Hair care composition with color protection effect and anti-ultraviolet function on dyed hair

Abstract

The invention belongs to the field of daily chemicals, and particularly relates to a hair care composition with a color protection effect and an anti-ultraviolet function for hair dyeing, which comprises the following components in percentage by weight: 0.1-2% of baobab tree seed oil extract; 0.005 to 0.5 percent of a light protective agent; 2 to 10 percent of methyl polytrimethylsiloxane; 0.3 to 3 percent of bis (cetearyl) amino-terminated polydimethylsiloxane; 2-6% of a softening and moistening agent; 30-60% of a softener; and the balance of volatile carrier oil. Through the synergistic interaction of the adansonia digitata seed oil and the light protective agent, the ultraviolet resistance of the composition is improved, the damage of ultraviolet rays to pigment molecules is greatly reduced, the conditions of color development and fading or gloss loss caused by the ultraviolet rays can be reduced, and the service life of the composition is prolonged. In addition, excellent anti-ultraviolet and hair color protection effects can be obtained under the condition that less light protective agent is added.

Description

Technical Field

[0001] This invention belongs to the field of daily chemical products, and specifically relates to a hair care composition that has color protection and UV protection functions for hair dyeing. Background Technology

[0002] With the continuous improvement of living standards, perming and dyeing hair has become a trend, offering people more diverse styles and showcasing different personal tastes. Perming typically involves altering the disulfide bond structure in hair proteins with perming agents, changing the hair's shape and creating different hairstyles. Dyeing, on the other hand, involves opening the hair cuticles with dyes, allowing the dye to penetrate the hair's inner layers. Therefore, both perming and dyeing cause some damage to the hair, and this damage, in turn, affects the longevity of the dyed hair.

[0003] People often choose to use hair oil to moisturize, nourish, and repair damaged hair after perming or dyeing. Hair oil typically works by forming a protective film on the hair surface to reduce moisture loss or smooth out raised cuticles, thus achieving a repairing effect and improving hair's combability. However, for dyed hair, simply forming a hydrophobic film on the hair surface to reduce pigment molecule loss is far from sufficient to achieve a color-protecting effect; it cannot address the root cause of the damage to the pigment molecules from the dye. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a hair care composition that has color protection and anti-ultraviolet function for hair dyeing. The present invention improves the anti-ultraviolet ability of the composition through the synergistic effect of baobab seed oil and photoprotective agent, greatly reduces the damage of ultraviolet rays to pigment molecules, reduces the fading or loss of shine caused by ultraviolet rays, and achieves excellent anti-ultraviolet and hair color protection effects with less photoprotective agent.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows: A hair care composition with color protection and UV protection for dyed hair comprises the following components by weight percentage: 0.1-2% baobab seed oil extract; 0.005-0.5% photoprotectant; 2-10% methyl polytrimethylsiloxane; 0.3-3% bis-cetearylamino-terminated polydimethylsiloxane; 2-6% emollient; 30-60% conditioner; and the balance being volatile carrier oil.

[0006] Through the above technical solution, baobab seed oil extract can synergistically enhance the photoprotective agent's ability to absorb ultraviolet rays, thereby significantly increasing the UV resistance of the composition of this invention. This allows for good UV resistance even with a small amount of photoprotective agent added, while reducing the photoprotective agent's impact on the composition's smoothness. Simultaneously, methyl polytrimethylsiloxane is a branched volatile silicone oil with low viscosity and rapid evaporation, reducing the stickiness of high-viscosity silicone oils in the composition and improving its dryness and silkiness. It also interacts with the oil phase in the composition, synergistically increasing the composition's volatility, thus allowing hair to dry more quickly after use.

[0007] Preferably, it comprises the following components by weight percentage: 0.3-1.6% baobab seed oil extract; 0.01-0.3% photoprotectant; 3-8% methyl polytrimethylsiloxane; 0.5-2% bis-cetearylamino-terminated polydimethylsiloxane; 2-5% emollient; 30-55% softener; and the balance being volatile carrier oil.

[0008] More preferably, it comprises the following components by weight percentage: 0.5-1.2% baobab seed oil extract; 0.01-0.1% photoprotectant; 4-6% methyl polytrimethylsiloxane; 1-2% bis-cetearylamino-terminated polydimethylsiloxane; 4-5% emollient; 40-55% softener; and the balance being volatile carrier oil.

[0009] Furthermore, the photoprotectant includes at least one of benzophenone-3, ethyl ethyl methoxycinnamate, octocrylene, ethyl ethyl salicylate, homosalate, isoamyl p-methoxycinnamate, ethylhexyl triazine ketone, and butyl methoxydibenzoylmethane.

[0010] The above technical solution can endow the composition with UV resistance, reduce the damage of UV rays to pigment molecules after hair dyeing, and make the hair color last longer.

[0011] Furthermore, the emollient includes at least one of diisopropyl sebacate, diethyl sebacate, isodecanyl valerate, and caprylic / capric triglyceride.

[0012] The above technical solution can improve the extensibility of the composition, allowing the composition components to spread more evenly on the hair surface, forming a more uniform protective film, thereby giving the hair a smooth and even feel, and improving the skin feel on the hands after application.

[0013] Furthermore, the fabric softener includes at least one of polydimethylsiloxane / polydimethylsiloxane alcohol mixture and cyclohexylsiloxane.

[0014] The above technical solutions can impart a smooth and silky feel to hair strands. They can also work together with bis-cetearylamino-terminated polydimethylsiloxane and softeners to evenly smooth hair cuticles, repair damaged hair strands, and form a uniform hydrophobic and heat-insulating protective film on the hair surface. This reduces the damage to the chemical bonds of pigment molecules under overheating conditions and reduces heat damage to the hair, thereby improving the protection of hair strands and hair color.

[0015] Furthermore, the volatile carrier oil includes at least one of polydimethylsiloxane, isododecane, isohexadecane, C13-14 isoalkanes, hydrogenated polyisobutylene, C9-12 alkane, C13-15 alkane, and cyclopentadimethylsiloxane with a viscosity of 1.5-5 cSt.

[0016] Through the above technical solution, the volatile carrier oil has good volatility and spreadability, which helps the composition spread on the hair and evaporate quickly on the hands, thereby reducing the stickiness of the composition, making the hair clean, silky and non-sticky, and improving the skin feel of the palms after use.

[0017] Furthermore, the composition may also include at least one of the following components: pigment 0.000001-0.1%; fragrance 0.01-2%; oil-soluble care ingredient 0.001-3%; preservative 0.05-1%; plant extract 0.001-2%.

[0018] Furthermore, the oil-soluble care ingredients include at least one of squalane, C12-15 benzoyl alcohol, ethylhexyl palmitate, and vitamin E.

[0019] Furthermore, the plant extract includes at least one of the following: purple gromwell root extract, purple gromwell root extract, raspberry extract, and black sesame extract.

[0020] The present invention has the following beneficial effects: 1. This invention improves the UV resistance of the composition by leveraging the synergistic effect of baobab seed oil and photoprotectants, greatly reducing the damage of UV rays to pigment molecules, reducing fading or loss of gloss caused by UV rays, and achieving excellent UV resistance and hair color protection with less photoprotectant added. It also reduces the impact of photoprotectants on the composition's spreadability, refreshing feel, and the feel on the palm after application.

[0021] 2. The color-protecting composition of the present invention, by limiting the proportions of bis-cetearyl amino-terminated polydimethylsiloxane, emollient, and conditioner, allows the three to interact and form a more uniform protective film on the hair surface. This protective film has hydrophobic and heat-insulating functions, which not only restores damaged hair from a hydrophilic state to a hydrophobic state, effectively closes damaged hair cuticles, locks in pigment molecules, and reduces pigment molecule loss, but also absorbs heat energy, reducing the damage to pigment molecules and hair cuticles caused by high temperatures.

[0022] 3. By limiting the ratio of methyltrimethylsiloxane and volatile carrier oil, this invention enables the composition to have a faster evaporation rate and a refreshing feel. After application, the hair dries quickly, leaving it clean, silky, and non-greasy. Furthermore, through the combination of its various components, the composition possesses multiple hair care benefits, including UV protection, long-lasting color protection, heat protection, and repair of damaged hair cuticles. Detailed Implementation

[0023] To make the technical problems, solutions, and advantages of this invention clearer, a detailed description will be provided below with reference to specific examples. However, the scope of protection of this invention is not limited to the following specific embodiments. The described embodiments are merely some, not all, of the embodiments of this invention, and are not intended to limit the invention. 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.

[0024] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of the invention.

[0025] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0026] In the quantitative experiments in the following examples, three replicate experiments were set up, and the data are the average of the three replicate experiments or the average ± standard deviation.

[0027] The hair care composition of the present invention includes Examples 1 to 6 and Comparative Examples 1 to 8, and the specific components and contents are shown in Tables 1 to 2, in units of weight percentage.

[0028] Table 1

[0029] Table 2

[0030] The preparation methods of the above embodiments and comparative examples are conventional configuration and mixing techniques in the art, and will not be described in detail here.

[0031] Experimental testing 1. Color protection effect test method (1) Hair bundle selection and cleaning: Select Asian hair bundles from the same batch, with no difference in appearance. Trim the ends neatly, adjust the length to about 26cm, and adjust the weight to 5.8-6.2g. Soak the hair bundle in 0.5% K12 solution, bathe in a constant temperature water bath at 40℃ for 30 minutes, and then rinse it clean with water.

[0032] (2) Prepare chemical treatment solution: Weigh 119g of 30% hydrogen peroxide and 91g of deionized water, stir evenly, and adjust the pH value to 9.3-9.5 with 25-28% ammonia water. Prepare and use immediately.

[0033] (3) Treatment of damaged hair strands: Immerse all hair strands in the chemical treatment solution and leave at room temperature (20-25°C) for 30 minutes. Then rinse with tap water for 3 minutes to ensure the chemical treatment solution is completely removed. Soak the treated hair strands in 1000mL of deionized water for 60 minutes, then rinse thoroughly. Gently comb the wet hair strands 10 times, and hang them vertically in a constant temperature and humidity environment until they are dry. Then place them in a constant temperature and humidity chamber (20-25°C, 40-60% relative humidity) for at least 4 hours.

[0034] (4) Hair dyeing: Select red hair dye to dye the hair evenly, wrap it with plastic wrap, and after 30 minutes, rinse the hair with tap water and place it in a constant temperature and humidity environment away from light for more than 12 hours.

[0035] (5) Initial test values: The lightness and chromaticity index of three positions on the undyed hair sample strand were tested using a spectrophotometer: L * 0, a * 0, b * 0. The hair bundles were divided into a blank control group and a sample group on an average basis to ensure that there were no significant differences between the groups.

[0036] (6) Sample application: First, take 0.033g of sample and drop it onto the palm of your hand and spread it evenly. Then, apply it evenly to the hair strand and comb it 10 times. Blank control group: No treatment was performed. Leave for 15 minutes.

[0037] (7) Based on the influence of common factors in daily life on hair color fading, the following test schemes were set up to simulate the effects of ultraviolet radiation, daily shampooing, and hot blow-drying on hair color. A spectrophotometer was used to test the lightness (L) and chromaticity index (a, b) at three locations on the hair strand and to calculate the color difference value. The formula for calculating the color difference ΔE is:

[0038] ΔL * The difference between two L values, Δa * Refers to the two instances of a before and after * The difference in values, Δb * Refers to the two bs before and after * The difference in values ​​is analyzed using statistical analysis software. A smaller ΔE indicates a smaller change in value and a better color-protecting effect. (7.1) UV protection test: Hair strands of the blank control group and the sample group were placed in a xenon lamp aging test chamber (Q-SunXE-1-BC) and irradiated for 24, 48, and 72 hours respectively to simulate the damage model caused by sun exposure. At each time point, the lightness and chromaticity index of three positions of the hair strand were measured using a spectrophotometer and the color difference value was calculated. The parameters of the xenon lamp are shown in Table 3.

[0039] Table 3 Xenon Lamp Test Parameters

[0040] (7.2) Daily cleaning and protection effect test: The hair strands of the control group and the sample group were washed with 14% sodium dodecyl sulfate aqueous solution, rubbed for one minute, left to stand for two minutes, rinsed for one minute, and the cycle was repeated 5 times. The hair strands were placed in a dark and constant temperature and humidity environment to dry. The lightness and chromaticity index of three positions of the hair strands were tested with a spectrophotometer and the color difference value was calculated.

[0041] (7.3) Heat protection effect test: The hair strands of the blank control group and the sample group were washed with clean water and rubbed for 2 minutes. The hair strands were then hung 10 cm away from the hair dryer and blow-dried for 3 minutes on each side. The hair strands were then hung in a constant temperature and humidity room with a temperature of 20-25℃ and a relative humidity of 40-60% for 4 hours. The lightness and chromaticity index of three positions of the hair strands were measured with a spectrophotometer and the color difference value was calculated.

[0042] 2. Hair combability test method (1) Select hair bundles with a weight of 5.8 to 6.2g. Before testing, comb the hair bundles repeatedly more than 10 times to ensure that each hair strand is separated and there are no dead knots. Use a hair combing instrument to test the initial value of the hair bundles and select hair bundles with an average combing force in the range of 0.04N to 0.10N and similar initial values ​​for testing.

[0043] (2) Take 0.033g of sample and spread it evenly on the palm of your hand, then apply it evenly to the hair strand, and comb it 10 times. Test the combability test value of the hair strand after using the sample; calculate the change rate of combing force before and after using the sample.

[0044] Formula for calculating the rate of change: Rate of change before and after sampling = ((mean after sampling - mean before sampling) / mean before sampling) * 100% 3. Cuticle Repair Test Method (1) Place the same batch of bundles in 500 mL of 1% sodium dodecyl sulfate aqueous solution, soak in a constant temperature water bath at 37°C for 30 min, then rinse with tap water and place in a constant temperature and humidity environment for more than 4 h.

[0045] (2) Then place the hair bundle in a mixed solution of 9% hydrogen peroxide and 3% ammonia water, and bleach it in a constant temperature water bath at 37°C for 30 minutes. Comb the hair bundle until there are no dead knots, and then hang it in a constant temperature and humidity environment for more than 12 hours.

[0046] (3) Select a hair bundle, select 10 hair strands with similar diameters on the same hair bundle, tie a knot in the middle of each hair strand, take a picture at 500x magnification using a scanning electron microscope, take a picture and score the position where the hair cuticles are obviously raised after the knot is tied, and select hair strands with similar scores for comparative testing.

[0047] (4) Sample application: Use a disposable cotton swab to take a small amount of sample at the knot and place it in a constant temperature drying oven (set temperature: 75℃) for 2 minutes. Take a photo of the same test location again and score it. The scoring criteria are shown in Table 4 below, and the score is accurate to 0.5.

[0048] Table 4. Hair Scale Scoring Criteria

[0049] 4. Freshness Test Method (1) Recruit 10 volunteers with dry and frizzy long hair. Use the same silicone-free shampoo to wash their hair. After washing and drying their hair, divide their hair into two sides and use one sample (1mL) on each side. After gently massaging and absorbing the sample, feel the refreshing feeling of the hair. Between the two sample applications, use unscented shower gel to clean the residual sample on your hands. Only after your hands are dry can you apply the sample for the second time.

[0050] (2) Satisfaction scores are calculated on a 10-point scale. The corresponding satisfaction scores are shown in Table 5 below. During the testing period, volunteers are required to visit the laboratory daily to conduct the above testing procedures and test the samples that need to be tested until all samples have been tested.

[0051] Table 5: Freshness Score Evaluation Table

[0052] The specific test results for the test items are shown in Tables 6 and 7.

[0053] Table 6

[0054] Table 7

[0055] Test data from Examples 2-4 show that, under the same photoprotective agent combination, within the addition range of the present invention, as the amount of baobab seed oil extract increases, the degree of hair color fading decreases, and the UV resistance of the composition is enhanced. Furthermore, the longer the UV irradiation time, the more significant the difference in hair color protection effect, further demonstrating the ability of baobab seed oil extract to synergistically improve the photoprotective effect of the composition. The rate of change in dry hair combing strength slightly increases with the increase of baobab seed oil extract, while the cleanliness between samples remains essentially unchanged, indicating that the addition of baobab seed oil extract does not affect the cleanliness and conditioning feel of the composition, and may even slightly improve the smoothness of the composition, making the hair smoother. In terms of heat protection effect testing, baobab seed oil extract does not affect the heat protection effect of the composition. In terms of surfactant-based color removal and fading, baobab seed oil extract can improve the color-protecting effect of the composition. It is speculated that this is because some components of baobab seed oil extract can be adsorbed and deposited on the hair surface together with the silicone oil and other components of the composition, forming a denser hydrophobic protective film, reducing the washing and loss of pigment molecules, thereby reducing the impact of daily washing on hair color and improving the color-protecting effect.

[0056] The test results of Examples 3 and 5-6 show that, within the range of additive amounts of the present invention, as the amounts of bis-cetearyl amino-terminated polydimethylsiloxane, emollient diisopropyl sebacate, and conditioning agent polydimethylsiloxane / polydimethylsiloxane alcohol mixture are increased, the composition's UV resistance, surfactant cleansing and protection, heat protection effect, and dry hair combing ability all show an increasing trend. The cuticle repair ability can reach full marks, and it does not affect the composition's freshness. In particular, there is a significant improvement in surfactant cleansing and protection, heat protection effect, and dry hair combing ability.

[0057] Comparative Example 2 does not contain bis-cetearyl amino-terminated polydimethylsiloxane (baobab seed oil extract has virtually no effect on the heat protection effect, so no distinction is made in the comparison), Comparative Example 5 does not contain bis-cetearyl amino-terminated polydimethylsiloxane and the softener is less than the range of the present invention, and Comparative Example 6 does not contain diisopropyl sebacate. Its cuticle repair effect, surfactant cleaning and color protection effect, and heat protection effect are all much lower than those of Example 4. This indicates that bis-cetearyl amino-terminated polydimethylsiloxane, softener, and fabric softener can work synergistically to form a hydrophobic and heat-insulating protective film. Within the scope of the technical specifications, as the dosage increases, the protective film becomes denser, and the effect of protecting the cuticle and locking in color is more significant.

[0058] A comparison of the test results of Example 4 and Comparative Example 3 shows that the composition has weak UV protection when no photoprotectant is added.

[0059] A comparison of the test results of Example 1 and Comparative Examples 1-2 shows that when only a photoprotectant is added to the composition without baobab seed oil extract, the composition exhibits a certain level of UV protection, which increases with the amount of photoprotectant added, but remains at a low level. The addition of baobab seed oil extract significantly enhances the UV absorption capacity of the photoprotectant, synergistically improving the photoprotective effect of the composition under long-term exposure to strong UV radiation, reducing UV damage to pigment molecules, and improving the color protection effect of the composition. Comparative Example 2 exhibits a poor cleanliness score and a low rate of change in combing strength. This is because most photoprotectants have a thicker feel, and a higher amount can easily lead to sticky and difficult-to-dry hair, thus affecting the cleanliness. The sticky and unclean hair further affects the smoothness of the hair, resulting in a lower rate of change in combing strength.

[0060] A comparison of the test results of Example 4 and Comparative Example 4 shows that Comparative Example 4, which does not contain baobab seed oil extract or photoprotectant, and replaces bis-cetearyl amino-terminated polydimethylsiloxane with 2% of the currently used hair care ingredient bis-aminopropyl polydimethylsiloxane, has significantly lower test data than Example 4. This fully demonstrates that the combination of the present invention has a more significant color protection effect and cuticle repair ability, resulting in smoother and fresher hair after use. It further illustrates the UV protection effect of the combination of baobab seed oil extract and photoprotectant, as well as the synergistic formation of a uniform protective film between bis-cetearyl amino-terminated polydimethylsiloxane, the emollient diisopropyl sebacate, and the smoothing agent polydimethylsiloxane / polydimethylsiloxane alcohol mixture, which locks in pigment molecules, reduces pigment loss caused by surfactant washing, and reduces heat damage to pigment molecules and cuticles.

[0061] Comparing the test results of Example 4 and Comparative Example 6, it can be seen that Comparative Example 6 does not contain diisopropyl sebacate. The color difference between the two in the xenon lamp test is small, but the color difference after surfactant cleaning, color difference after hot blow drying, and hair cuticle repair ability are all significantly different. The analysis shows that emollients such as diisopropyl sebacate can make the film formed by the emollient and the active ingredient bis-cetearyl amino-terminated polydimethylsiloxane in the composition more uniform and dense, improve the spreading effect of the composition, and make it form a uniform protective film on the hair, thereby improving the color protection and hair cuticle repair effect.

[0062] A comparison of the test results of Example 4 and Comparative Example 7 shows that the amount of softener added in Comparative Example 7 exceeds the technical scope of this invention. Except for a slight improvement in surfactant cleaning and color protection ability compared to Example 4, the UV color protection ability, heat protection ability, and cuticle repair ability are basically the same. This indicates that further increasing the amount of softener beyond the technical scope of this invention does not achieve a significant protective effect, but instead brings unnecessary cost pressure. Moreover, excessively high softener content causes the matrix to be thick and sticky, which in turn greatly reduces the refreshingness of the composition, making it sticky and difficult to dry, reducing the improvement effect of dry hair combing, and giving consumers an unsightly experience.

[0063] Comparing the test results of Example 4 and Comparative Example 8, it can be seen that Comparative Example 8 does not contain methyl polytrimethylsiloxane. The difference in UV color protection ability between the two is not significant. The surfactant cleaning and color protection ability, heat protection ability and hair cuticle repair ability are slightly worse than those of Example 4. However, the data difference in dry hair combing ability and cleanliness is more significant. This indicates that the addition of methyl polytrimethylsiloxane can accelerate the evaporation speed of the composition, improve the quick-drying efficiency and improve combability, making the hair more clean and silky.

[0064] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0065] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0066] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A hair care composition with color-protecting and UV-protective effects for dyed hair, characterized in that, It includes the following components by weight percentage: baobab seed oil extract 0.1-2%; photoprotectant 0.005-0.5%; methyl polytrimethylsiloxane 2-10%; bis-cetearyl amino-terminated polydimethylsiloxane 0.3-3%; emollient 2-6%; softener 30-60%; balance volatile carrier oil.

2. The hair care composition according to claim 1, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, It includes the following components by weight percentage: 0.5-1.2% baobab seed oil extract; 0.01-0.1% photoprotectant; 4-6% methyl polytrimethylsiloxane; 1-2% bis-cetearylamino-terminated polydimethylsiloxane; 4-5% emollient; 40-55% softener; balance volatile carrier oil.

3. The hair care composition according to claim 1, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The photoprotectant includes at least one of benzophenone-3, ethyl ethyl methoxycinnamate, octocrylene, ethyl ethyl salicylate, humosalidinyl ester, p-isoamyl methoxycinnamate, ethylhexyl triazine ketone, and butyl methoxydibenzoylmethane.

4. The hair care composition according to claim 1, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The emollient includes at least one of diisopropyl sebacate, diethyl sebacate, isodecanyl valerate, and caprylic / capric triglyceride.

5. The hair care composition according to claim 1, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The softener includes at least one of polydimethylsiloxane / polydimethylsiloxane alcohol mixture and cyclohexylsiloxane.

6. The hair care composition according to claim 1, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The volatile carrier oil includes at least one of the following: polydimethylsiloxane, isododecane, isohexadecane, C13-14 isoalkanes, hydrogenated polyisobutylene, C9-12 alkane, C13-15 alkane, and cyclopentadimethylsiloxane, with a viscosity of 1.5-5 cSt.

7. The hair care composition according to claim 1, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The composition may further include at least one of the following components: pigment 0.000001-0.1%; fragrance 0.01-2%; oil-soluble care ingredient 0.001-3%; preservative 0.05-1%; plant extract 0.001-2%.

8. The hair care composition according to claim 7, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The oil-soluble care ingredients include at least one of squalane, C12-15 benzoyl alcohol, ethylhexyl palmitate, and vitamin E.

9. The hair care composition according to claim 7, which has color-protecting and UV-protective effects on dyed hair, is characterized in that, The plant extracts include at least one of the following: purple gromwell root extract, purple gromwell root extract, raspberry extract, and black sesame extract.

Images