Application of apocynum venetum by-product extract in washing and skin care products

Abstract

This invention discloses the application of Apocynum venetum by-product extract in personal care and skincare products. The personal care and skincare products comprise Apocynum venetum by-product extract and a daily chemical matrix. The Apocynum venetum by-product extract is extracted from industrial by-products generated during the processing of Apocynum venetum. The daily chemical matrix is ​​selected from any one of shampoo matrix, shower gel matrix, lotion matrix, or cream matrix. The Apocynum venetum by-product extract preferably comprises 2%–5% by weight in the finished product and is rich in flavonoids, polyphenols, and polysaccharides—natural active ingredients. This invention significantly reduces raw material production costs. Simultaneously, the extract is stably compatible with various daily chemical matrices such as shampoos, shower gels, facial lotions, and hand and foot repair lotions, endowing the products with multiple effects such as dandruff removal, itching relief, soothing and anti-inflammatory properties, and moisturizing and repairing. This invention is low-cost, has high raw material utilization, strong formula compatibility, and produces gentle, non-irritating products suitable for industrial mass production.

Description

Technical Field

[0001] This invention relates to the field of natural plant extract application technology in daily chemical products, specifically to the application of an extract of Apocynum venetum by-product in washing and skin care products. Background Technology

[0002] As consumers become increasingly concerned about the safety and naturalness of daily chemical products, plant extracts are being used more and more widely in the fields of hair care and skin care. Currently, hair care and skin care products are mainly divided into two categories: those with chemical additives and those with plant extracts. Common hair care products with dandruff-reducing and soothing effects generally contain chemical antibacterial and antipruritic additives, such as zinc pyrithione and clomiphene. Long-term use of such products can easily disrupt the scalp and skin's microecological balance and barrier function, inducing problems such as dryness, sensitivity, redness, and even flaking.

[0003] To address the irritation issues associated with chemical additives, some companies are attempting to incorporate natural plant-based active ingredients into daily chemical products. Apocynum venetum, a traditional Chinese medicinal plant, is rich in flavonoids, polyphenols, and polysaccharides, possessing multiple beneficial properties including antibacterial, anti-inflammatory, and antioxidant effects. However, current daily chemical products on the market with small amounts of Apocynum venetum active ingredients suffer from the following technical defects: 1. High raw material costs: All extractions use mature leaves of Apocynum venetum as the raw material. The yield of Apocynum venetum leaves is limited, and the pre-processing costs such as harvesting, sorting, and drying are high, resulting in high raw material procurement costs and large material consumption. This makes it difficult to achieve low-cost, large-scale production, thus limiting its widespread application.

[0004] Limited application categories: Existing related products are mostly developed for a single category of personal care products, lacking universal application solutions that can be adapted to various product forms such as shampoo, shower gel, facial lotion, and hand and foot cream.

[0005] Therefore, the industry still urgently needs a new type of Apocynum venetum-based daily chemical raw material application technology that can significantly reduce raw material costs, have multiple repair effects, and be widely adaptable to various forms of washing and skin care products. Summary of the Invention

[0006] To overcome the technical shortcomings of existing technologies, such as the strong irritation of chemical additives, the high cost of Apocynum venetum leaf extract, and the limited application categories, this invention provides an application of Apocynum venetum by-product extract in washing and skin care products.

[0007] The specific technical solution of the present invention is as follows: An application of Apocynum venetum by-product extract in a personal care and skincare product. The core technical feature of this application is that the personal care and skincare product comprises Apocynum venetum by-product extract and a daily chemical matrix. The Apocynum venetum by-product specifically refers to by-products generated throughout the entire processing of Apocynum venetum fiber, encompassing industrial by-products such as hemp fibers, hemp flakes, short fibers, fiber fragments, and processing scraps produced during initial field processing, factory refining (hemp core separation), degumming, opening and combing, and impurity removal. The daily chemical matrix is ​​selected from any one of shampoo matrix, shower gel matrix, lotion matrix, or cream matrix.

[0008] This invention significantly improves the overall resource utilization rate of Apocynum venetum by using low-cost industrial by-products of Apocynum venetum to replace expensive Apocynum venetum leaves as raw materials, thereby significantly reducing the cost of raw material procurement and preparation, realizing the resource utilization of solid waste, and laying the foundation for large-scale, low-cost daily chemical production.

[0009] As a further preferred embodiment of the technical solution of the present invention, the mass percentage of the Apocynum venetum by-product extract in the washing and skin care product is 2% to 5%.

[0010] The advantages of this addition range are as follows: below 2%, the concentration of active ingredients is insufficient, failing to fully exert the core effects of dandruff removal, soothing, and moisturizing; above 5%, the extract will cause excessive hydration of the matrix due to the active ingredients, increasing overall fluidity and making the system too thin, easily leading to abnormal defoaming, product stratification, and decreased storage stability. It will also darken the product color and increase production costs. The 2%–5% range maintains system stability and a good sensory texture while ensuring excellent product efficacy, making it suitable for industrial production.

[0011] As a further preferred embodiment of the technical solution of the present invention, the Apocynum venetum by-product extract is a brownish-black viscous extract, which can be prepared by alcohol extraction or water extraction processes to obtain an extract rich in a variety of natural active ingredients such as flavonoids, polyphenols and polysaccharides.

[0012] Flavonoids and polyphenols possess excellent antioxidant, antibacterial, and anti-inflammatory activities, effectively inhibiting pathogenic bacteria such as Malassezia scalp and relieving scalp itching and skin redness. Polysaccharides have excellent moisturizing and film-forming properties, locking in skin moisture and repairing damaged skin barriers. The synergistic combination of these three active ingredients gives the product a complex effect of antibacterial and dandruff-reducing, soothing and anti-inflammatory, long-lasting moisturizing, and dryness-repairing properties.

[0013] As a further preferred embodiment of the technical solution of the present invention, the washing and skin care product is an anti-dandruff and anti-itch shampoo, the daily chemical matrix is ​​a water-based shampoo matrix, and the mass percentage of the Apocynum venetum by-product extract is 3%.

[0014] This formula is suitable for oily and sensitive scalps. Relying on the natural antibacterial activity of flavonoids and polyphenols in the extract, it provides long-lasting oil control and dandruff removal, soothes scalp discomfort, and is gentle and safe without the risk of irritation from chemical antibacterial agents.

[0015] As a further preferred embodiment of the technical solution of the present invention, the washing and skin care product is a hand and foot dry and cracked repair lotion, the daily chemical matrix is ​​a cream matrix, and the mass percentage of the Apocynum venetum by-product extract is 5%.

[0016] For damaged skin such as dry, cracked, peeling, and rough hands and feet, the high-concentration extract can provide stronger nourishing and repairing effects. The polysaccharide components form a breathable and moisturizing protective film, which works synergistically with flavonoids and polyphenols to repair damaged keratin and significantly improve dry and cracked skin.

[0017] The advantages of this invention compared to the prior art are: 1. Significantly reduce production costs: By abandoning the expensive raw material of Apocynum venetum leaves and using industrial waste by-products to prepare active extracts, we can turn waste into treasure. Under the premise of equivalent efficacy, we can greatly reduce the cost of raw materials, which is suitable for large-scale industrial promotion.

[0018] Complex efficacy and high safety: Multiple natural active ingredients work synergistically to provide multiple benefits including dandruff removal, itch relief, soothing and anti-inflammatory effects, moisturizing and repairing. The raw materials are natural and gentle, with no irritating chemical additives, making it suitable for sensitive scalps and all skin types.

[0019] Wide compatibility and strong versatility: It is compatible with a variety of daily chemical bases such as water-based and emulsion-based products, and can be flexibly applied to a variety of products such as shampoo, body wash, facial care, and hand and foot care, without the need for targeted formula modification.

[0020] Industrialization is simple: the extract can be directly added to the existing daily chemical production system, compatible with conventional processes such as stirring, homogenization and emulsification, without the need to modify production equipment, and the threshold for implementation is low. Detailed Implementation

[0021] The Apocynum venetum by-product extract used in this invention can be prepared using two mainstream extraction processes, and the content of active substances differs significantly between the two processes: 1. Alcohol Extraction Process (60% ethanol reflux extraction): The industrial processing by-product of Apocynum venetum is dried and pulverized, then extracted with 60% ethanol solution under reflux. The extract is concentrated under reduced pressure to remove the ethanol, yielding a brownish-red viscous extract (density approximately 1.2 g / mL). Testing revealed that the alcohol extract contained ≥5% total flavonoids, ≥3% total polyphenols, and ≥8% total polysaccharides. 2. Pure water extraction process: High-temperature water extraction and concentration are carried out using water as the extraction solvent to obtain the extract. Due to the lipophilic physicochemical properties of flavonoids, the total flavonoid content of the water-extracted extract is only 0.2%~0.3%. The polyphenol and polysaccharide content is close to that of the alcohol-extracted sample, which can meet the basic soothing and moisturizing needs.

[0022] All percentages in the following examples and comparative examples are by mass percentages, and all examples use alcohol extract as the raw material.

[0023] Example 1: Anti-dandruff and anti-itch shampoo Add 3% by weight of the above-mentioned Apocynum venetum by-product extract to a conventional water-based shampoo base (mainly containing water, surfactant system, thickener, pH adjuster, preservative, etc.). Stir and homogenize at 40℃ for 30 minutes, adjust the pH to 5.5-6.5, and then fill to obtain the finished product.

[0024] This formula effectively inhibits Malassezia on the scalp, improves scalp itching and dandruff, and is gentle enough for oily and sensitive scalps.

[0025] Example 2: Refreshing and Moisturizing Shower Gel Add 2.5% by weight of Apocynum venetum by-product extract to a standard shower gel base (containing water, surfactants, solubilizers, humectants, etc.). Stir and homogenize at room temperature for 20 minutes, allow to stand to defoam, and then fill into bottles.

[0026] This formula effectively inhibits harmful bacteria on the skin's surface, relieves dryness, tightness, and peeling after bathing, and provides both soothing and long-lasting moisturizing effects.

[0027] Example 3: Repairing lotion for dry and cracked hands and feet Add 5% by weight of Apocynum venetum by-product extract to a conventional cream base (containing water, oils, emulsifiers, moisturizers, thickeners, etc.). Dissolve the extract in the aqueous phase, mix it with the oil phase at 70°C, emulsify and homogenize at high speed, and then cool and fill the product.

[0028] High concentrations of active ingredients can deeply nourish damaged keratinocytes, forming a moisturizing protective film, effectively improving dry, cracked, peeling, rough, and itchy hands and feet.

[0029] Comparative Example 1: Commercially available chemical anti-dandruff shampoos without Apocynum venetum extract We selected a commercially available chemical anti-dandruff shampoo with zinc pyrithione as the core anti-dandruff and antibacterial ingredient as a reference sample for conventional chemical hair care products.

[0030] Comparative Example 2: Moisturizing Body Lotion Containing Apocynum Venetum Leaf Extract Following the preparation method of Example 2, the extract of Apocynum venetum by-products was replaced in equal amounts with extract prepared from selected Apocynum venetum leaves, while the remaining processes and formulation parameters were completely identical, in order to compare the cost and efficacy differences of different raw materials.

[0031] Effect comparison test Based on the above embodiments and comparative examples, specific tests were conducted on production costs, antibacterial effects, moisturizing capabilities, and product mildness: 1. Production cost test: Based on the average market price of Apocynum venetum leaves of 50 yuan / kg, the average price of Apocynum venetum by-products of 5 yuan / kg, and the extraction yield of 20%, the raw material cost per 100 kg of finished product is calculated. 2. Antibacterial performance test: The in vitro inhibition loop method was used to test the antibacterial effect of the sample on Malassezia; 3. Moisturizing performance test: The skin moisture enhancement rate was measured after 2 hours through human trials on volunteers; 4. Mildness test: The product's irritation is tested using a human skin patch test.

[0032] Test Result Analysis 1. Significant cost advantage: Under the same process and efficacy conditions, the raw material cost of Apocynum venetum by-product extract is only about 10% of that of Apocynum venetum leaf extract, highlighting the advantages of resource utilization and greatly reducing the cost of industrial production; 2. Excellent efficacy and performance: The antibacterial, moisturizing and repairing properties of the alcohol extract are basically the same as those of traditional Apocynum venetum leaf extract products, and can effectively achieve dandruff removal, soothing, moisturizing and repairing effects; the pure water extract has a lower flavonoid content, making it more suitable for basic moisturizing daily chemical products. 3. Enhanced safety: This invention uses natural plant-based active ingredients, without any chemical additives or irritants. It has been tested on humans and has shown no adverse reactions such as redness or itching. Its gentleness is superior to traditional chemical-based washing and care products.

[0033] The above-described embodiments are merely preferred illustrative examples of the present invention and are not intended to limit the scope of protection of the present invention. Any conventional adaptations and adjustments made to the addition ratio of the extract or the specific categories of daily chemical products based on the core ideas of the present invention, or equivalent technical solutions using equivalent extraction processes or industrial by-products of Apocynum venetum as raw materials to prepare the extract, all fall within the scope of protection of the present invention. The present invention is not limited to the embodiments limited above; any equivalent transformations or simple improvements made based on the principles of the present invention are within the scope of protection of the present invention.

Claims

1. The application of an extract of Apocynum venetum by-product in the preparation of personal care and skincare products, characterized in that, The hair care and skin care product comprises Apocynum venetum by-product extract and a daily chemical matrix; wherein, the Apocynum venetum by-product extract is extracted from the by-products of Apocynum venetum industrial processing, and the daily chemical matrix is ​​selected from any one of shampoo matrix, shower gel matrix, lotion matrix or cream matrix.

2. The application according to claim 1, characterized in that, The Apocynum venetum by-product extract has a mass percentage content of 2% to 5% in the shampoo and skin care product.

3. The application according to claim 1 or 2, characterized in that, The Apocynum venetum by-product extract is a brownish-black viscous extract, rich in various natural active ingredients such as flavonoids, polyphenols, and polysaccharides.

4. The application according to claim 1, characterized in that, The hair care and skin care products mentioned are any one of shampoo, conditioner, shower gel, facial moisturizer, body lotion, or hand and foot repair lotion.

5. The application according to claim 1, characterized in that, The hair care product is an anti-dandruff and anti-itch shampoo, the daily chemical matrix is ​​a water-based shampoo matrix, and the mass percentage of the Apocynum venetum by-product extract is 3%.

6. The application according to claim 1, characterized in that, The aforementioned skin care product is a hand and foot dry and cracked repair lotion, the aforementioned daily chemical base is a cream base, and the aforementioned Apocynum venetum by-product extract has a mass percentage of 5%.