equivalent relative to the dry extract obtained, wherein said polyphenols contain procyanidins, cafeic acid and cafeic acid derivatives, typically in a proportion of at least 70% by weight, expressed in gallic acid equivalent relative to the total polyphenol content by weight. The invention also relates to a composition comprising an extract according to the invention as active agent and a suitable excipient. The invention also relates to such a composition or such an extract for use thereof in preventing or treating disorders or pathological conditions of the skin, the mucous membranes or the superficial body growths. Finally, the invention relates to a cosmetic care process for the skin, the superficial body growths or the mucous membranes, with a view to improving the condition thereof or the appearance thereof, which consists in administering such a composition or such an extract.

Avocado flesh and/or skin extract rich in polyphenols and cosmetic, dermatological and nutraceutical compositions comprising same

The invention relates to biomarkers of the skin of children and, in particular, that of infants, having altered expression in the presence of urine. Such markers are particularly advantageous as they allow the skin's response to urine to be monitored. The inventors have developed methods for evaluating the efficacy in vitro of formulations in preventing the harmful effects of urine on a child's skin, using a skin model specifically capable of reproducing the characteristics of children's skin.

Method for evaluating the harmful effects of urine on children's skin

The present invention relates to the use of a lupin peptide extract to prevent loss of skin firmness or to increase the firmness of skin. Advantageously, the lupin peptide extract can prevent the appearance of cellulite and/or reduce skin cellulite.

Lupin peptide extracts and skin firmness

A method for determining whether the skin surface of a subject is mature/immature in its organization/function, by taking a skin sample and determining the corneodesmosome distribution within theof the sample by an immunoelectron microscopy method.

Corneodesomosomes and barrier function maturation

A skin model comprises keratinocytes capable of overexpressing filaggrin. A method for evaluating the in vitro activity of a formulation or of at least one active agent on the healing of nipple skin and/or on the reduction of nipple skin inflammation, by bringing said active agent or said formulation into contact with a skin model comprising keratinocytes overexpressing filaggrin and also comprising a lesion, and measuring the level of production of at least one biological marker chosen from lactate dehydrogenase (LDH), TNF&#x3b1;, filaggrin, TGF&#x3b2;1 and &#x3b2;1 integrin.

Reconstituted nipple skin model

The invention relates to a method for evaluating the effectiveness of an active ingredient selected from C7 avocado sugars, also called avocado perseose, for preventing or treating a deficiency of the skin barrier, said method comprising the determination of the level of expression and/or activation of at least one biological marker, where said biological marker is selected from epidermal maturation markers, lipid barrier markers, hydric regulation markers andregulation markers.

Use of biomarkers for evaluating the effectiveness of active ingredients

The present invention relates to the use of a peptide and glycoside extract offruit as a cutaneous neurosensory agent, for improving the response of the cutaneous neurosensory system, in particular for: &#x2014;improving cutaneous innervation in the basal state, &#x2014;combatting age-related loss of cutaneous innervation in the basal state, advantageously for preventing loss of the cutaneous sensitivity and/or combatting thinning of the epidermis, and/or &#x2014;improving cutaneous perception of the environment, more particularly for combatting burns, extreme cold and/or pain.

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The invention concerns a use of C7 sugars and derivatives of formula (I), called avocado perseose, which have, inter alia, a protective activity to epidermal skin cells. These C7 sugars and derivatives are capable of maintaining the expression of markers of adult stem cells, in particular basal stem cells. Avocado perseose can also be used for preventing the deleterious effects of environmental damage. Avocado perseose has a beneficial effect on the conservation of the potential of epidermal stem cells and thus helps maintain skin homeostasis.

Use of a composition comprising avocado perseose in the protection of epidermal stem cells

The invention relates to in vitro methods for testing formulations or active ingredients for preventing the harmful effects of UV on children's skin, in particular children aged three or less. The inventors have developed methods for evaluating the in vitro efficacy of formulations in preventing the harmful effects of UV on the skin of children aged three or less, using a skin model specifically capable of reproducing the characteristics of the skin of children of this age.

Method for evaluating the harmful effects of UV on children's skin

The present invention relates to a composition including at least one C7 sugar, or derivative from esterification of said sugar, and a pharmaceutically acceptable carrier for treating alopecia. The present invention also relates to a method for cosmetically treating hair and nails, said method being intended to stimulate the growth thereof and/or slow the loss thereof. According to said method, a cosmetic composition including at least one C7 sugar, or derivative from esterification of said sugar, is administered. The present invention finally relates to a method for cosmetic care of hair and/or eyelashes and/or nails.

Composition containing at least one C7 sugar for alopecia treatment, cosmetic treatment of hair and nails, and care of hair, eyelashes or nails

The present invention relates to the use of at least one vegetable oil refining industry by-product to obtain a purified total unsaponifiable of vegetable oil cleared of the impurities initially present in the said by-product, advantageously cleared of sapid and odorous compounds and/or chemical compounds resulting from the deterioration and the degradation of vegetable oils. The invention further relates to a method for obtaining a purified total unsaponifiable of vegetable oil from at least one vegetable oil refining industry by-product. The invention further relates to a purified total unsaponifiable of vegetable oil able to be obtained by this method, as well as compositions containing such an unsaponifiable. The invention further relates to such unsaponifiables or such compositions for the use thereof as a drug, medical device, dermatological agent, cosmetic agent or nutraceutical, in humans or animals.

Growing community of inventors

Rambouillet, France

Caroline Baudouin