Oil control composition and use thereof

Abstract

The application discloses an oil control composition, which comprises the following components in parts by mass: Chinese rehmannia root extract 0.2-1 parts; oil tea leaf extract 0.2-2 parts; safflower extract 0.2-2.5 parts. An oil control shampoo is prepared by adding the oil control composition into the shampoo, adding an anionic surfactant and a cationic polymer, forming flocculation in the process of washing hair, and adding an amphoteric surfactant to increase the strength and duration of the flocculation, and increasing the deposition of the oil control active substance on the scalp. The oil control shampoo comprises the following components in percentage by mass: oil control composition 0.6%-5%; cationic polymer 1%-3%; anionic surfactant 10%-30%; amphoteric surfactant 5%-15%; thickening agent 1-2%; pH regulator in proper amount; sunscreen 0.5%-1.5%; preservative 0.5-1.5%; and deionized water added to 100%. The product has better oil control effect.

Description

Technical Field

[0001] This invention relates to the field of daily chemical products, and more particularly to an oil-controlling composition and its application. Background Technology

[0002] The main reason for excessively oily scalp is overactive sebaceous glands in the hair follicles. High levels of androgens or overly sensitive androgen receptors are significant contributing factors to excessive sebum production. Excessive sebum production leads to greasy, flat, and lackluster hair, negatively impacting appearance. With increasing societal pressures and lifestyle habits, oily hair is becoming a more prominent issue, making the development of highly effective and long-lasting oil-control products a pressing need.

[0003] It is well known that Chinese Rehmannia glutinosa root extract, tea oil extract, and safflower extract all have a certain oil-controlling effect on the scalp. However, the effect is not obvious when used alone, especially in shampoo-wash products. The active ingredients are easily washed away by the water during rinsing and are difficult to settle on the scalp to exert an oil-controlling effect. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem solved by the present invention is how to provide a wash-off product with good oil control effect.

[0005] To solve the above-mentioned technical problems, the present invention provides an oil-controlling composition, comprising the following components by weight:

[0006] 0.2-1 part of Rehmannia glutinosa root extract from China;

[0007] 0.2-2 parts of tea oil extract;

[0008] Safflower extract 0.2~2.5 parts.

[0009] To solve the above-mentioned technical problems, the present invention provides an oil-controlling shampoo. An oil-controlling composition is added to the shampoo, and by adding anionic surfactants and cationic polymers, flocculants are formed during the shampooing process. Amphoteric surfactants are then used to increase the strength and persistence of the flocculants, thereby increasing the deposition of oil-controlling active ingredients on the scalp. The shampoo comprises the following components by weight:

[0010] Oil-controlling composition 0.6%-5%;

[0011] Cationic polymers 1%-3%;

[0012] Anionic surfactants: 10%-30%;

[0013] Amphoteric surfactants 5%-15%;

[0014] Thickener: 1-2%;

[0015] pH adjuster in appropriate amount;

[0016] Sunscreen 0.5%-1.5%;

[0017] Preservative 0.5-1.5%;

[0018] Add deionized water to 100%;

[0019] The anionic surfactant is selected from at least one of fatty alcohol polyether sulfate, monoalkyl sulfate, fatty acylmethyl taurate, and fatty acylmethyl taurate; preferably, the fatty alcohol polyether sulfate is sodium lauryl ether sulfate.

[0020] The amphoteric surfactant is selected from at least one of fatty acyl amphoteric acetate, fatty acyl propyl betaine, and fatty amide hydroxypropyl sulfobetaine; preferably, the fatty acyl amphoteric acetate is disodium cocoamphodiacetate.

[0021] The thickener is sodium chloride.

[0022] The cationic polymer is at least one of guar gum hydroxypropyltrimethylammonium chloride, cassia gum hydroxypropyltrimethylammonium chloride, and hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0023] The light-blocking agent is at least one of ethylene glycol stearate and ethylene glycol distearate.

[0024] The pH adjuster is at least one of sodium citrate and sodium hydroxide.

[0025] This invention's product utilizes the synergistic effect of three active substances—safflower extract, Rehmannia glutinosa root extract, and Tea oil extract—to enhance the inhibition of 5α-reductase activity. Compared to using these three extracts individually, it exhibits superior oil-controlling effects. Furthermore, by selecting appropriate anionic surfactants, amphoteric surfactants, and cationic polymers in combination, a flocculation effect is created during shampooing, resulting in a more efficient deposition of the oil-controlling composition on the scalp and a more significant oil-controlling effect. Detailed Implementation

[0026] The specific implementation methods of the present invention will be further described below with reference to examples and experiments, but these are not intended to limit the present invention. Example

[0027] An oil-controlling composition, comprising the following components in parts by weight:

[0028] 0.2 parts of Rehmannia glutinosa root extract from China;

[0029] Two parts of tea oil extract;

[0030] 0.2 parts of safflower extract. Example

[0031] An oil-controlling composition, comprising the following components in parts by weight:

[0032] 0.5 parts of Rehmannia glutinosa root extract from China;

[0033] One part of tea oil extract;

[0034] 1.5 parts of safflower extract. Example

[0035] An oil-controlling composition, comprising the following components in parts by weight:

[0036] One part of Rehmannia glutinosa root extract from China;

[0037] 0.2 parts of tea oil extract;

[0038] Safflower extract 2.5 parts. Example

[0039] An oil-control shampoo, comprising the following components by weight:

[0040] The oil-controlling composition (0.6%) is a mixture of 0.2% Rehmannia glutinosa root extract, 0.2% Carthamus tinctorius extract, and 0.2% Camellia oleifera extract.

[0041] The cationic polymer is composed of 1% polyquaternium-11 (0.3%) and 0.7% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0042] The anionic surfactant is 10% sodium lauryl ether sulfate;

[0043] The amphoteric surfactant is 5% disodium cocoamphodiacetate;

[0044] The thickener is 1% sodium chloride;

[0045] pH adjuster in appropriate amount;

[0046] The light-blocking agent is 0.5% ethylene glycol distearate;

[0047] The preservative 0.5 is a mixture of 0.3% phenoxyethanol and 0.2% ethylhexylglycerin;

[0048] Add deionized water to a concentration of 100%. Example

[0049] An oil-control shampoo, comprising the following components by weight:

[0050] The oil-controlling composition (5%) is a mixture of 1% Rehmannia glutinosa root extract, 2% Carthamus tinctorius extract, and 2% Camellia oleifera extract.

[0051] The cationic polymer is composed of 3% polyquaternium-11 (2.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0052] The anionic surfactant is sodium lauryl ether sulfate (30%).

[0053] The amphoteric surfactant is 15% disodium cocoamphodiacetate;

[0054] The thickener is 2% sodium chloride;

[0055] pH adjuster in appropriate amount;

[0056] The light-blocking agent is 1.5% ethylene glycol distearate;

[0057] Preservative 1.5 is a mixture of 1% phenoxyethanol and 0.5% ethylhexylglycerin;

[0058] Add deionized water to a concentration of 100%. Example

[0059] An oil-control shampoo, comprising the following components by weight:

[0060] The oil-controlling composition (3%) is a mixture of 0.5% Rehmannia glutinosa root extract, 1% Carthamus tinctorius extract, and 1.5% Camellia oleifera extract.

[0061] The cationic polymer is composed of 2% polyquaternium-11 (1.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0062] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0063] The amphoteric surfactant is 10% disodium cocoamphodiacetate;

[0064] The thickener is 1.5% sodium chloride;

[0065] pH adjuster in appropriate amount;

[0066] The light-blocking agent is 1% ethylene glycol distearate;

[0067] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0068] Add deionized water to a concentration of 100%. Example

[0069] An oil-control shampoo, comprising the following components by weight:

[0070] The oil-controlling composition is 4%, which is a mixture of 1% Rehmannia glutinosa root extract, 0.5% Carthamus tinctorius extract and 2.5% Camellia oleifera extract.

[0071] The cationic polymer is composed of 1% polyquaternium-11 (0.5%) and hydroxypropyl guar gum (0.5%) hydroxypropyl trimethylammonium chloride.

[0072] The anionic surfactant is sodium lauryl ether sulfate (30%).

[0073] The amphoteric surfactant is 15% disodium cocoamphodiacetate;

[0074] The thickener is 1.5% sodium chloride;

[0075] pH adjuster in appropriate amount;

[0076] The light-blocking agent is 1.2% ethylene glycol distearate;

[0077] The preservative is 1%, which is a mixture of 0.5% phenoxyethanol and 0.5% ethylhexylglycerin;

[0078] Add deionized water to a concentration of 100%.

[0079] Comparative Example 1

[0080] An oil-control shampoo, comprising the following components by weight:

[0081] The oil-controlling composition (3%) is a mixture of 0.5% Rehmannia glutinosa root extract, 1% Carthamus tinctorius extract, and 1.5% Camellia oleifera extract.

[0082] The cationic polymer is composed of 2% polyquaternium-11 (1.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0083] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0084] The thickener is 1.5% sodium chloride;

[0085] pH adjuster in appropriate amount;

[0086] The light-blocking agent is 1% ethylene glycol distearate;

[0087] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0088] Add deionized water to a concentration of 100%.

[0089] Comparative Example 2

[0090] An oil-control shampoo, comprising the following components by weight:

[0091] The oil-controlling composition (3%) is a mixture of 0.5% Rehmannia glutinosa root extract, 1% Carthamus tinctorius extract, and 1.5% Camellia oleifera extract.

[0092] The cationic polymer is 2%, which is composed of 2% polyquaternary ammonium salt-11;

[0093] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0094] The amphoteric surfactant is 10% disodium cocoamphodiacetate;

[0095] The thickener is 1.5% sodium chloride;

[0096] pH adjuster in appropriate amount;

[0097] The light-blocking agent is 1% ethylene glycol distearate;

[0098] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0099] Add deionized water to a concentration of 100%.

[0100] Comparative Example 3

[0101] An oil-control shampoo, comprising the following components by weight:

[0102] The oil-controlling composition is 3% safflower extract;

[0103] The cationic polymer is composed of 2% polyquaternium-11 (1.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0104] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0105] The amphoteric surfactant is 10% disodium cocoamphodiacetate;

[0106] The thickener is 1.5% sodium chloride;

[0107] pH adjuster in appropriate amount;

[0108] The light-blocking agent is 1% ethylene glycol distearate;

[0109] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0110] Add deionized water to a concentration of 100%.

[0111] Comparative Example 4

[0112] An oil-control shampoo, comprising the following components by weight:

[0113] The oil-controlling composition is 3% Rehmannia glutinosa root extract;

[0114] The cationic polymer is composed of 2% polyquaternium-11 (1.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0115] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0116] The amphoteric surfactant is 10% disodium cocoamphodiacetate;

[0117] The thickener is 1.5% sodium chloride;

[0118] pH adjuster in appropriate amount;

[0119] The light-blocking agent is 1% ethylene glycol distearate;

[0120] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0121] Add deionized water to a concentration of 100%.

[0122] Comparative Example 5

[0123] An oil-control shampoo, comprising the following components by weight:

[0124] The oil-controlling composition is 3% tea leaf extract;

[0125] The cationic polymer is composed of 2% polyquaternium-11 (1.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0126] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0127] The amphoteric surfactant is 10% disodium cocoamphodiacetate;

[0128] The thickener is 1.5% sodium chloride;

[0129] pH adjuster in appropriate amount;

[0130] The light-blocking agent is 1% ethylene glycol distearate;

[0131] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0132] Add deionized water to a concentration of 100%.

[0133] Comparative Example 6

[0134] An oil-control shampoo, comprising the following components by weight:

[0135] The oil-controlling composition (3%) is a mixture of 0.5% Rehmannia glutinosa root extract, 1% Carthamus tinctorius extract, and 1.5% Camellia oleifera extract.

[0136] The cationic polymer is composed of 2% polyquaternium-11 (1.5%) and 0.5% hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

[0137] The anionic surfactant is sodium lauryl ether sulfate (20%).

[0138] The amphoteric surfactant is 10% disodium cocoamphodiacetate;

[0139] pH adjuster in appropriate amount;

[0140] The light-blocking agent is 1% ethylene glycol distearate;

[0141] The preservative is 1%, which is a mixture of 0.8% phenoxyethanol and 0.2% ethylhexylglycerin;

[0142] Add deionized water to a concentration of 100%.

[0143] The preparation methods of the oil-control shampoos in Examples 4 to 6 and Comparative Examples 1 to 6 above include the following steps:

[0144] (1) Add deionized water, anionic surfactant and amphoteric surfactant to water, heat to 80°C to dissolve and disperse evenly;

[0145] (2) Add hydroxypropyl guar gum hydroxypropyl trimethylammonium chloride and ethylene glycol distearate in sequence, stir to dissolve evenly, and cool to 45°C;

[0146] (3) Add sodium chloride, sodium hydroxide, safflower extract, Chinese rehmannia root extract, tea oil extract, polyquaternium-11 and preservative, which are dissolved in deionized water respectively, and stir until they are evenly dissolved to obtain the finished product.

[0147] In the comparative examples described above, the amount of sodium hydroxide used was adjusted to bring the pH to between 4.0 and 6.5.

[0148] To better illustrate the beneficial effects of oil-controlling shampoos, the following efficacy evaluation experiments were conducted on shampoos containing oil-controlling compositions:

[0149] (a) Efficacy verification:

[0150] Sebum secretion is closely related to sebaceous gland function, which in turn is closely related to androgen regulation. 5α-reductase, a membrane protein located on microsomes and the cell nucleus, uses the reduced coenzyme NADPH as a hydrogen donor and catalyzes the conversion of testosterone to dihydrotestosterone (DHT). DHT can induce excessive sebum secretion from the sebaceous glands. Inhibiting 5α-reductase activity reduces DHT production and lowers sebaceous gland lipid secretion levels.

[0151] Through experimental design, the enzyme activity of 5α-reductase in the test sample was lower than that in the negative control (physiological saline), indicating that the catalytic rate of 5α-reductase in the negative control (physiological saline) was significantly faster than that in the test sample. Therefore, the test sample had a certain inhibitory effect on 5α-reductase, thus achieving the oil control effect.

[0152] Samples from Example 6 and Comparative Examples 1-6 were pretreated to prepare sample solutions (samples diluted 4.534 times). 20 μL each of the sample solution and the negative control (physiological saline) were added to the enzyme reaction system and catalyzed for 10 min. The enzyme reaction was carried out at 37°C and pH 6.0. The absorbance was measured at 340 nm using a Unico (Shanghai) Instruments Co., Ltd. UV-2800 UV-Vis spectrophotometer, and the enzyme activity was calculated by averaging three absorbance values.

[0153] Enzyme activity U = (Absorbance change A / 0.01 * Reaction time t) * Dilution factor D

[0154] Results of 5α-reductase activity:

[0155] parameter Example 6 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 negative control Mean absorbance Abs 0.082 0.083 0.082 0.106 0.109 0.104 0.085 0.118 Enzyme activity 3.718 3.763 3.718 4.806 4.942 4.715 3.854 5.350

[0156] As shown in the table above, under the premise that the three components—safflower extract, Chinese rehmannia root extract, and tea oil extract—were added in equal amounts and the total content was equal in Examples 6, 1, 2, and 6, the enzyme activity inhibition levels were similar. Comparative Example 3 added safflower extract alone, Comparative Example 4 added Chinese rehmannia root extract alone, and Comparative Example 5 added tea oil extract alone, and the total content of each individual addition was equal to the sum of the total content of the three components added in Example 6. Therefore, under the premise of equal total content, if the three components are added individually, the enzyme activity value is significantly higher than that of the combined addition, and the enzyme activity inhibition effect is lower than that of the combined addition. Thus, it can be concluded that the oil-controlling composition has a synergistic effect in inhibiting 5α-reductase activity.

[0157] Seventy volunteers with oily hair were recruited and divided into seven groups of ten. Groups 1-7 used samples from Example 6 and Comparative Examples 1-6, respectively, washing their hair every 48 hours. The effects were observed after 28 days of use. Before the testing began, the volunteers' hair oiliness was assessed after washing. The scoring criteria and data are as follows:

[0158] The oiliness level was rated on a scale of 1 to 5, where 1 indicates very oily, 2 indicates moderately oily, 3 indicates average, 4 indicates refreshing, and 5 indicates very refreshing. The results were taken as the average of each group and rounded to one decimal place.

[0159] After first use:

[0160] time Group 1 Group 2 Group 3 Group 4 Group 5 Group 6 Group 7 8 hours after washing 3.3 3.4 3 3.6 3.2 3.3 3.4 24 hours after washing 2.4 2.1 2.5 2.2 2.4 2.3 2.2 48 hours after washing 1.2 1.4 1.4 1.5 1.3 1.2 1.5

[0161] After 28 days of use:

[0162] time Example 6 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 8 hours after washing 5 4.2 4.3 3.9 3.7 3.8 4.8 24 hours after washing 4.8 3.7 3.3 2.8 2.9 2.9 4.1 48 hours after washing 4.1 3.1 2.4 1.9 1.8 1.7 3.7

[0163] From the table above, in Comparative Example 1, compared to Example 6, the absence of the amphoteric surfactant cocamidopropyl betaine resulted in a weaker flocculation effect compared to Example 6, and the oil-controlling composition could not be well deposited on the scalp to exert its effect. In Comparative Example 2, compared to Example 6, the absence of the cationic polymer polyquaternium-11 prevented the formation of a flocculation effect, and the oil-controlling composition was washed away with running water during shampooing, failing to be well deposited on the scalp to exert its effect, leading to rapid oil return after shampooing. In Comparative Example 3, compared to Example 6, the absence of the oil-controlling composition Rehmannia glutinosa root extract, and in Comparative Example 4, compared to Example 6, the absence of safflower extract. Compared to Example 6, Comparative Example 5 did not add tea leaf extract, and the results showed a significant reduction in long-lasting oil control effect. As can be seen from Example 6 and Comparative Examples 3, 4, and 5, when the three oil-controlling ingredients are added individually, they cannot achieve the purpose of long-lasting oil control. When all three are used at the same time, the hair can still remain relatively clean two days after washing, achieving a long-lasting oil control effect. Comparative Example 6 added sodium chloride daily as a thickener, and the effect was also significantly different from that of Example 6. Sodium chloride can also affect the deposition efficiency of the oil-controlling composition on the scalp by affecting the flocculation effect, thereby affecting the oil control effect.

[0164] This invention utilizes the synergistic effect of three active ingredients—safflower extract, Rehmannia glutinosa root extract, and Tea oil extract—to enhance the inhibition of 5α-reductase activity. Compared to using any one of these ingredients alone, it offers superior oil control. Furthermore, by selecting appropriate anionic surfactants, amphoteric surfactants, and cationic polymers in combination, a flocculation effect is created during shampooing, resulting in a more efficient deposition of the oil-controlling composition on the scalp and a more significant oil-controlling effect.

[0165] The embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. An oil-controlling shampoo, characterized in that, An oil-controlling composition is added to the shampoo. This composition, through the addition of anionic surfactants and cationic polymers, forms flocs during the shampooing process. Amphoteric surfactants further enhance the strength and persistence of the flocs, increasing the deposition of oil-controlling active ingredients on the scalp. By weight percentage, it includes the following components: The oil-controlling composition comprises 0.6%-5% of the following components by weight: 0.2-1 parts of Rehmannia glutinosa root extract; 0.2-2 parts of Camellia oleifera extract; and 0.2-2.5 parts of Carthamus tinctorius extract. Cationic polymers 1%-3%; Anionic surfactants: 10%-30%; Amphoteric surfactants 5%-15%; Thickener: 1-2%; pH adjuster in appropriate amount; Sunscreen 0.5%-1.5%; Preservative 0.5-1.5%; Add deionized water to a concentration of 100%.

2. The oil-controlling shampoo according to claim 1, characterized in that, The anionic surfactant is selected from at least one of fatty alcohol polyether sulfate, monoalkyl sulfate, and fatty acylmethyl taurate.

3. The oil-controlling shampoo according to claim 2, characterized in that, The fatty alcohol polyether sulfate is sodium lauryl ether sulfate.

4. The oil-controlling shampoo according to claim 1, characterized in that, The amphoteric surfactant is selected from at least one of fatty acyl amphoteric acetate, fatty acyl propyl betaine, and fatty amide hydroxypropyl sulfobetaine.

5. The oil-controlling shampoo according to claim 4, characterized in that, The fatty acyl amphoteric acetate is disodium cocoyl amphoteric diacetate.

6. The oil-controlling shampoo according to claim 1, characterized in that, The thickener is sodium chloride.

7. The oil-controlling shampoo according to claim 1, characterized in that, The cationic polymer is at least one of guar gum hydroxypropyltrimethylammonium chloride, cassia gum hydroxypropyltrimethylammonium chloride, and hydroxypropyl guar gum hydroxypropyltrimethylammonium chloride.

8. The oil-controlling shampoo according to claim 1, characterized in that, The light-blocking agent is at least one of ethylene glycol stearate and ethylene glycol distearate.

9. The oil-controlling shampoo according to claim 1, characterized in that, The pH adjuster is at least one of sodium citrate and sodium hydroxide.