Cosmetic lip care composition with plant-based isoflavones to improve the appearance of the lips.
A cosmetic lip care composition with plant-based isoflavones and a compatible carrier base addresses the limitations of existing products by enhancing lip suppleness and optical contour, achieving a comfortable and lasting improvement in smoothness and moisture retention.
Patent Information
- Application Number
- DE202026000635
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2026-02-06
- Publication Date
- 2026-04-30
- Estimated Expiration
- 2036-02-29
AI Technical Summary
Existing lip care products primarily focus on temporary effects such as occlusion, moisturization, or short-term plumping, failing to address lasting improvements in lip smoothness, moisture retention, and visible lip contour, often causing irritation.
A cosmetic lip care composition incorporating plant-based isoflavones and a compatible carrier base, which can be anhydrous or aqueous, to provide sustained improvements in lip suppleness, smoothness, and optical volume, without pharmaceutical claims, using components like genistein, daidzein, and glycitein in a stable formulation.
The composition enhances lip appearance by improving suppleness, smoothness, and optical contour, providing a comfortable and lasting effect without irritation, through even distribution and retention of isoflavones.
Abstract
Description
Technical field
[0001] The invention relates to cosmetic compositions for lip care, in particular in the form of a lip care stick, lip balm, lip oil, lip serum, lip gloss, or a tinted care product (hybrid of care and color). The compositions contain plant isoflavones or isoflavone-containing plant complexes and are intended to improve the appearance of the lips (e.g., smoothness, moisture, suppleness, visible fullness, and contour). State of the art
[0002] Popular lip care products primarily focus on occlusion (waxes / oils), moisturizing (e.g., polyols), film formation, or short-term plumping effects (e.g., irritating warming components). Many products only provide temporary shine or a subjective feeling of care, while fine lines caused by dryness, roughness, loss of contour, and the appearance of "thin" lips are often not addressed in a lasting way. Task
[0003] The object of the invention is to provide a cosmetic lip care composition that enables a perceptible and repeatable improvement in the appearance of the lips, in particular by supporting suppleness, smoothness and moisture retention as well as by optically improving the lip contour and the impression of volume - without making a pharmaceutical therapeutic claim. Solution
[0004] The problem is solved by a cosmetic lip care composition comprising (i) at least one plant-based isoflavone component and (ii) a lip-compatible carrier base that stabilizes the isoflavone component and enables sufficient distribution and residence time on the lip surface.
[0005] The isoflavone component can be present as a pure substance, a standardized extract, or a complex of isoflavones. Examples of isoflavones include genistein, daidzein, glycitein, and their cosmetically compatible derivatives. Suitable plant sources of isoflavones include legumes, such as soy (Glycine max), and other isoflavone-containing plant extracts. The carrier base can be anhydrous (water-free) or aqueous. Preferred embodiments • Isoflavone component: 0.001-5 wt.%, preferably 0.01-1 wt.% based on the total composition; as standardized extracts, preferably dosed so that the total isoflavone content is within the stated range. • Carrier base (anhydrous): Mixtures of cosmetic oils / esters (e.g., vegetable oils, triglycerides, isopropyl myristate, C12-C15 alkyl benzoate), waxes (e.g., candelilla, camauba, beeswax, synthetic waxes) and / or butters (e.g., shea butter, cocoa butter) to adjust lubricity and adhesion. • Carrier base (aqueous): Emulsions or hydrogels with suitable emulsifiers / structural agents (e.g. lecithins, polyglycerol esters, fatty alcohols, cellulose derivatives) for pleasant, non-sticky application. • Film formation / dwell time: optional 0.1-10 wt% film-forming polymers (e.g. polyisobutene, VP / hexadecene copolymer, acrylate copolymers, natural film formers) to reduce abrasion and stabilize the optical effect. • Moisturizing components: optional polyols (e.g. glycerin, propylene glycol, butylene glycol) or hyaluronic acid / salts (low doses) to improve the feeling of moisture. • Tinted version: optional pigments / colorants in cosmetically typical amounts for a "my-lips-but-better" finish; the care aspect remains paramount. • Antioxidant stabilization: optional antioxidants (e.g., tocopherol) and suitable packaging (e.g., tightly closing stick tube) to reduce oxidation of oils and active ingredients. • Avoid irritating plumping agents: preferably without strongly irritating plumping substances to achieve a comfortable feel and high tolerability. Application
[0006] The formula is applied evenly to the lips once or several times a day as needed. In a preferred embodiment, it is applied as a thin, even film, resulting in a well-groomed appearance, a smoothing of dryness lines, and improved comfort (less tightness). Examples of implementation (non-limiting) Example 1 - Lip balm (anhydrous, colorless): Oil / wax base (plant oils / emollients, waxes, butters), 0.05 wt% isoflavone complex (standardized), tocopherol as an antioxidant. Result: smooth application, visibly smoother lips. Example 2 - Tinted Care Stick: as in Example 1, plus low-dose pigments for a natural nude-rose tone. Result: Care + subtle color, even lip appearance. Example 3 - Lip serum (water-based): light emulsion base, humectant, 0.1% w / w • isoflavone-containing plant extract (standardized to total isoflavones), film-forming component for longer-lasting adhesion. Result: less dryness, smoother appearance. Advantages • Improvement of lip appearance (smoothness, suppleness, optical contour). • Pleasant, not necessarily irritating feel (optionally without “burning”). • Flexible application forms (stick, balm, serum, gloss, tinted hybrid). • Technical adaptability of the base (anhydrite or water-based) for stabilization and adhesion. Note on interpretation
[0007] The aforementioned areas, examples, and embodiments serve for illustrative purposes and do not limit the scope of protection. The scope of protection is defined by the claims. Features of individual embodiments may be combined.
Claims
[1] Cosmetic lip care composition, to improve the appearance of the lips, characterized by that it comprises at least one plant-based isoflavone component and a cosmetically compatible carrier base, the composition being intended for topical application on the lips. [2] Lip care composition 'according to claim 1, characterized by that the isoflavone component includes genistein, daidzein, glycitein and / or cosmetically compatible derivatives thereof. [3] Lip care composition according to claim 1 or 2, characterized by that the isoflavone component is present as a standardized plant extract, especially from soy (Glycine max). [4] Lip care composition according to any one of the preceding claims, characterized by that the carrier base is formed as an anhydric composition or as an aqueous emulsion. [5] Lip care composition according to any one of the preceding claims, characterized bythat it is in the form of a lip care stick, lip balm, lip serum, lip gloss or a tinted care product. [6] Lip care composition according to any one of the preceding claims, characterized by , that the isoflavone component is present in an amount of 0.001 to 5% by weight based on the total composition.