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EP-4011360-B1 - COSMETIC COMPLEX AND COMPOSITION FOR MOISTURIZING SKIN AND THEIR USE

EP4011360B1EP 4011360 B1EP4011360 B1EP 4011360B1EP-4011360-B1

Inventors

  • DO NASCIMENTO, Selma
  • ZIMBARDI, Daniela
  • DE SOUZA FERREIRA GARCIA, Cinthia Fernanda
  • GREGÓRIO PINTO, Nicole
  • ARRUDA COSTA, Andrea
  • PEREIRA SANDOLIN, Talita
  • ARANDAS MONTEIRO E SILVA, Silas
  • DE MIRANDA CHAVES VASQUEZ PINTO, LUCIANA
  • BRITO SILVA, Laís
  • SAVIETTO, Joice
  • ANDRADE ARCURI, Helen
  • BELTRAME REIGADA, Juliana

Dates

Publication Date
20260513
Application Date
20190806

Claims (6)

  1. A cosmetic composition characterized in that it comprises a COSMETIC SKIN HYDRATION COMPLEX, characterized by comprising the combination of 0.5% cocoa butter (Theobroma cacao), 0.5% trehalose and 0.5% linseed oil (Linum usitatissimum), based on the total weight of the final cosmetic composition
  2. NON-THERAPEUTIC USE of the cosmetic composition as defined in claim 1, for skin hydration.
  3. The NON-THERAPEUTIC USE, according to claim 2, for maintenance of the skin microbiota.
  4. A COSMETIC COMPOSITION, as defined in claim 1, together with cosmetically acceptable excipients.
  5. The COMPOSITION, according to claim 4, characterized in that it is a body moisturizer.
  6. A METHOD FOR MOISTURIZING THE SKIN, characterized in that it comprises applying to dry skin an effective amount of the cosmetic composition as defined in claim 1, or the cosmetic composition as defined in claim 4.

Description

FIELD OF THE INVENTION The present invention relates to a cosmetic complex that provides simultaneous skin hydration benefits, as well as a cosmetic composition. Said complex comprises the combination of cocoa butter (Theobroma cacao), trehalose and linseed oil (Linum usitatissimum). The invention further relates to a moisturizing cosmetic composition (cosmetic product) comprising the complex disclosed herein and a method for moisturizing the skin. BACKGROUND OF THE INVENTION Hydration is essential for a restored skin barrier. The skin barrier plays a very important role in the body, it comprises cells from the outermost skin layer (horny layer) and substances that bind these cells, such as ceramides, cholesterol, free fatty acids and fats. As suggested by its own name, it is the body's defense mechanism that acts as a kind of protective layer, preventing external agents from penetrating the skin. Accordingly, this layer retains several harmful substances to which the skin is exposed on a daily basis. When this occurs, in addition to being weakened, the skin has its hydration potential reduced, acquiring a dry appearance and causing a feeling of discomfort and irritation. Many emollient and humectant ingredients are already known and used in skin hydration compositions. Among them are vegetable oils and butters, such as almond oil, sunflower oil, grape seed oil, linseed oil, castor oil, shea butter, cocoa butter, cupuagu butter, among many others, which in combination with other cosmetic ingredients and even active ingredients form a moisturizing product. In addition to oils and butters, other ingredients of natural or synthetic origin can also be used in hydration products, including saccharides, disaccharides such as trehalose and polysaccharides. Trehalose is a non-reducing disaccharide consisting of two glucose units which, together with glycogen, are considered energy reserve substances for yeast. Each of the ingredients that comprise the complex proposed herein has already been used in skin moisturizing cosmetic compositions. However, said ingredients are always associated with other active ingredients that are not present in the composition of the present invention. Furthermore, nothing has been described so far about the development of a complex capable of offering a mechanism different from those usually known for hydration (occlusion or wetting), the so-called active hydration. For example, patent US4386067 to Expanscience AS, published in 1983, and GB2485483A, published in 2012, disclose the use of linseed oil or cocoa butter in cosmetic compositions for dry skin. Likewise, as an example, RO97280 and WO14027163 can be cited, which disclose the use of cocoa butter and trehalose as moisturizing components in skin compositions. Said compositions include ingredients that are not present in the composition of the present invention. Patent document WO17055943 to BAKEL SRL, despite citing the ingredients in the context of skin care compositions, does not contemplate the possibility of using the components that form the hydration complex of the present invention in combination in a single composition. Furthermore, the compositions claimed herein achieve qualitative constitutions distinct from those described in this prior-art reference. EP 3995128 concerns a process for obtaining bioactive ingredients, the use of a specific extraction process and new bioactive ingredients from renewable sources, particularly from Amazonia, which can be used in the preparation of cosmetic compositions for treating the skin and hair and/or scalp. The challenge of obtaining new hydration compositions that provide simultaneous benefits in the treatment of the skin still exists. So far, no skin hydration composition has been disclosed that comprises the complex formed by cocoa butter (Theobroma cacao), trehalose and linseed oil (Linum usitatissimum), for use on dry skin, providing the surprising benefit of active hydration, together with other associated benefits. BRIEF DESCRIPTION OF THE FIGURES Figure 1 illustrates the percentage of increase in skin hydration, n = 27 for Group A, wherein the assessment region was the legs.Figure 2 illustrates the percentage of increase in skin hydration, n = 27 for Group B, wherein the assessment region was the legs.Figure 3 shows results relative to S.epidermidis viability.Figure 4 shows results relative to S. aureus viability. DESCRIPTION OF THE INVENTION The present invention is aimed at the technological field of active hydration. Seeking to overcome the obstacles of the state of the art, the applicant developed a moisturizing composition that provides simultaneous benefits in the treatment of the skin. In the context of the present invention, simultaneous benefits are understood as cosmetic effects of care, treatment and protection that occur simultaneously and unexpectedly. These benefits are: skin hydration, improvement of skin elasticity/firmness, reduction of clinical dryness, skin