A whitening essence lotion and preparation method thereof

Abstract

The present application relates to the field of skin care products, and more specifically, it relates to a whitening essence and a preparation method thereof. A whitening essence comprises: component A: 1‑5% thickener A, 0.5‑3% emulsifier A, 0.01‑0.5% antioxidant, 0.01‑5% skin conditioner; component B: 1‑3% emulsifier B, 1‑4% moisturizer A, 0.01‑1% colorant, water; the colorant comprises at least CI 77891; component C: 1‑5% moisturizer B, 0.1‑1% thickener B; component D: 0.1‑3% thickening mixture; component J: 0.01‑0.1% Ascophyllum nodosum extract; component L: 0.01‑0.1% Prunus serrulata flower extract, 0.01‑0.1% grapefruit peel oil. The whitening essence lotion of the present application does not contain heavy metals, is mild and non-irritating, but can have significant short-term and long-term whitening effects, and can effectively moisturize and improve skin condition.

Description

Technical Field

[0001] The present application relates to the field of skin care products, and more specifically, to a whitening essence lotion and a preparation method thereof. Background Art

[0002] With the rapid development of economy, people are gradually pursuing a healthy and beautiful appearance. Whitening can make the skin look brighter, which is beneficial to improve one's beauty and self-confidence, and can also make people feel younger. Therefore, more consumers have further demand for whitening.

[0003] In the related art, whitening products are increasing, but some of them contain heavy metal components, such as mercury. These heavy metals can reduce the production of melanin by inhibiting the activity and function of melanocytes. Although a relatively obvious whitening effect can be achieved in a short period of time, the skin will become dependent on it. After discontinuation of use, the skin will become darker, spots will appear, and the skin condition will deteriorate, with a series of side effects. Therefore, there is still room for improvement. Summary of the invention

[0004] In order to ensure the whitening effect without using heavy metals, the present application provides a whitening essence and a preparation method thereof.

[0005] In the first aspect, the present application provides a whitening essence lotion, which adopts the following technical solution:

[0006] A whitening essence lotion, comprising the following raw materials in terms of mass percentage:

[0007] Component A: 1-5% thickener A, 0.5-3% emulsifier A, 0.01-0.5% antioxidant, 0.01-5% skin conditioner;

[0008] Thickener A includes at least one of polyglyceryl-3 methyl glucose distearate and cetearyl alcohol;

[0009] Emulsifier A includes at least one of C14-22 alcohol and C12-20 alkyl glucoside;

[0010] The antioxidant is tocopherol;

[0011] The skin conditioning agent is dicaprylyl ether;

[0012] Component B: 1-3% emulsifier B, 1-4% moisturizer A, 0.01-1% colorant; water to make up the balance;

[0013] Emulsifier B includes at least one of cetearyl olivate and sorbitan olivate;

[0014] The moisturizing agent A includes at least one of panthenol, allantoin, and hydrolyzed sodium hyaluronate;

[0015] Colorants include at least CI 77891;

[0016] Component C: 1-5% moisturizer B, 0.1-1% thickener B;

[0017] The humectant B comprises at least glycerin;

[0018] Thickener B includes at least xanthan gum;

[0019] Component D: 0.1-3% thickening mixture;

[0020] Thickening blend includes Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, Water, Squalane, Polysorbate-60, Sorbitan Isostearate;

[0021] Component J: 0.01-0.1% Ascophyllum nodosum extract;

[0022] L component: 0.01-0.1% fine teeth cherry flower extract, 0.01-0.1% grapefruit peel oil.

[0023] By adopting the above technical scheme, the Ascophyllum nodosum extract is combined with the active ingredients of the fine-toothed cherry flower extract and grapefruit peel oil, which can effectively promote the rapid and large-scale action of the Ascophyllum nodosum polysaccharide in the Ascophyllum nodosum extract. The Ascophyllum nodosum polysaccharide acts as a wrapper, wrapping the active ingredients such as the fine-toothed cherry flower extract and grapefruit peel oil to form a special structure, providing a protective film for the active ingredients. This special structure can penetrate into the deep layers of the skin more fully and quickly, providing continuous moisturizing and repairing effects; and this film can also help the active substances to be more firmly adsorbed on the skin, thereby enhancing the retention time and prolonging the duration of action. After the Ascophyllum nodosum polysaccharide on the outermost side of the special structure is absorbed by the skin, the remaining active substances in the fine-toothed cherry flower extract, grapefruit peel oil and Ascophyllum nodosum extract inside can continue to play a role.

[0024] The combination of the above three can effectively activate the biological enzymes in skin cells, accelerate cell division and renewal, thereby promoting the shedding and regeneration of epidermal cells, removing aging keratinocytes, accelerating the metabolism of already formed melanin from the skin surface, avoiding excessive deposition, promoting skin cell metabolism, and enabling the skin to absorb nutrients faster and become whiter and tenderer.

[0025] Moreover, when Ascophyllum nodosum polysaccharide is absorbed by the skin, due to its rich carboxyl and hydroxyl groups, it can fully react with free radicals to reduce the oxidative stress products in the body, thereby reducing the production of melanin; it is also beneficial for whitening the skin.

[0026] The whitening essence of this application does not use heavy metals, but only contains a small amount of titanium dioxide (CI77891), which can make the skin white in a short time without causing any burden on the skin. Then, under the joint action of active ingredients such as Ascophyllum nodosum extract, Prunus serrulata flower extract, and grapefruit peel oil, it improves the skin, promotes metabolism, and replenishes moisture to the skin, making the skin translucent, white, moisturized and elastic.

[0027] Preferably, the mass ratio of the Ascophyllum nodosum extract, the Prunus serrulata flower extract, and the grapefruit peel oil is 1:(3-5):(3-5).

[0028] By adopting the above technical scheme, the mass ratio of Ascophyllum nodosum extract, Prunus tenuifolia flower extract and grapefruit peel oil is further limited, so that a more stable special structure can be formed, thereby giving full play to the effects of moisturizing and whitening.

[0029] Preferably, the whitening essence also includes biosaccharide gum-1 and biosaccharide gum-2.

[0030] Preferably, according to the mass percentage of the whitening essence, biosaccharide gum-1 is 0.01-0.1%, and biosaccharide gum-2 is 0.01-0.1%.

[0031] By adopting the above technical solution, biosaccharide gum-1 and biosaccharide gum-2 can cooperate with the Ascophyllum nodosum extract, so that the outermost membrane structure of the special structure is closer to the skin, quickly penetrates into the skin and is absorbed by the skin.

[0032] Preferably, the whitening essence further comprises 3-o-ethyl ascorbic acid, arbutin and Glycyrrhiza glabra root extract.

[0033] 3-o-ethyl ascorbic acid and arbutin belong to the E component, and the licorice root extract belongs to the F component.

[0034] Preferably, according to the mass percentage of the whitening essence, 3-o-ethyl ascorbic acid is 2-5%, arbutin is 0.1-1%, and Glycyrrhiza glabra root extract is 0.01-0.1%.

[0035] By adopting the above technical solution, 3-o-ethyl ascorbic acid, arbutin, licorice root extract and other raw materials are further added to the whitening essence to enhance the whitening effect. At the same time, due to the formation of a special structure, part of 3-o-ethyl ascorbic acid, arbutin, and licorice root extract can also be wrapped inside, and 3-o-ethyl ascorbic acid, arbutin, and licorice root extract will not contact the skin in large quantities at once, reducing the risk of skin irritation or allergies.

[0036] Preferably, the L component also includes Rosa centifolia flower extract and Guangxi Citrus aurantium peel oil.

[0037] Preferably, the mass ratio of the Rosa centifolia flower extract, Citrus aurantium fruit peel oil, Prunus serrulata flower extract, and Grapefruit fruit peel oil is 1:1:1:1.

[0038] By adopting the above technical scheme, using Rosa centifolia flower extract and Guangxi Mandarin orange peel oil and further limiting the dosage relationship between them and Prunus serrulata flower extract and grapefruit peel oil, the essence can have a pleasant aroma, can better stimulate the olfactory nerves, make people feel pleasant, thereby promoting blood circulation, accelerating the absorption of the essence, thereby promoting the action of active substances on the skin, and improving whitening, moisturizing and other effects.

[0039] Preferably, a whitening essence lotion comprises the following raw materials in terms of mass percentage:

[0040] Component A: 1-5% thickener A, 0.5-3% emulsifier A, 0.01-0.5% antioxidant, 0.01-5% skin conditioner;

[0041] Thickener A includes at least one of polyglyceryl-3 methyl glucose distearate and cetearyl alcohol;

[0042] Emulsifier A includes at least one of C14-22 alcohol and C12-20 alkyl glucoside;

[0043] The antioxidant is tocopherol;

[0044] The skin conditioning agent is dicaprylyl ether;

[0045] Component B: 1-3% emulsifier B, 1-4% moisturizer A, 0.01-1% colorant; water to make up the balance;

[0046] Emulsifier B includes at least one of cetearyl olivate and sorbitan olivate;

[0047] The moisturizing agent A includes at least one of panthenol, allantoin, and hydrolyzed sodium hyaluronate;

[0048] Colorants include at least CI 77891;

[0049] Component C: 1-5% moisturizer B, 0.1-1% thickener B;

[0050] The humectant B comprises at least glycerin;

[0051] Thickener B includes at least xanthan gum;

[0052] Component D: 0.1-3% thickening mixture;

[0053] Thickening blend includes Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, Water, Squalane, Polysorbate-60, Sorbitan Isostearate;

[0054] Component E: 1-4% 3-o-ethyl ascorbic acid, 0.1-1% arbutin, 0.1-1% anti-irritant;

[0055] Component F: 1-4% moisturizer C, 0.01-0.1% licorice root extract;

[0056] The humectant C comprises at least 1,3-propylene glycol;

[0057] Component G: 0.1-1% preservative; the preservative includes p-hydroxyacetophenone, 1,2-hexanediol, and caprylyl glycol;

[0058] H component: 0.9-4.6% moisturizing mixture;

[0059] According to the mass percentage of the whitening essence, the moisturizing mixture includes 0.8-4.4% water, 0.01-0.07% glycerin, 0.01-0.05% biosaccharide gum-1, 0.001-0.03% sodium levulinate, 0.001-0.02% glyceryl caprylate, and 0.001-0.008% p-anisic acid;

[0060] Component I: 0.1-2% soothing agent;

[0061] According to the mass percentage of the whitening essence, the soothing agent includes 0.5-1.5% water, 0.01-0.05% biosaccharide gum-2, and 0.01-0.03% phenoxyethanol;

[0062] Component J: 0.01-0.1% Ascophyllum nodosum extract, 0.1-1% water, 0.0001-0.001% citric acid, 0.0001-0.001% potassium sorbate;

[0063] Component K: 0.1-1% moisturizer D;

[0064] According to the mass percentage of the whitening essence, the moisturizer D includes 0.1-0.5% xylitol glucoside, 0.1-0.3% anhydroxylitol, 0.01-0.1% xylitol, and 0.01-0.1% water;

[0065] Component L: 0.01-0.1% Prunus serrulata flower extract, 0.01-0.1% Grapefruit peel oil, 0.01-0.1% Rosa centifolia flower extract, 0.01-0.1% Guangxi Mandarin orange peel oil.

[0066] In a second aspect, the present application provides a method for preparing a whitening essence lotion, using the following technical solution:

[0067] Step 1: Heat the raw materials of component A to 70-80°C and mix until uniform to obtain component A;

[0068] Step 2: fully mix the raw materials of component C to obtain component C; mix component C and the raw materials of component B until uniform to obtain component BC, and heat to 70-80°C;

[0069] Step 3: Mix component A and component BC at 70-80°C, stir and mix until uniform, to obtain component ABC; Step 4: Mix the raw material of component D with component ABC at 60-70°C until uniform, to obtain component ABCD;

[0070] Step 5: Mix the remaining raw materials with components ABCD until uniform to obtain whitening essence.

[0071] Preferably, the present application provides a method for preparing a whitening essence lotion, using the following technical solution:

[0072] Step 1: Heat the raw materials of component A to 70-80°C and mix until uniform to obtain component A;

[0073] Step 2: fully mix the raw materials of component C to obtain component C; mix component C and the raw materials of component B until uniform to obtain component BC, and heat to 70-80°C;

[0074] Step 3: Mix component A and component BC at 70-80°C, and stir at 2800r / min until uniform, to obtain component ABC;

[0075] Step 4: Mix the raw materials of component D and component ABC at 60-70°C until uniform, to obtain component ABCD; continue stirring until the temperature drops to 40-45°C.

[0076] Step 5: Fully dissolve the raw material of component E, fully dissolve the raw material of component F, and fully dissolve the raw material of component G to obtain component E, component F, and component G.

[0077] Step 6: While stirring, add component E, component F, component G, component H, component I, component J, component K, and component L to component ABCD in sequence until the mixture is evenly stirred.

[0078] In summary, this application has the following beneficial effects:

[0079] 1. The essence of the present application does not use heavy metals. First, a small amount of titanium dioxide is used to quickly whiten the skin. Then, raw materials such as Ascophyllum nodosum extract, Prunus serrulata flower extract, and grapefruit peel oil are used together to nourish the skin, promote metabolism, and reduce melanin production and deposition, thereby achieving a significant whitening effect.

[0080] 2. This application uses Ascophyllum nodosum extract, Prunus serrulata flower extract, and grapefruit peel oil to form a special wrapping structure, providing a protective film for the active ingredients; this film has a good skin-friendly effect, which can make the essence quickly absorbed by the skin, and the active ingredients penetrate into the skin to achieve good hydrating, whitening and firming effects. DETAILED DESCRIPTION

[0081] The present application is further described in detail below with reference to the embodiments.

[0082] The raw materials used in the following examples and comparative examples are all commercially available products.

[0083] Example

[0084] Example 1

[0085] A whitening essence comprising the following ingredients:

[0086] Component A: thickener A, emulsifier A, antioxidant, skin conditioning agent.

[0087] Thickener A is polyglyceryl-3 methyl glucose distearate and cetearyl alcohol.

[0088] Emulsifier A is C14-22 alcohol, C12-20 alkyl glucoside.

[0089] The antioxidant is tocopherol.

[0090] The skin conditioning agent is dicaprylyl ether.

[0091] Component B: emulsifier B, moisturizer A, colorant, water.

[0092] Emulsifier B is cetearyl olivate and sorbitan olivate.

[0093] Moisturizer A is panthenol, allantoin, and hydrolyzed sodium hyaluronate.

[0094] The colorant is CI 77891.

[0095] Component C: humectant B, thickener B.

[0096] Humectant B is glycerin.

[0097] Thickener B is xanthan gum.

[0098] Component D: thickens the mixture.

[0099] Thickening blend is Hydroxyethyl Acrylate / Sodium Acryloyldimethyl Taurate Copolymer, Water, Squalane, Polysorbate 60, Sorbitan Isostearate.

[0100] Component E: 3-o-ethyl ascorbic acid, arbutin, anti-irritant.

[0101] Component F: moisturizer C, Glycyrrhiza glabra root extract.

[0102] Humectant C is 1,3-propylene glycol.

[0103] Component G: preservative.

[0104] The preservatives are p-hydroxyacetophenone, 1,2-hexanediol and caprylyl glycol.

[0105] H component: moisturizing mixture.

[0106] The moisturizing blend includes water, glycerin, biosaccharide gum-1, sodium levulinate, glyceryl caprylate, and p-anisic acid.

[0107] Component I: Soothing agent.

[0108] Soothing agents include water, biosaccharide gum-2, and phenoxyethanol.

[0109] Component J: Ascophyllum nodosum extract, water, citric acid, potassium sorbate.

[0110] Component K: moisturizer D.

[0111] The humectant D includes xylitol glucoside, anhydroxylitol, xylitol, and water.

[0112] L component: ROSA CENTIFOLIA flower extract, CITRUS NOBILIS peel oil, PRUNUS SERRULATA flower extract, CITRUS PARADISI peel oil.

[0113] The present application also discloses a method for preparing a whitening essence, comprising the following steps:

[0114] Step 1: Heat the raw materials of component A to 70-80°C and mix until uniform to obtain component A.

[0115] Step 2: Fully mix the raw materials of component C to obtain component C; add component C to the raw materials of component B and mix until uniform to obtain component BC; heat to 70-80° C. and let stand.

[0116] Step 3: At 70-80°C, add component A to component BC and mix them. Stir and mix them at 2800 r / min until they are uniform to obtain component ABC.

[0117] Step 4: Add the raw materials of component D to components ABC at 60-70°C and mix until uniform to obtain components ABCD; continue stirring until the temperature drops to 40-45°C.

[0118] Step 5: Fully dissolve the raw material of component E, fully dissolve the raw material of component F, and fully dissolve the raw material of component G to obtain component E, component F, and component G.

[0119] Step 6: While stirring, add component E, component F, component G, component H, component I, component J, component K, and component L to component ABCD in sequence until the mixture is evenly stirred.

[0120] Example 2

[0121] A whitening essence lotion, which is different from Example 1 in that the specific amounts of the raw materials are different, see Table 1 for details.

[0122] A method for preparing a whitening essence lotion, which is different from that in Example 1,

[0123] Step 1 is heated to 70°C; Step 1 is heated to 70°C; Step 3 is carried out at 70°C; Step 4 is carried out by mixing the raw materials of component D with components ABC at 60°C, and then stirring and cooling to 40°C.

[0124] Example 3

[0125] A whitening essence lotion, which is different from Example 1 in that the specific amounts of the raw materials are different, see Table 1 for details.

[0126] A method for preparing a whitening essence lotion, which is different from that in Example 1,

[0127] Step 1 is heated to 80°C; Step 1 is heated to 80°C; Step 3 is carried out at 80°C; Step 4 is carried out by mixing the raw materials of component D with components ABC at 70°C, and then stirring and cooling to 45°C.

[0128] Example 4

[0129] A whitening essence, which is different from Example 1 in that the mass ratio of the Ascophyllum nodosum extract, the Prunus serrulata flower extract, and the grapefruit peel oil is 1:3:5, that is, the Ascophyllum nodosum extract is 0.016 kg, the Prunus serrulata flower extract is 0.048 kg, and the grapefruit peel oil is 0.08 kg.

[0130] Example 5

[0131] A whitening essence, which is different from Example 1 in that the mass ratio of the Ascophyllum nodosum extract, the Prunus serrulata flower extract, and the grapefruit peel oil is 1:5:3, that is, the Ascophyllum nodosum extract is 0.016 kg, the Prunus serrulata flower extract is 0.08 kg, and the grapefruit peel oil is 0.048 kg.

[0132] Example 6

[0133] A whitening essence lotion, which is different from Example 1 in that the whitening essence lotion does not contain biosaccharide gum-1 and biosaccharide gum-2. The specific dosage is shown in Table 1.

[0134] Example 7

[0135] A whitening essence lotion, which is different from Example 1 in that the whitening essence lotion does not contain 3-o-ethyl ascorbic acid, arbutin and Glycyrrhiza glabra root extract. Specific dosages are shown in Table 1.

[0136] Example 8

[0137] A whitening essence lotion, which is different from Example 1 in that the whitening essence lotion does not contain Rosa centifolia flower extract and Guangxi Citrus aurantium peel oil.

[0138] Table 1

[0139]

[0140]

[0141]

[0142]

[0143]

[0144] Comparative Example

[0145] Comparative Example 1

[0146] A whitening essence lotion, which is different from Example 1 in that the Ascophyllum nodosum extract is replaced by Tremella fuciformis extract.

[0147] Comparative Example 2

[0148] A whitening essence lotion, which is different from Example 1 in that the Prunus serrulata flower extract is replaced by a lavender (LAVANDULA ANGUSTIFOLIA) flower extract.

[0149] Comparative Example 3

[0150] A whitening essence lotion, which is different from Example 1 in that grapefruit peel oil is replaced by orange (CITRUS SPP.) peel oil.

[0151] Comparative Example 4

[0152] A whitening essence lotion, which is different from Example 1 in that the extract of Ascophyllum nodosum is 0.14 kg, the extract of Prunus serrulata is 0.001 kg, and the extract of grapefruit peel oil is 0.003 kg.

[0153] Performance testing

[0154] 1. Volunteer selection: 120 female volunteers aged 25-35 were selected and divided into 12 groups, with 10 people in each group, and each group corresponded to a whitening essence lotion of Examples 1-8 and Comparative Examples 1-4, respectively.

[0155] The volunteers had no allergic diseases, no history of allergies to cosmetics or other topical preparations; no history of photosensitivity diseases, and no recent use of photosensitizing drugs.

[0156] Exclusion criteria: pregnant or lactating women, or those who are planning to get pregnant in the near future;

[0157] Those with a history of skin diseases such as psoriasis, eczema, atopic dermatitis, severe acne, etc.

[0158] Those who have taken oral or topical corticosteroids or other anti-inflammatory drugs in the past month;

[0159] Those who have taken any products or drugs that affect skin color (such as hydroquinone preparations) orally or externally in the past 2 months;

[0160] Participants who have participated in similar tests within the past three months or participated in similar tests three months ago, but the black marks on the skin at the test site have not completely faded;

[0161] Participated in other clinical trials in the past 2 months;

[0162] Other patients deemed unsuitable for trial participation by clinical assessment.

[0163] 2. Test method:

[0164] Clean the face with clean water, then take 2 mL of the corresponding whitening essence of Examples 1-8 and Comparative Examples 1-4 and evenly apply it on the face, and leave it for 20 minutes.

[0165] The test was conducted in an environment of 25°C and 55% humidity.

[0166] 3. Test items:

[0167] 1. Short-term whitening: After the volunteers cleaned their faces with water, a skin colorimeter was used to test the L * 、a* 、b * For numerical values, the forehead, cheeks, nose tip, and chin areas were tested three times, and the initial ITA° values ​​were recorded and calculated.

[0168] After applying the whitening essence and letting it sit for 20 minutes, test again to obtain the ITA° value after use.

[0169] The short-term whitening improvement rate was calculated according to the following formula, and the average of the short-term whitening improvement rates of the volunteers in the same group was taken as the data for this group and recorded in Table 2.

[0170] 2. Long-term whitening: Volunteers should use the corresponding whitening essence once in the morning and once in the evening after cleansing their faces with water for 28 days.

[0171] At 28 days, test again and obtain the ITA° value of 28 days.

[0172] The long-term whitening improvement rate was calculated according to the following formula, and the average of the long-term whitening improvement rates of the volunteers in the same group was taken as the data for this group and recorded in Table 2.

[0173] 3. Hydration:

[0174] After the volunteers cleaned their faces with clean water, a skin moisture tester was used to test the moisture content of the volunteers' faces. The forehead, cheeks, nose, and chin areas were tested three times, and the initial moisture content was recorded.

[0175] After cleansing their faces with water in the morning and evening, the volunteers used the corresponding whitening essence lotion once for 28 days.

[0176] At 28 days, test again to obtain the 28-day moisture content.

[0177] The water replenishment rate was calculated according to the following formula, and the average water replenishment rate of the volunteers in the same group was taken as the data for this group and recorded in Table 2.

[0178] 4. Sensory evaluation: Questionnaires were distributed to the volunteers, asking whether they felt any discomfort, irritation, and whitening and brightening effects after using the whitening essence. Scores were given on a scale of 0-10. The closer to 10, the less discomfort, less irritation, and significant whitening and brightening effects in the short term and long term. The average scores of the volunteers in the same group were recorded in Table 2.

[0179] Table 2

[0180]

[0181] According to the comparison of the test data of Examples 1-8 and Comparative Examples 1-4 in Table 2, it can be seen that the volunteers using Examples 1-8 have more obvious improvement effects in short-term whitening, long-term whitening, moisturizing, etc. than Comparative Examples 1-4. It is explained that the whitening essence provided by the present application, under the cooperation of Ascophyllum nodosum extract, Prunus serrulata flower extract and grapefruit peel oil, forms a special structure that can quickly penetrate into the skin and make the skin absorb and utilize active substances as much as possible, thereby making the skin white and translucent. Comparative Examples 1-3 omit any of Ascophyllum nodosum extract, Prunus serrulata flower extract and grapefruit peel oil on the basis of Example 1, and the whitening essence obtained cannot form a specific structure, resulting in an insignificant whitening effect. Although Comparative Example 4 retains the combination of Ascophyllum nodosum extract, Prunus serrulata flower extract and grapefruit peel oil, it destroys the dosage coordination effect between the three, so that the performance of the generated special structure is very poor and cannot play a special role. This shows that the Ascophyllum nodosum extract, Prunus serrulata flower extract and grapefruit peel oil need to be maintained in specific dosages and selected for combination in order to play an ideal role in the system.

[0182] Example 6 is based on Example 1, without using Biosaccharide Gum-1 and Biosaccharide Gum-2. The use of Biosaccharide Gum-1 and Biosaccharide Gum-2 can enhance the penetration of the whitening essence into the skin and optimize the outermost membrane structure of the special structure. Therefore, the whitening and moisturizing effects of the whitening essence of Example 6 are reduced. This is also because the absorption speed and absorption effect of the skin are reduced after not using Biosaccharide Gum-1 and Biosaccharide Gum-2.

[0183] Example 7 is based on Example 1, but 3-o-ethyl ascorbic acid, arbutin and Glycyrrhiza glabra root extract are not used. The whitening effect of Example 7 is slightly lower than that of Example 1, but not too obvious, indicating that the combination of Ascophyllum nodosum extract, Prunus serrulata flower extract and grapefruit peel oil can exert a good whitening effect.

[0184] Example 8 is based on Example 1, but omits Rosa centifolia flower extract and Guangxi Mandarin orange peel oil. The long-term whitening effect of Example 8 is slightly weaker than that of Example 1.

[0185] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed. However, as long as it is within the scope of the claims of the present application, it shall be protected by the patent law.

Claims

1. A whitening essence, characterized in that: In terms of mass percentage, it includes the following raw materials: Component A: 1-5% thickener A, 0.5-3% emulsifier A, 0.01-0.5% antioxidant, 0.01-5% skin conditioner; Component B: 1-3% emulsifier B, 1-4% moisturizer A, 0.01-1% colorant; water to make up the balance; Colorants include CI 77891; Component C: 1-5% moisturizer B, 0.1-1% thickener B; Component D: 0.1-3% thickening mixture; Component J: 0.01-0.1% Ascophyllum nodosum extract; L component: 0.01-0.1% fine-toothed cherry flower extract, 0.01-0.1% grapefruit peel oil; The whitening essence lotion also includes biosaccharide gum-1 and biosaccharide gum-2; The whitening essence also includes 3-o-ethyl ascorbic acid, arbutin and licorice root extract; The mass ratio of the Ascophyllum nodosum extract, the Prunus serrulata flower extract, and the grapefruit peel oil is 1:(3-5):(3-5); According to the mass percentage of the whitening essence, biosaccharide gum-1 is 0.01-0.05%, and biosaccharide gum-2 is 0.01-0.05%.

2. The whitening essence lotion according to claim 1, characterized in that: According to the mass percentage of the whitening essence, 3-o-ethyl ascorbic acid is 2-5%, arbutin is 0.1-1%, and Glycyrrhiza glabra root extract is 0.01-0.1%.

3. The whitening essence according to claim 1, characterized in that: The L component also includes Rosa centifolia flower extract and Guangxi Citrus aurantium peel oil.

4. The whitening essence according to claim 3, characterized in that: The mass ratio of the Rosa centifolia flower extract, the Guangxi Mandarin orange peel oil, the Prunus serrulata flower extract, and the grapefruit peel oil is 1:1:1:

1.

5. A method for preparing the whitening essence according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Heat the raw materials of component A to 70-80°C and mix until uniform to obtain component A; Step 2: fully mix the raw materials of component C to obtain component C; mix component C and the raw materials of component B until uniform to obtain component BC, and heat to 70-80°C; Step 3: Mix component A and component BC at 70-80°C, and stir until uniform to obtain component ABC; Step 4: Mix the raw materials of component D and component ABC at 60-70° C. until uniform, to obtain component ABCD; Step 5: Mix the remaining raw materials with components ABCD until uniform to obtain whitening essence.

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