A soothing pain-relieving type scraping gel and a preparation method thereof

Abstract

The application provides a soothing pain-relieving scraping gel and a preparation method thereof, and belongs to the field of traditional Chinese medicine external treatment nursing supplies. In order to solve the defects of the existing scraping medium, such as greasy and difficult to clean, poor experience in head use, and weak targeting effect on headache, the application adopts an oil phase compounded by MCT oil and volatile silicone oil, a traditional Chinese medicine formula of Szechwan lovage rhizome, Baizhi and menthol, and a water-in-oil microemulsion system thickened by carbomer and xanthan gum; the formula comprises four components of water phase, oil phase, traditional Chinese medicine and preservative. The prepared finished product is lubricating and refreshing, the dry paper can be directly wiped, is suitable for head scraping, is mild and low in stimulation, and can relieve headache along Yangming meridian; the matching preparation process parameters are controllable, and the product does not separate and analyze oil during long-term storage.

Description

Technical Field

[0001] This invention belongs to the technical field of external treatment and nursing products in traditional Chinese medicine; in particular, it relates to a meridian-clearing, pain-relieving, and refreshing scraping gel and its preparation method. Background Technology

[0002] Gua sha therapy is a traditional Chinese medicine external treatment method that uses scraping and rubbing on the body surface to unblock meridians, promote blood circulation, remove blood stasis, and regulate qi. Currently, gua sha on the head along meridians is widely used clinically to relieve headaches, improve sleep, and regulate nerve function, and is a routine TCM nursing method.

[0003] Currently available gua sha media are divided into two categories: traditional gua sha oil and gua sha lotion / gel.

[0004] (1) Traditional gua sha oil uses vegetable oil and mineral oil as the base, which has a decent lubricating effect, but it is thick and greasy, staining hair, clothes and sheets. A lot of washing and conditioning products are needed to clean it, and the head experience is extremely poor.

[0005] (2) Most of the common gua sha gels on the market are oil-in-water systems, which are not refreshing enough and lack special Chinese medicine formulations for headaches, resulting in weak efficacy.

[0006] (3) Conventional thickening systems use only carbomer or xanthan gum. The gel network formed by a single colloid has poor stability and is prone to separation and oil separation during long-term storage.

[0007] (4) The scalp is thin and the hair is dense, so the requirements for the medium are strict: it needs to be low friction and high lubrication, without sticky residue, and can be wiped clean. At the same time, it should have the effect of relieving headaches by clearing the meridians and relieving pain. Existing products cannot meet all of the above requirements at the same time.

[0008] Therefore, the industry urgently needs a water-in-oil type gua sha gel that is smooth, refreshing to the skin, easy to wipe clean, has a stable system, and is specifically effective for headaches. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing scraping media, such as being greasy and difficult to clean, unsuitable for head scraping, weak analgesic effect, and easy oil separation in the system. It provides a refreshing scraping gel for clearing the meridians, relieving pain, and its preparation method. The product has high lubricity, can be wiped off with dry paper after scraping without residue, is suitable for head scraping, and is combined with traditional Chinese medicine components to synergistically relieve blood stasis and wind-cold type headache. The system is stable in the long term and has low skin irritation.

[0010] This invention is achieved through the following technical solution:

[0011] This invention relates to a meridian-clearing, pain-relieving, and refreshing scraping gel. The scraping gel is an oil-in-water gel suitable for scalp scraping along meridians, comprising four components: A-phase aqueous matrix, B-phase oil lubricating components, C-phase traditional Chinese medicine active ingredients, and D-phase preservative and stabilizing components. The composition of each component by weight percentage is as follows:

[0012] Phase A: Purified water to 100%, glycerol 5.0%–8.0%, propylene glycol 2.0%–4.0%, panthenol 0.3%–0.8%, carbomer 940 0.4%–0.7%, xanthan gum 0.1%–0.2%, triethanolamine 0.4%–0.7%;

[0013] Phase B: Caprylic / Capric triglycerides 1.5%–2.5%, Cyclopentasiloxane 1.0%–2.0%, Cetyl ethylhexanoate 0.5%–1.0%, Glyceryl stearate SE 0.8%–1.2%;

[0014] Phase C: Ligusticum chuanxiong extract 0.5%–1.2%, Angelica dahurica extract 0.4%–1.0%, Menthol 0.1%–0.3%, Borneol 0.05%–0.15%;

[0015] Phase D: Phenoxyethanol 0.4%–0.6%, Ethylhexylglycerol 0.05%–0.10%, Limonene 0.02%–0.05%.

[0016] Preferably, the preferred proportions of each phase, by weight percentage, are as follows:

[0017] Phase A: Purified water 79.45%, glycerol 6.5%, propylene glycol 3.0%, panthenol 0.5%, carbomer 940 0.5%, xanthan gum 0.15%, triethanolamine 0.55%;

[0018] Phase B: Caprylic / Capric Triglyceride 2.0%, Cyclopentasiloxane 1.5%, Cetyl Ethylhexanoate 0.7%, Glyceryl Stearate SE 1.0%;

[0019] Phase C: Ligusticum chuanxiong extract 0.8%, Angelica dahurica extract 0.7%, Menthol 0.2%, Borneol 0.1%;

[0020] Phase D: Phenoxyethanol 0.5%, Ethylhexylglycerol 0.08%, Limonene 0.03%.

[0021] Preferably, the scraping gel is an oil-in-water microemulsion gel system with a pH value controlled between 5.5 and 7.0.

[0022] Preferably, the carbomer 940 is compounded with xanthan gum to form a three-dimensional gel network, and the glyceryl stearate SE is used as an oil-in-water emulsifier to disperse and stabilize the oil phase droplets.

[0023] Preferably, phase B contains a compound oil of caprylic / capric triglyceride and cyclopentamethoxysiloxane; wherein the cyclopentamethoxysiloxane is a volatile silicone oil.

[0024] Preferably, the C-phase herbal active ingredients are composed of a compound of Ligusticum chuanxiong extract, Angelica dahurica extract, menthol, and borneol.

[0025] This invention also relates to a method for preparing the aforementioned meridian-clearing, pain-relieving, and refreshing scraping gel, comprising the following steps:

[0026] Step (1), A phase preparation: Glycerin, propylene glycol and panthenol are added sequentially under stirring with purified water to dissolve, and carbomer 940 and xanthan gum are added and stirred until completely swollen and free of particles;

[0027] Step (2), B phase preparation: Mix the oil phase raw materials and heat to 75-80℃, stirring until transparent;

[0028] Step (3), initial emulsification: Slowly add phase B to phase A, keep warm at 70-75℃, and homogenize at high speed for 2-3 minutes;

[0029] Step (4), cooling and neutralization: cool to below 45°C, add triethanolamine to adjust pH to 5.5-7.0 to obtain gel matrix;

[0030] Step (5), add phase C efficacy components: add Ligusticum chuanxiong extract, Angelica dahurica extract, menthol and borneol in sequence and stir well;

[0031] Step (6), post-processing: cool down to below 38℃, add D phase component, stir, let stand to degas, filter and discharge.

[0032] Preferably, in step (3), the homogenization temperature is 70-75°C and the homogenization time is controlled to be 2-3 minutes.

[0033] Preferably, in step (6), the filtration is performed using a 100-mesh filter, and the defoaming and standing time is not less than 30 minutes.

[0034] Preferably, the scraping gel is used for scraping along the meridians of the head to help relieve headaches caused by the Yangming meridian, such as migraines, tension headaches, and nasal headaches.

[0035] The present invention has the following advantages:

[0036] (1) Both lubrication and refreshing: MCT oil (caprylic / capric triglyceride) is combined with volatile cyclopentamethoxysiloxane compound oil phase; MCT oil provides a long-lasting smooth scraping feel, and silicone oil evaporates naturally during scraping, greatly reducing the oily residue on the skin and hair; under the same scraping force, the amount of oil residue is reduced by 78% compared with traditional scraping oil; the whole is a water-in-oil microemulsion structure, which is lighter and thinner on the skin than traditional pure oil scraping medium, without a heavy and sticky feeling.

[0037] (2) Clean and convenient, suitable for head scraping: The water phase is the continuous external phase, and the oil phase is dispersed in micron-level droplets; after scraping, it can be wiped directly with dry paper towel or dry towel, without the need for water washing, makeup remover, or cleaning agent, and will not contaminate hair, pillowcase, or clothes, perfectly suitable for head scraping scenarios; there is no visible oil film residue after wiping.

[0038] (3) Targeted relief of headache by combination of Chinese medicine: Following the theory of "the head is the meeting place of all yang" in Chinese medicine, Chuanxiong and Baizhi are the principal herbs, which can promote blood circulation, dispel wind, open the orifices and relieve pain; Menthol and Borneol are the adjuvant herbs, which can cool and penetrate the skin, open the orifices and refresh the mind; The four components work together to have a significant effect of clearing the meridians and relieving pain in migraine and headache caused by wind-cold and blood stasis; The effective rate of headache relief after a single scraping treatment in 20 clinical subjects was 90%, which was enhanced by the physical dredging effect of scraping the head.

[0039] (4) Excellent system stability: Carbomer 940 and xanthan gum are combined to construct a three-dimensional gel network, and glyceryl stearate SE is used as a special oil-in-water emulsifier to lock in the oil phase; after 6 months of accelerated stability testing at 40℃±2℃ and 75%±5% relative humidity, the product showed no stratification, no oil separation, no discoloration, no odor, and had a uniform texture; after 12 months of storage at room temperature away from light, there was no change in appearance.

[0040] (5) Mild and low irritation, suitable for human skin: The formula does not contain mineral oil or high viscosity vegetable oil; the pH of the system is controlled at 5.5 to 7.0, matching the physiological acid-base value of human skin; the dosage of Chinese medicine efficacy components and preservative components is controlled within the safe and effective range; no redness, swelling, itching, stinging or other irritation reactions were observed in the 48-hour human closed patch test, and it can also be used for a long time on thin and delicate scalp. Detailed Implementation

[0041] The present invention will now be described in detail with reference to specific embodiments. It should be noted that the following embodiments are merely further illustrations of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.

[0042] Example 1

[0043] This embodiment relates to a refreshing and pain-relieving scraping gel for clearing the meridians:

[0044] Raw material specifications

[0045] (1) Extracts, Angelica dahurica extract: prepared by water extraction and alcohol precipitation, the active ingredients are volatile oils and coumarins, cosmetic grade extracts;

[0046] (2) Caprylic / capric triglyceride (MCT oil), cyclopentamethoxysiloxane, cetyl ethylhexanoate: cosmetic grade moisturizing oil;

[0047] (3) Glyceryl stearate SE: a nonionic emulsifier for oil-in-water applications;

[0048] (4) Carbomer 940 and xanthan gum: cosmetic grade thickening colloids;

[0049] (5) Menthol, borneol, phenoxyethanol, ethylhexylglycerin, limonene: cosmetic grade pharmaceutical excipients, in compliance with the "Cosmetic Safety Technical Specifications".

[0050] 1. Raw material ratio (by weight percentage)

[0051] Phase A: Purified water 79.45%, glycerol 6.5%, propylene glycol 3.0%, panthenol 0.5%, carbomer 940 0.5%, xanthan gum 0.15%, triethanolamine 0.55%;

[0052] Phase B: Caprylic / Capric Triglyceride 2.0%, Cyclopentasiloxane 1.5%, Cetyl Ethylhexanoate 0.7%, Glyceryl Stearate SE 1.0%;

[0053] Phase C: Ligusticum chuanxiong extract 0.8%, Angelica dahurica extract 0.7%, Menthol 0.2%, Borneol 0.1%;

[0054] Phase D: Phenoxyethanol 0.5%, Ethylhexylglycerol 0.08%, Limonene 0.03%.

[0055] 2. Preparation steps

[0056] Step (1), A phase preparation: Add purified water to the emulsification kettle (Huxi HR-2L), add glycerol, propylene glycol and panthenol in sequence under low speed stirring, after dissolving, slowly sprinkle carbomer 940 and xanthan gum, stir for 25 min until completely swollen and free of particles;

[0057] Step (2), B phase preparation: Mix all oil phase raw materials, heat to 78°C and stir until clear and transparent;

[0058] Step (3), initial emulsification: phase B is dripped into phase A at a uniform rate, kept at 72℃, and homogenized at high speed for 2.5 min;

[0059] Step (4): Cool to 42°C, add triethanolamine to neutralize, pH is measured to be 6.2, and a gel is formed;

[0060] Step (5): Add chuanxiong extract, angelica extract, menthol, and borneol and stir for 10 minutes until homogeneous;

[0061] Step (6): Cool down to 35°C, add all raw materials of phase D and stir for 5 minutes; let stand to degas for 30 minutes, and filter out the material through a 100-mesh filter.

[0062] The reasons for limiting the above-mentioned preparation process parameter ranges are as follows:

[0063] (1) When phase B is heated below 75°C: the oil and emulsifier do not dissolve completely and particles are easily formed; when heated above 80°C: menthol and borneol evaporate prematurely and lose efficacy.

[0064] (2) Emulsification and heat preservation below 70℃: insufficient emulsification, short-term storage and stratification; above 75℃: high temperature degradation of active ingredients in traditional Chinese medicine;

[0065] (3) Neutralization temperature above 45℃: Triethanolamine accelerates the volatilization of borneol at high temperatures, reducing the analgesic effect.

[0066] 3. Product performance testing

[0067] Skin feel: Smooth application to the head, no resistance when scraping, and no oily residue when wiped with a tissue after use;

[0068] Stability: No stratification or oil separation was observed after 6 months of accelerated testing;

[0069] Efficacy: In a study of 20 migraine sufferers, 90% of those who underwent scalp scraping therapy experienced headache relief after a single session.

[0070] Irritation: No redness or itching was observed in human patch tests after 48 hours.

[0071] 4. Judgment basis

[0072] Stability assessment criteria: Visually inspect for layering, floating oil, discoloration, and unusual odors;

[0073] Criteria for determining skin irritation: Based on the "Specifications for Skin Irritation Testing of Cosmetics";

[0074] Headache relief criteria: The Numerical Rating Scale (NRS) was used. A decrease in pain score of ≥3 after scraping was considered effective.

[0075] Example 2

[0076] This embodiment relates to a refreshing and pain-relieving scraping gel for clearing the meridians:

[0077] 1. Raw material ratio (by weight percentage)

[0078] Phase A: Purified water 83.03%, glycerol 5.0%, propylene glycol 2.0%, panthenol 0.3%, carbomer 940 0.4%, xanthan gum 0.1%, triethanolamine 0.4%;

[0079] Phase B: Caprylic / Capric Triglyceride 1.5%, Cyclopentasiloxane 1.0%, Cetyl Ethylhexanoate 0.5%, Glyceryl Stearate SE 0.8%;

[0080] Phase C: Ligusticum chuanxiong extract 0.5%, Angelica dahurica extract 0.4%, Menthol 0.1%, Borneol 0.05%;

[0081] Phase D: Phenoxyethanol 0.4%, Ethylhexylglycerol 0.05%, Limonene 0.02%.

[0082] 2. Preparation method: Same as in Example 1, homogenization time 2 min, pH 5.6 after neutralization.

[0083] 3. Product performance test: The lubrication is moderate, the refreshing feeling meets the standard, the pain relief effect is gentle, the system is stable, and it is suitable for daily health care scraping for people with sensitive scalps.

[0084] 4. Judgment basis

[0085] Stability assessment criteria: Visually inspect for layering, floating oil, discoloration, and unusual odors;

[0086] Criteria for determining skin irritation: Based on the "Specifications for Skin Irritation Testing of Cosmetics";

[0087] Headache relief criteria: The Numerical Rating Scale (NRS) was used. A decrease in pain score of ≥3 after scraping was considered effective.

[0088] Example 3

[0089] This embodiment relates to a refreshing and pain-relieving scraping gel for clearing the meridians:

[0090] 1. Raw material ratio (by weight percentage)

[0091] Phase A: Purified water 74.65%, glycerol 8.0%, propylene glycol 4.0%, panthenol 0.8%, carbomer 940 0.7%, xanthan gum 0.2%, triethanolamine 0.7%;

[0092] Phase B: Caprylic / Capric Triglyceride 2.5%, Cyclopentasiloxane 2.0%, Cetyl Ethylhexanoate 1.0%, Glyceryl Stearate SE 1.2%;

[0093] Phase C: Ligusticum chuanxiong extract 1.2%, Angelica dahurica extract 1.0%, Menthol 0.3%, Borneol 0.15%;

[0094] Phase D: Phenoxyethanol 0.6%, Ethylhexylglycerol 0.10%, Limonene 0.05%.

[0095] 2. The preparation method is the same as in Example 1. Homogenize for 3 min and neutralize to pH 6.8.

[0096] 3. Product performance test: It has stronger lubrication performance, outstanding effects of traditional Chinese medicine in promoting blood circulation and relieving pain, and is suitable for clinical scraping use for people with moderate to severe headaches. It also maintains excellent wiping and cleaning performance.

[0097] 4. Judgment basis

[0098] Stability assessment criteria: Visually inspect for layering, floating oil, discoloration, and unusual odors;

[0099] Criteria for determining skin irritation: Based on the "Specifications for Skin Irritation Testing of Cosmetics";

[0100] Headache relief criteria: The Numerical Rating Scale (NRS) was used. A decrease in pain score of ≥3 after scraping was considered effective.

[0101] Comparative Example 1

[0102] Comparative Example 1 involves traditional sesame oil gua sha oil: the base is 100% sesame oil, with no Chinese herbal ingredients; after gua sha on the head, the hair is sticky, there is obvious residue after wiping with a tissue, and it needs to be washed with shampoo. It has no cooling and soothing effect, and it is prone to oxidation and rancidity after being stored for 1 month.

[0103] Comparative Example 2 (Common commercially available water-in-oil gua sha gel, without volatile silicone oil or special Chinese herbal formula)

[0104] The oil phase contains only a single vegetable oil and is free of cyclopentamethoxysiloxane; it is free of Ligusticum chuanxiong and Angelica dahurica; it leaves a noticeable sticky feeling after scraping, has a weak effect on relieving headaches, and is prone to slight oil separation during long-term storage.

[0105] Comparative Example 3: The formulation is the same as in Example 1, except that cyclopentamethoxysiloxane is removed and replaced with an equal amount of caprylic / capric triglyceride; the other raw materials and preparation process remain unchanged.

[0106] Results: After shaving, there was obvious oil residue in the hair, and an oil film remained after wiping with a dry tissue. The hair felt much less clean, and slight oil separation occurred after 3 months.

[0107] Comparative Example 4: The formula is the same as in Example 1, except that the extracts of Ligusticum chuanxiong and Angelica dahurica are removed, while the remaining components and processes remain unchanged.

[0108] Results: The cooling sensation after scraping only lasted for 10 minutes, and the effective rate of headache relief in the subjects was only 40%, with no long-lasting effect of clearing the meridians and relieving pain.

[0109] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A refreshing and pain-relieving scraping gel, wherein the scraping gel is an oil-in-water gel suitable for scraping along the meridians of the head, comprising four components: A-phase aqueous matrix component, B-phase oil lubricating component, C-phase traditional Chinese medicine efficacy component, and D-phase antiseptic and stabilizing component; characterized in that, The composition of each component, by weight percentage, is as follows: Phase A: Purified water to 100%, glycerol 5.0%–8.0%, propylene glycol 2.0%–4.0%, panthenol 0.3%–0.8%, carbomer 940 0.4%–0.7%, xanthan gum 0.1%–0.2%, triethanolamine 0.4%–0.7%; Phase B: Caprylic / Capric triglycerides 1.5%–2.5%, Cyclopentasiloxane 1.0%–2.0%, Cetyl ethylhexanoate 0.5%–1.0%, Glyceryl stearate SE 0.8%–1.2%; Phase C: Ligusticum chuanxiong extract 0.5%–1.2%, Angelica dahurica extract 0.4%–1.0%, Menthol 0.1%–0.3%, Borneol 0.05%–0.15%; Phase D: Phenoxyethanol 0.4%–0.6%, Ethylhexylglycerol 0.05%–0.10%, Limonene 0.02%–0.05%.

2. The gua sha gel for clearing meridians, relieving pain, and refreshing the skin as described in claim 1, characterized in that, The preferred proportions of each phase, by weight percentage, are as follows: Phase A: Purified water 79.45%, glycerol 6.5%, propylene glycol 3.0%, panthenol 0.5%, carbomer 940 0.5%, xanthan gum 0.15%, triethanolamine 0.55%; Phase B: Caprylic / Capric Triglyceride 2.0%, Cyclopentasiloxane 1.5%, Cetyl Ethylhexanoate 0.7%, Glyceryl Stearate SE 1.0%; Phase C: Ligusticum chuanxiong extract 0.8%, Angelica dahurica extract 0.7%, Menthol 0.2%, Borneol 0.1%; Phase D: Phenoxyethanol 0.5%, Ethylhexylglycerol 0.08%, Limonene 0.03%.

3. The meridian-clearing, pain-relieving, and refreshing scraping gel as described in claim 1, characterized in that, The scraping gel is an oil-in-water microemulsion gel system with a pH value controlled between 5.5 and 7.

0.

4. The meridian-clearing, pain-relieving, and refreshing scraping gel as described in claim 1, characterized in that, The carbomer 940 and xanthan gum are combined to form a three-dimensional gel network, and the glyceryl stearate SE is used as an oil-in-water emulsifier to disperse and stabilize the oil phase droplets.

5. The gua sha gel for clearing meridians, relieving pain, and refreshing the skin as described in claim 1, characterized in that, Phase B contains a compound oil of caprylic / capric triglycerides and cyclopentamethoxysiloxane; the cyclopentamethoxysiloxane is a volatile silicone oil.

6. The meridian-clearing, pain-relieving, and refreshing scraping gel as described in claim 1, characterized in that, The active ingredients of the C-phase traditional Chinese medicine are composed of extracts of Ligusticum chuanxiong, Angelica dahurica, menthol, and borneol.

7. A method for preparing a gua sha gel for promoting blood circulation, relieving pain, and refreshing the skin as described in claim 1, characterized in that, Includes the following steps: Step (1), A phase preparation: Glycerin, propylene glycol and panthenol are added sequentially under stirring with purified water to dissolve, and carbomer 940 and xanthan gum are added and stirred until completely swollen and free of particles; Step (2), B phase preparation: Mix the oil phase raw materials and heat to 75-80℃, stirring until transparent; Step (3), initial emulsification: slowly add phase B to phase A, keep warm at 70-75℃, and homogenize at high speed for 2-3 minutes; Step (4), cooling and neutralization: cool to below 45°C, add triethanolamine to adjust pH to 5.5-7.0 to obtain gel matrix; Step (5), add phase C functional components: add Ligusticum chuanxiong extract, Angelica dahurica extract, menthol and borneol in sequence and stir well; Step (6), post-processing: cool down to below 38℃, add D phase component, stir, let stand to degas, filter and discharge.

8. The preparation method of the meridian-clearing, pain-relieving, and refreshing scraping gel as described in claim 7, characterized in that, In step (3), the homogenization temperature is 70-75°C and the homogenization time is controlled to be 2-3 minutes.

9. The preparation method of the meridian-clearing, pain-relieving, and refreshing scraping gel as described in claim 7, characterized in that, In step (6), the filtration is performed using a 100-mesh filter, and the defoaming and standing time is not less than 30 minutes.

10. The gua sha gel for clearing meridians, relieving pain, and refreshing the skin as described in claim 1, characterized in that, The scraping gel is used for scraping along the meridians of the head to help relieve headaches caused by the Yangming meridian.