Natural black hair dye with unique synthesis formula and matched oxidant thereof

Abstract

The invention relates to the field of hair dyes, and discloses a natural black hair dye with a unique synthesis formula and a matched oxidant, the natural black hair dye comprises a hair dye and an oxidant which are mixed together for use, the hair dye comprises an emulsifier with water as a solvent, a hair dyeing component, a nourishing component and an auxiliary component, the oxidizing agent comprises an oxidizing component and a stable component, p-phenylenediamine (1-4%) serves as a main color developing agent, p-phenylenediamine and resorcinol (1-2%) form a basic black skeleton, phenyl methyl pyrazolone (0.1-0.5%) is used for adjusting the cold color tone, m-aminophenol (0.1-1.5%) is used for balancing the warm color tone, and finally multi-level melanin deposition is formed in hair cuticles. The dyed black shows a gradual change effect from deep brown to pure black under natural light, and'cyan black 'or'dead black' of a traditional hair dye is avoided.

Description

Technical Field

[0001] This invention relates to the field of hair dyes, specifically to a natural black hair dye with a unique synthetic formula and its matching oxidizing agent. Background Technology

[0002] Oxidative hair dyes are currently the mainstream products on the market. Their principle involves an oxidation reaction between precursors such as p-phenylenediamine and hydrogen peroxide, forming colored macromolecules within the hair cuticle. However, existing technologies for dyeing natural black hair share the following common problems:

[0003] Color performance limitations: Traditional formulas rely on high concentrations of p-phenylenediamine (often exceeding 5%), which can achieve strong coloring, but easily leads to an overly dark and dull black, lacking natural shine, and poor color uniformity for different hair types (such as damaged hair and coarse hair).

[0004] Hair damage issues: The alkaline environment (pH>11) and the oxidizing effect of hydrogen peroxide during the dyeing process can easily damage the hair cuticle structure, leading to moisture loss, protein denaturation, and problems such as dryness and split ends. According to industry research, more than 60% of consumers reported that their hair quality deteriorated significantly after dyeing.

[0005] Risk of scalp irritation: Traditional oxidants are not stable enough and require the addition of high concentrations of stabilizers (such as tetrasodium pyrophosphate). Improper pH adjustment can easily cause scalp burning and itching, which is especially unfriendly to sensitive people. Less than 20% of hair-darkening products on the market are suitable for sensitive skin.

[0006] System stability defects: The emulsion system is prone to stratification, resulting in uneven component distribution and affecting the dyeing effect; the hydrogen peroxide in the oxidant is easily decomposed by metal ion catalysis, the shelf life is usually only 6-12 months, and it must be prepared and used immediately, with low operational error tolerance.

[0007] Special technical requirements for natural black hair dyeing

[0008] Black hair dyeing demands higher standards for pigment purity, color longevity, and naturalness. Existing technologies have room for improvement in the following aspects:

[0009] Pigment synergistic reaction mechanism: It is difficult to achieve a delicate black gradation by relying solely on p-phenylenediamine. It is necessary to combine auxiliary color components (such as resorcinol and aminophenols) to optimize the color tone. However, the ratio of auxiliary color components in existing formulations is unreasonable, which can easily lead to color deviations such as bluish or grayish tones.

[0010] Functional matching of nourishing ingredients: Traditional hair care ingredients (such as panthenol and mineral oil) mostly stay on the surface of the hair and lack natural active ingredients that target the repair of hair cuticles and the protection of the scalp barrier, especially lacking compound solutions of plant extracts with antioxidant and anti-inflammatory effects.

[0011] Balancing emulsification and stabilization: While ensuring the strong oxidizing properties of the oxidant, it is necessary to achieve a balance between low irritation pH (9.0-10.5) and long shelf life through the synergistic effect of emulsifiers and stabilizers. Existing technologies often fail to achieve this balance.

[0012] Defect analysis of existing technologies

[0013] The dyeing ingredients are too simple: Most commercially available hair blackening products contain only p-phenylenediamine (>3%) and resorcinol (<0.5%), lacking fine color-mixing pigments such as phenylmethylpyrazolone and 2,4-diaminophenoxyethanol hydrochloride, resulting in a harsh color, especially under sunlight or artificial light, which easily appears "artificial black".

[0014] Ineffective nourishing ingredients: Traditional formulas contain less than 0.5% vitamin E and avocado oil, and are not combined with plant extracts such as Stephania tetrandra and Eclipta prostrata, so they cannot form a three-dimensional care system of "antioxidant-repair-moisturizing", and have limited protective effect against hair dyeing damage.

[0015] Simplified stabilization system: The oxidant used is only a single chelating agent of disodium EDTA (content <0.1%), without the synergistic chelating effect of hydroxyethyl diphosphate, resulting in insufficient inhibition of metal ions. This leads to the decomposition rate of hydrogen peroxide exceeding 15% after 3 months of storage, affecting the staining efficiency.

[0016] The pH adjustment is crude: relying on ammonia to adjust the pH value to above 11, although it accelerates the opening of hair cuticles, the excessively alkaline environment increases the risk of scalp irritation, and it does not achieve dynamic pH buffering through ingredients such as salicylic acid, resulting in low applicability to sensitive groups. Therefore, we have proposed a natural black hair dye with a unique synthetic formula and its matching oxidant. Summary of the Invention

[0017] In view of the shortcomings of the prior art, the present invention provides a natural black hair dye with a unique synthetic formula and a matching oxidant, which solves the above-mentioned problems.

[0018] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a natural black hair dye with a unique synthetic formula and its matching oxidant, comprising a hair dye and an oxidant used together, wherein the hair dye comprises an emulsifier with water as a solvent, hair dyeing ingredients, nourishing ingredients and auxiliary ingredients, and the oxidant comprises oxidizing ingredients and stabilizing ingredients.

[0019] Preferably, the emulsifier comprises water, cetearyl alcohol, ethanolamine, cetearyl alcohol polyether-25, and propylene glycol, wherein the weight percentages are 100 parts water, 5-15 parts cetearyl alcohol, 5-10 parts ethanolamine, 3-10 parts cetearyl alcohol polyether-25, and 5-10 parts propylene glycol.

[0020] Preferably, the hair dyeing ingredients include p-phenylenediamine, resorcinol, phenylmethylpyrazolone, m-aminophenol, and 2,4-diaminophenoxyethanol hydrochloride, which are present in the following weight percentages: 1-4 parts p-phenylenediamine, 1-2 parts resorcinol, 0.1-0.5 parts phenylmethylpyrazolone, 0.1-1.5 parts m-aminophenol, and 0.1-2 parts 2,4-diaminophenoxyethanol hydrochloride.

[0021] Preferably, the nourishing ingredients include tocopherol (vitamin E), avocado (BUTYROSPERMUM PARKII) fruit oil, avocado (PERSEAGRATISSIMA) oil, Stephania tetrandra (STEPHANIA TETRANDRA) extract, Eclipta prostrata (ECLIPTA PROSTRATA) leaf extract, Panax ginseng (PANAX GINSENG) extract, and Curcuma longa (CURCUMALONGA) root extract, which are present in the following weight percentages: 1-2 parts tocopherol (vitamin E), 1-2 parts avocado (BUTYROSPERMUM PARKII) fruit oil, 1-2 parts avocado (PERSEAGRATISSIMA) oil, 1-2 parts Stephania tetrandra (STEPHANIA TETRANDRA) extract, 1-2 parts Eclipta prostrata (ECLIPTA PROSTRATA) leaf extract, 1-2 parts Panax ginseng (PANAX GINSENG) extract, and 1-2 parts Curcuma longa (CURCUMALONGA) root extract.

[0022] Preferably, the auxiliary ingredients include mineral oil, cetearyltrimethylammonium chloride, glyceryl stearate, sodium sulfite ascorbic acid (vitamin C), panthenol, and fragrance, which are in the following weight percentages: 1-5 parts mineral oil, 2-5 parts cetearyltrimethylammonium chloride, 1-5 parts glyceryl stearate, 1 part sodium sulfite, 1 part ascorbic acid (vitamin C), 0.1-1 part panthenol, and 0.1-2 parts fragrance.

[0023] Preferably, the oxidizing components include water, hydrogen peroxide, propylene glycol, cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate, which are in the following weight percentages: 100 parts water, 1-19 parts hydrogen peroxide, 1-10 parts propylene glycol, 1-10 parts cetearyl alcohol, 1-5 parts cetearyl alcohol polyether-25, and 1-5 parts glyceryl stearate.

[0024] Compared with existing technologies, this invention provides a natural black hair dye with a unique synthetic formula and its matching oxidant, which has the following beneficial effects:

[0025] I. Natural and pure coloring effect

[0026] By using a ternary color-developing component compounding technology, precise control and natural transition of black tones can be achieved:

[0027] Multi-dimensional pigment layering: p-phenylenediamine (1-4%) serves as the main color developer, forming a basic black framework with resorcinol (1-2%). Phenylene methylpyrazolone (0.1-0.5%) is used to adjust cool tones, and m-aminophenol (0.1-1.5%) balances warm tones. Ultimately, multi-level melanin deposition is formed within the hair cuticle, resulting in a gradient effect from dark brown to pure black under natural light after dyeing, avoiding the "bluish-black" or "dead black" of traditional hair dyes.

[0028] Improved hair adaptability: Targeting the penetration characteristics of different hair types (damaged / healthy / coarse), 2,4-diaminophenoxyethanol hydrochloride (0.1-2%) can enhance the binding force between pigment and keratin. Actual tests show that the color uniformity of coarse hair is improved by 40%, and the color durability of damaged hair is extended by 25%, solving the problems of "highlighting" or "fading too quickly" of traditional products.

[0029] II. Multi-functional hair care and protection

[0030] Innovative liposome encapsulation nourishing technology combined with a plant-based active ingredient complex system achieves "simultaneous coloring and conditioning" during the hair dyeing process:

[0031] Hair cuticle repair and moisture retention: Tocopherol (vitamin E, 1-2%), shea butter (1-2%), and avocado oil (1-2%) form a lipid protective layer. After emulsification with cetearyl alcohol polyether-25, they form 50-100nm nanoparticles that can penetrate into the gaps between the hair cuticles, increasing the moisture content of dyed hair by 40% and the closure of the hair cuticles by 60%, significantly improving dryness and frizz (third-party testing shows a 55% reduction in combing resistance).

[0032] Scalp barrier protection: A herbal compound containing 1-2% of Stephania tetrandra extract (anti-inflammatory), Eclipta prostrata leaf extract (antioxidant), red ginseng extract (promotes microcirculation), and turmeric root extract (antibacterial) reaches the scalp surface through the penetration-enhancing effect of propylene glycol. The measured content of IL-6, an inflammatory factor in the scalp, was reduced by 30%. After use, the incidence of scalp redness in sensitive individuals decreased from 45% to 8%, achieving "non-irritating dyeing and conditioning".

[0033] 3. Mild and hypoallergenic scalp-friendly

[0034] A safe hair dyeing environment is created by using a dual-phase pH buffer system and metal ion chelation technology:

[0035] Precise pH control: Ethanolamine (5-10%) in the hair dye stabilizes the pH value at 9.0-10.5, which can reduce excessive swelling and damage of hair cuticles by 40% compared to the pH>11 of traditional products; Salicylic acid (1-5%) in the oxidant not only adjusts the pH to 3.5-4.5 (suitable for the optimal range of hair dyeing reaction), but its natural anti-dandruff ingredients can also inhibit Malassezia activity, reducing the incidence of scalp itching by 60% after use.

[0036] Dual stabilizing protection: The oxidant, hydroxyethyl phosphate (0.1-5%) and disodium EDTA (0.1-2%), synergistically chelate metal ions such as iron and copper, reducing the hydrogen peroxide decomposition rate from 20% (6 months) in traditional formulas to below 5% (18 months), avoiding uneven dyeing caused by oxidant failure, while reducing the stimulation of free oxygen on the scalp.

[0037] IV. Highly efficient and stable system performance

[0038] Emulsification-thickening-moisturizing synergistic formulation and long shelf-life technology enhance product usability:

[0039] Uniform mixing and easy operation: Cetearyl alcohol (5-15%) and cetearyl alcohol polyether-25 (3-10%) form an oil-in-water emulsion system, resulting in a paste with moderate consistency (viscosity 3000-5000 mPa·s), which is easy to apply and does not drip. The time for separation after mixing is extended to 120 minutes (compared to only 45 minutes for traditional products), greatly improving the user's error tolerance.

[0040] Long-lasting stability and activity retention: Sodium sulfite (1%) and ascorbic acid (1%) build an antioxidant barrier in hair dye. Combined with the dual chelation technology of oxidants, the product shelf life is extended from the industry average of 12 months to 18 months. No additional stabilizers are required during use, simplifying the operation process.

[0041] V. Environmentally and User-Friendly Sustainable Design

[0042] Low-carbon formula: Propylene glycol (5-10%) is used as a moisturizer to replace traditional toxic solvents, with a biodegradability rate of over 90%; plant extracts are all extracted using supercritical CO2 extraction technology to reduce the use of organic solvents.

[0043] Sensory optimization: The fragrance (0.1-2%) uses a blend of natural mint and citrus to replace the pungent amine scent, resulting in a 75% increase in scent acceptability in actual tests; the auxiliary ingredient, cetearyltrimethylammonium chloride (2-5%), improves hair combability, allowing hair to remain smooth without immediate shampooing or conditioning after coloring, thus enhancing the user experience. Detailed Implementation

[0044] It is obvious that the embodiments described in this invention are only a part of the embodiments of this invention, and not all of the embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0045] A natural black hair dye with a unique synthetic formula and its matching oxidant, comprising a hair dye and an oxidant used together, wherein the hair dye includes an emulsifier, hair dyeing ingredients, nourishing ingredients and auxiliary ingredients in water as a solvent, and the oxidant includes oxidizing ingredients and stabilizing ingredients.

[0046] The emulsifier includes water, cetearyl alcohol, ethanolamine, cetearyl alcohol polyether-25, and propylene glycol, in the following weight percentages: 100 parts water, 5-15 parts cetearyl alcohol, 5-10 parts ethanolamine, 3-10 parts cetearyl alcohol polyether-25, and 5-10 parts propylene glycol, with water as the solvent to a total volume of 100. Cetearyl alcohol acts as a thickener and smoother, giving the hair dye a suitable texture. Ethanolamine is used to adjust the pH of the hair dye, helping to open the hair cuticle and promote the penetration of the dye ingredients. Cetearyl alcohol polyether-25, as an emulsifier, ensures the uniform mixing of the various ingredients in the hair dye. Propylene glycol moisturizes and prevents excessive water loss from the hair during the dyeing process.

[0047] The hair dye ingredients include p-phenylenediamine, resorcinol, phenylmethylpyrazolone, m-aminophenol, and 2,4-diaminophenoxyethanol hydrochloride. By weight percentage, these components are: p-phenylenediamine 1-4 parts, resorcinol 1-2 parts, phenylmethylpyrazolone 0.1-0.5 parts, m-aminophenol 0.1-1.5 parts, and 2,4-diaminophenoxyethanol hydrochloride 0.1-2 parts. P-phenylenediamine is the main color-developing component, reacting with the oxidizing agent to form a black dye, giving the hair a natural black color. Resorcinol assists p-phenylenediamine in enhancing the dyeing effect, making the color more lasting and natural. Phenylexol and m-aminophenol further optimize the color presentation, making the black more pure. 2,4-diaminophenoxyethanol hydrochloride also participates in the dyeing reaction, enhancing the hair dyeing effect.

[0048] The nourishing ingredients include tocopherol (vitamin E), shea butter (BUTYROSPERMUM PARKII), avocado oil (PERSEAGRATISSIMA), Stephania tetrandra extract, Eclipta prostrata leaf extract, ginseng extract (PANAX GINSENG), and turmeric root extract, which are present in the following weight percentages: 1-2 parts tocopherol (vitamin E), 1-2 parts shea butter (BUTYROSPERMUM PARKII), 1-2 parts avocado oil (PERSEAGRATISSIMA), 1-2 parts Stephania tetrandra extract (STEPHANIA TETRANDRA), 1-2 parts Eclipta prostrata leaf extract (ECLIPTA PROSTRATA), and 1 part ginseng (PANAX GINSENG). Ingredients such as 1-2 parts GINSENG extract and 1-2 parts CURCUMALONGA root extract, along with tocopherol (vitamin E), shea butter (BUTYROSPERMUM PARKII), and avocado oil (PERSEAGRATISSIMA), nourish the hair, replenish its nutrients and moisture, and reduce damage from hair dyeing. Plant extracts such as STEPHANIA TETRANDRA extract, ECLIPTA PROSTRATA leaf extract, PANAX GINSENG extract, and CURCUMALONGA root extract have antioxidant and anti-inflammatory effects, helping to protect scalp health and reduce scalp irritation from hair dyeing.

[0049] The auxiliary ingredients include mineral oil, cetearyltrimethylammonium chloride, glyceryl stearate, sodium sulfite, ascorbic acid (vitamin C), panthenol, and fragrance. The weight percentages are: mineral oil 1-5 parts, cetearyltrimethylammonium chloride 2-5 parts, glyceryl stearate 1-5 parts, sodium sulfite 1 part, ascorbic acid (vitamin C) 1 part, panthenol 0.1-1 part, and fragrance 0.1-2 parts. Mineral oil provides lubrication, cetearyltrimethylammonium chloride improves hair combability, and glyceryl stearate helps stabilize the hair dye system. Sodium sulfite and ascorbic acid (vitamin C) act as antioxidants, preventing the hair dye ingredients from oxidizing and deteriorating. Panthenol penetrates deep into the hair, increasing shine and softness. The fragrance is used to improve the scent of the hair dye.

[0050] The oxidizing components include water, hydrogen peroxide, propylene glycol, cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate. By weight percentage, these components are: 100 parts water, 1-19 parts hydrogen peroxide, 1-10 parts propylene glycol, 1-10 parts cetearyl alcohol, 1-5 parts cetearyl alcohol polyether-25, and 1-5 parts glyceryl stearate. Hydrogen peroxide is the main oxidizing component, reacting with the hair dyeing ingredients in the hair dye to achieve the dyeing effect. The functions of propylene glycol, cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate are similar to those in the hair dye, providing moisturizing, thickening, and emulsifying effects, respectively.

[0051] The stabilizing components include salicylic acid, hydroxyethyl diphosphate, and disodium EDTA, in weight percentages of 1-5 parts salicylic acid, 0.1-5 parts hydroxyethyl diphosphate, and 0.1-2 parts disodium EDTA. Salicylic acid can adjust the pH value of the oxidant and also has a certain anti-dandruff and antipruritic effect. Hydroxyethyl diphosphate and disodium EDTA can chelate metal ions, preventing the metal ions from catalyzing the decomposition of hydrogen peroxide and stabilizing the performance of the oxidant.

[0052] Please refer to the table below for the specific ingredients and quantities of the hair dye.

[0053]

[0054]

[0055] Please refer to the table below for the specific components and quantities of the oxidizing agents.

[0056]

[0057]

[0058] Actual usage data

[0059] Data from third-party testing agencies and tens of thousands of user tests show that this product performs excellently in terms of hair dyeing effect, hair care, and safety.

[0060] Dyeing efficacy: At room temperature of 25℃, after the hair dye and oxidant are mixed in a ratio of 1:1.5, the pigment penetration rate can reach 92% within 30 minutes. The purity of black hair under sunlight after dyeing is 35% higher than that of traditional products. After shampooing test, the color retention rate is still 85% after 12 consecutive uses.

[0061] Hair care: The formula contains 1-2% tocopherol (vitamin E), shea butter and other nourishing ingredients, which improves the closure of hair cuticles by 60% after dyeing. According to professional instrument testing, the hair moisture content increases by 40% compared with before dyeing, and the breaking strength is increased by 28%, effectively reducing the dryness and split ends caused by dyeing.

[0062] Scalp-friendly: The added plant ingredients such as Stephania tetrandra extract and red ginseng extract keep the product's pH value stable between 9.0 and 10.5, with a measured scalp irritation index (SSI) of only 0.8 (industry safety threshold ≤2.0), making it suitable for 95% of sensitive individuals.

[0063] Customer Feedback Record

[0064] Core Advantage Validation

[0065] Natural coloring effect: 89% of users reported that "the black color after dyeing is natural and not dull, and it presents a soft shine under different lighting conditions." It is especially favored by business people aged 35-50, among whom teachers, lawyers and other professionals account for 42%, who believe that it "solves the problem of the harsh color of traditional hair blackening products." Typical case: Ms. Wang (45 years old), a user in Shanghai, said after using it continuously for 6 months: "My gray hair is completely covered, and my colleagues all say that my hair looks like naturally healthy black hair."

[0066] Nourishing hair coloring experience: 78% of users noticed that "the hair is smoother after coloring." The auxiliary ingredients, including panthenol and mineral oil, improve combability by 55% after coloring, and the satisfaction rate of users with dry hair reaches 82%. Mr. Li (32 years old), a user from Guangzhou, commented: "As a trendy professional who frequently colors his hair, this product allows me to not worry about my hair quality deteriorating when I frequently change colors."

[0067] Safe and low-irritant: The stable ingredient system designed for sensitive scalps has shown remarkable effectiveness. 91% of users reported "no pungent odor and no burning sensation on the scalp". The combination of salicylic acid and disodium EDTA increases the stability of the oxidant by 40%. Ms. Chen, a user from Hangzhou with sensitive skin, shared: "This is the first hair dye I've found that doesn't cause redness and swelling on my scalp. I didn't even have any allergic reaction at my temples."

[0068] Optimization suggestion collection

[0069] Approximately 15% of users requested the addition of a fragrance-free option. In response to this demand, the formula has been adjusted, and a fragrance-free version specifically for sensitive skin is expected to be launched in Q3 2025.

[0070] 5% of users with long hair reported that "the pump design requires multiple dispensings," so the packaging will be upgraded to a 200ml large-capacity bottle with a dispensing nozzle to improve ease of use.

[0071] Data application and product iteration

[0072] Based on user data from millions of users, the R&D team has completed three technical upgrades:

[0073] The emulsification process of cetearyl alcohol polyether-25 was optimized, which extended the standing and stratification time of the mixture from 45 minutes to 120 minutes, doubling the operational error tolerance.

[0074] The addition of nano-encapsulation technology to red ginseng extract increases the penetration rate of active ingredients by 30%.

[0075] By adjusting the proportion of hydroxyethyl diphosphate in the oxidant, the shelf life was extended from 12 months to 18 months, and the stability was verified to meet the standards through accelerated aging tests.

[0076] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A natural black hair dye with a unique synthetic formula and its matching oxidizing agent, characterized in that, It includes hair dyes and oxidants used together. The hair dyes include emulsifiers, hair dyeing ingredients, nourishing ingredients, and auxiliary ingredients that are water-based solvents. The oxidants include oxidizing ingredients and stabilizing ingredients.

2. The natural black hair dye with a unique synthetic formula and its matching oxidizing agent according to claim 1, characterized in that: The emulsifier comprises water, cetearyl alcohol, ethanolamine, cetearyl alcohol polyether-25, and propylene glycol, in the following weight percentages: 100 parts water, 5-15 parts cetearyl alcohol, 5-10 parts ethanolamine, 3-10 parts cetearyl alcohol polyether-25, and 5-10 parts propylene glycol.

3. The natural black hair dye with a unique synthetic formula and its matching oxidizing agent according to claim 1, characterized in that: The hair dye ingredients include p-phenylenediamine, resorcinol, phenylmethylpyrazolone, m-aminophenol, and 2,4-diaminophenoxyethanol hydrochloride, which are present in the following weight percentages: 1-4 parts p-phenylenediamine, 1-2 parts resorcinol, 0.1-0.5 parts phenylmethylpyrazolone, 0.1-1.5 parts m-aminophenol, and 0.1-2 parts 2,4-diaminophenoxyethanol hydrochloride.

4. The natural black hair dye with a unique synthetic formula and its matching oxidizing agent according to claim 1, characterized in that: The nourishing ingredients include tocopherol (vitamin E), avocado (BUTYROSPERMUM PARKII) fruit oil, avocado (PERSEAGRATISSIMA) oil, Stephania tetrandra (STEPHANIA TETRANDRA) extract, Eclipta prostrata (ECLIPTA PROSTRATA) leaf extract, Panax ginseng (PANAX GINSENG) extract, and Curcuma longa (CURCUMALONGA) root extract, which are present in the following weight percentages: 1-2 parts tocopherol (vitamin E), 1-2 parts avocado (BUTYROSPERMUM PARKII) fruit oil, 1-2 parts avocado (PERSEAGRATISSIMA) oil, 1-2 parts Stephania tetrandra (STEPHANIA TETRANDRA) extract, 1-2 parts Eclipta prostrata (ECLIPTA PROSTRATA) leaf extract, 1-2 parts Panax ginseng (PANAX GINSENG) extract, and 1-2 parts Curcuma longa (CURCUMALONGA) root extract.

5. The natural black hair dye with a unique synthetic formula and its matching oxidizing agent according to claim 1, characterized in that: The auxiliary ingredients include mineral oil, cetearyltrimethylammonium chloride, glyceryl stearate, sodium sulfite ascorbic acid (vitamin C), panthenol, and fragrance, which are in the following weight percentages: 1-5 parts mineral oil, 2-5 parts cetearyltrimethylammonium chloride, 1-5 parts glyceryl stearate, 1 part sodium sulfite, 1 part ascorbic acid (vitamin C), 0.1-1 part panthenol, and 0.1-2 parts fragrance.

6. The natural black hair dye with a unique synthetic formula and its matching oxidizing agent according to claim 1, characterized in that: The oxidizing components include water, hydrogen peroxide, propylene glycol, cetearyl alcohol, cetearyl alcohol polyether-25, and glyceryl stearate, which are in the following weight percentages: 100 parts water, 1-19 parts hydrogen peroxide, 1-10 parts propylene glycol, 1-10 parts cetearyl alcohol, 1-5 parts cetearyl alcohol polyether-25, and 1-5 parts glyceryl stearate.

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