CN106309147B - A kind of cosmetic composition and preparation method with high security - Google Patents
A kind of cosmetic composition and preparation method with high security Download PDFInfo
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- CN106309147B CN106309147B CN201610886314.5A CN201610886314A CN106309147B CN 106309147 B CN106309147 B CN 106309147B CN 201610886314 A CN201610886314 A CN 201610886314A CN 106309147 B CN106309147 B CN 106309147B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/066—Multiple emulsions, e.g. water-in-oil-in-water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/67—Vitamins
- A61K8/678—Tocopherol, i.e. vitamin E
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/70—Biological properties of the composition as a whole
- A61K2800/72—Hypo-allergenic
Abstract
The invention discloses a kind of cosmetic composition and preparation method with high security, the structure of the cosmetic composition is Water-In-Oil packet oil structure, mutually oil includes 12.0~30.0% UV absorbent, 2.5~10% grease, 0.1~2% emulsifier 1 in wherein；Foreign minister's oil includes 10~55% grease, and 0.1~5.0% oil-soluble antiallergic antioxidant, 1.0~5.0% emulsifier 2, intermediate water phase includes 1.0~20.0% moisturizer, and 0.5~8% emulsifier 3, surplus is water；Wherein, the hydrophilic-hydrophobic balance value of the emulsifier 1 is lower than 5, and the hydrophilic-hydrophobic balance value of the emulsifier 2 is 3~8, and the hydrophilic-hydrophobic balance value of the emulsifier 3 is 10~15；The emulsifier 1 is greater than 1.5 with the summation of emulsifier 3 and the weight ratio of emulsifier 2.Irritation and higher sun-proof function can be effectively reduced in cosmetic composition prepared by the present invention.
Description
Technical field
The invention belongs to daily chemicals fields, and in particular to a kind of cosmetic composition and preparation method with high security.
Background technique
As global pollution is got worse, depletion of the ozone layer, the sunlight middle-ultraviolet lamp amount for reaching ground increases.In ultraviolet light
UVA and UVB ultraviolet light excessive radiation will lead to human skin and light aging sign occurs, such as: skin acute dermatitis (erythema) and burn
Wound, Skin pigmentation occur wrinkle, senile plaque too early, or even induce cutaneum carcinoma.Consumer has been becoming increasingly recognized that ultraviolet
Line is to the adverse effect of skin, sunscreen cosmetic sustainable growth in the market in recent years, Asia with " white " viewpoint for beauty more
It is the favor for leading to consumer to sunscreen cosmetic.Sunscreen cosmetic currently on the market, sun-proof principle is: adding in the product
Add chemically or physically sun-screening agent, chemical sun can absorb UVA and UVB ultraviolet light in sunlight, and by the energy conversion of preservation
At the radiation of harmless relatively long wave.Therefore chemical sun has the activity of photochemistry or physics, may naturally also show
Phototoxicity and optical sensibilization.The probability that the chemical sun added in sunscreen cosmetic causes contact sensitization is higher.And object
Reason sun-screening agent is also referred to as physical barrier agent, is to make to reach the ultraviolet dosage on skin by reflection, scatters ultraviolet and reduce
Reach sun-proof result.Utilization rate is highest on the market are as follows: titanium dioxide, zinc oxide.Titanium dioxide, zinc oxide will reach higher
Sun-proof result and good skin sense, particle size have to be lower than 100 nanometers of (or partially below), but at present nano material for
Abundant confirmation is not yet received in human safety.It still holds the prudent attitude to nano material for cosmetics various countries.Titanium dioxide simultaneously
Titanium material also has photocatalysis, and titanium dioxide must could all be used by excellent surface processing in cosmetics, without place
Photosensitized reaction can be promoted by managing or dealing with improperly, increase the sensitization risk of product.Therefore keep higher ultraviolet light anti-in sunscreen cosmetic
Effect is protected, but reduces the sensitization risk of product as far as possible, accomplishes safely and effectively to be still one of technical barrier.
Summary of the invention
The present invention is directed to overcome the deficiencies of existing technologies, a kind of cosmetic composition with high security is provided,
Irritation and higher sun-proof function can be effectively reduced in the cosmetic composition.
Another object of the present invention is to provide the preparation methods of the cosmetic composition.
Foregoing invention purpose of the invention is achieved by the following technical programs:
The invention discloses a kind of multiple emulsification architecture cosmetic compositions, include component as follows count by weight percentage:
Interior phase oil: UV absorbent 12.0~30.0%；
Grease 2.5~10%；
Emulsifier 1 0.1~2%；
Foreign minister's oil: grease 10~55%；
Oil-soluble antiallergic antioxidant 0.1~5.0%；
Emulsifier 2 1.0~5.0%；
Intermediate water phase: moisturizer 1.0~20.0%；
Polymer substance 1.0~5.0%；
Emulsifier 3 0.5~8%；
Surplus is water.
Wherein, the hydrophilic-hydrophobic balance value (HLB) of the emulsifier 1 is lower than 5, the hydrophilic-hydrophobic balance of the emulsifier 2
Value is 3~8, and the hydrophilic-hydrophobic balance value of the emulsifier 3 is 10~15；
The emulsifier 1 is greater than 1.5 with the summation of emulsifier 3 and the weight ratio of emulsifier 2.
Multiple emulsification architecture cosmetic compositions prepared by the present invention are oily (O/W/O) structure of Water-In-Oil packet, effect
Principle are as follows: will chemically or physically the maximization of UV absorbent control inside in mutually oil；Containing a certain amount of high in the water of intermediate water phase
Molecular compound increases the stability of composition, and the chemically or physically UV absorbent and skin of interior phase are isolated to a certain extent
The direct contact of skin reduces chemically or physically stimulation of the UV absorbent to skin；It is anti-containing a certain amount of oil-soluble in foreign minister's oil
Quick, antioxidant product easily infiltrates into keratoderma, protects skin.When by the multiple emulsification architecture cosmetic group
When conjunction object embrocates skin surface, antiallergic, antioxidant in foreign minister's oil are preferentially covered on skin, due to the oleophylic of skin
Characteristic, oil soluble material easily infiltrate into keratoderma, after the antiallergic, antioxidant in oily phase preferentially enter skin, are
Skin provides protective effect；The high score substance of intermediate water phase hinders interior phase substance in direct contact with the skin at thin film,
Reduce chemically or physically irritation of the sun-screening agent to skin；With the volatilization of middle layer moisture on the skin, interior phase emulsified state
It destroys, the chemically or physically sun-screening agent of interior phase oil releases, and plays anti-sunlight function.Inventor by experiment it has furthermore been found that
The emulsifier summation of emulsifier and intermediate water phase by selecting suitable emulsifier, and in control in phase oil and the cream of foreign minister's oil
When the ratio of the dosage of agent is greater than 1.5, be conducive to the preparation of cosmetic composition, and prepared cosmetic composition emulsification
Structure is relatively stable, and irritation but also higher sun-proof function can not only be effectively reduced.
Preferably, the UV absorbent is ethylhexyl methoxy cinnamate, Octocrilene, ethylhexyl salicylate, Hu
Not willow ester, Dimethicodiethylbenzalmalonate, butylmethoxydibenzoylmethane, Uvinul A Plus, 4- first
Base Benzylidene camphor, Uvinul T 150, Phenylbenzimidazolesulfonic acid, double ethyl hexyl oxy phenol anisyl triazines, two
Titanium oxide, at least two kinds in zinc oxide.
Preferably, the grease be cyclomethicone, ring five dimethyl silicone polymer, dimethyl silicone polymer,
Alkyl dimethicone, C12-15 alcohol benzoic ether, the different nonyl rouge of isononanoic acid, Parleam hydrogenate poly- certain herbaceous plants with big flowers alkene, angle
Shark alkane, isoparaffin, carbonic acid dioctyl ester, propylene glycol carbonate, ethylhexyl palmitate, caprylic/capric triglyceride, olive oil
Rouge, Jojoba grease, at least one of shea butter rouge.
Preferably, the emulsifier 1 is sorbitan stearate, glyceryl stearate, alkyl stereth, methyl Portugal
Polyglycoside polyglycol ether stearate, soybean lecithin, at least one of alkyl glucoside.
Preferably, the emulsifier 2 is sorbitan stearate, glyceryl stearate, ceteareth, methyl Portugal
Polyglycoside sesquialter stearate, polyglycol ether dimethyl siloxane, polydimethylsiloxane polyether polymer, alkyl, polyether are poly-
Dimethyl siloxane, at least one of polyglycereol poly dimethyl silicone hydroxyl ethyl dimethyl silicone polymer.
Preferably, it is polyglycol ether glyceryl stearate, alkyl stereth, alkyl that the emulsifier 3, which is emulsifier,
Alcohol ether phosphate potassium, alkyl phosphate potassium, methyl glucoside polyglycol ether stearate, at least one of alkyl glucoside.
Preferably, the moisturizer is glycerol, propylene glycol, butanediol, pentanediol, hexylene glycol, ethohexadiol, decanediol, hydroxyl
At least one of ethyl carbamide, glycine betaine, pyrrolidone sodium carboxylate, hyaluronic acid and salt, plant polyose class.
Preferably, the polymer substance is xanthan gum, polyacrylate or salt, polyacrylic acid/C10-30 alkyl
Acid esters cross-linked polymer, sodium acrylate/dimethyl acrylamide sodium acyl taurine, ammonium acryloyldime-thyltaurate/VP copolymer, second
Vinyl pyrrolidone/icosa alkene, VP/ eicosylene, VP/ octadecene, vinyl pyrrolidone/icosa alkene, hydroxypropyl methyl
Cellulose, at least one of Hydroxypropyl ethyl cellulose.
Preferably, the oil-soluble antiallergic, antioxidant are bisabolol, ascorbic acid, retinol, retinol palm fibre
It is glycerin monostearate, tocopherol, tocopherol acetate, ceramide, ubiquinone, algae extract, olive extract, aloe extract, sweet
At least one of careless extract, sea salt.
Further, the multiple emulsification architecture cosmetic compositions also contain one of following components or a variety of:
The nutritional additive of weight percent 0.1 ~ 10%；
The colorant of weight percent 0.1 ~ 5%；
Weight percent is no more than 1.5% preservative；
Weight percent is no more than 1.0% essence.Colorant can be used for colour of skin modification, such as iron oxide.Essence can be used for adjusting
The smell of sunscreen composition is saved, the fragrance of a flower, radix aucklandiae, fruity are such as lifted.
The preparation method of the multiple emulsification architecture cosmetic compositions, includes the following steps:
S1, interior phase oil, intermediate water phase, foreign minister's oil are respectively configured by formula ratio；
It S2, by interior phase oil and intermediate water phase mixing and emulsifying is oil-in-water type (O/W) emulsion system；
S3, Water-In-Oil oil-in (O/W/O) multiple milk liquid will be emulsified into emulsion oil-in-water system addition foreign minister's oil
System, obtains multiple emulsification architecture cosmetic compositions.
Compared with prior art, the invention has the following beneficial effects: the present invention to be prepared for a kind of new multiple emulsified body
It is cosmetic composition, structure is O/W/O type, when the multiple emulsification architecture cosmetic compositions are embrocated skin surface, outside
Mutually the antiallergic in oil, antioxidant are preferentially covered on skin, and due to the oil-wet behavior of skin, oil soluble material is easily infiltrated into
Keratoderma provides protective effect after antiallergic, antioxidant in oily phase preferentially enter skin for skin；Intermediate water
The high score substance of phase at thin film, hinder in phase substance it is in direct contact with the skin, reduce chemically or physically sun-screening agent to skin
Irritation；With the volatilization of middle layer moisture on the skin, interior phase emulsified state is destroyed, the chemically or physically sun-screening agent of interior phase oil
It releases, plays anti-sunlight function, irritation but also higher sun-proof function can be not only effectively reduced in the cosmetic composition.
Specific embodiment
Invention is further explained combined with specific embodiments below, and following embodiment and comparative example are raw materials used
For ordinary commercial products.
Embodiment 1
S1, interior phase oil, intermediate water phase, foreign minister's oil are respectively configured by formula shown in table 1, are pre-processed (dissolution point respectively
Dissipate) at uniform state；
S2, interior phase oil is mixed with intermediate water phase, is emulsified as oil-in-water type (O/W) emulsion system；
S3, Water-In-Oil oil-in (O/W/O) multiple milk liquid will be emulsified into emulsion oil-in-water system addition foreign minister's oil
System, obtains multiple emulsification architecture cosmetic compositions.
Embodiment 2
S1, interior phase oil, intermediate water phase, foreign minister's oil are respectively configured by formula shown in table 2, are pre-processed (dissolution point respectively
Dissipate) at uniform state；
S2, interior phase oil is mixed with intermediate water phase, is emulsified as oil-in-water type (O/W) emulsion system；
S3, Water-In-Oil oil-in (O/W/O) multiple milk liquid will be emulsified into emulsion oil-in-water system addition foreign minister's oil
System, obtains multiple emulsification architecture cosmetic compositions.
Embodiment 3
S1, interior phase oil, intermediate water phase, foreign minister's oil are respectively configured by formula shown in table 3, are pre-processed (dissolution point respectively
Dissipate) at uniform state；
S2, interior phase oil is mixed with intermediate water phase, is emulsified as oil-in-water type (O/W) emulsion system；
S3, Water-In-Oil oil-in (O/W/O) multiple milk liquid will be emulsified into emulsion oil-in-water system addition foreign minister's oil
System, obtains multiple emulsification architecture cosmetic compositions.
Embodiment 4
S1, interior phase oil, intermediate water phase, foreign minister's oil are respectively configured by formula shown in table 4, are pre-processed (dissolution point respectively
Dissipate) at uniform state；
S2, interior phase oil is mixed with intermediate water phase, is emulsified as oil-in-water type (O/W) emulsion system；
S3, Water-In-Oil oil-in (O/W/O) multiple milk liquid will be emulsified into emulsion oil-in-water system addition foreign minister's oil
System, obtains multiple emulsification architecture cosmetic compositions.
Table 1
Comparative example 1
Interior phase oil and foreign minister's oil are uniformly mixed by the formula of table 1, are then added in intermediate water phase, room temperature emulsifying 15
Minute.
Comparative example 2
2 PEG-10 dimethyl silicone polymer dosage of emulsifier in embodiment 1 is changed to 1%, pure water dosage is changed to
14.3%, remaining is same as Example 1.
The cosmetic composition prepared respectively to embodiment 1 to 4 and comparative example 1, comparative example 2 is tested, using centrifugation
The production rate of O/W/O structure is verified in separation test, verifies product stability with temperature Xun ring test, and with multiple skin
Irritation test carrys out the safety of contrast product.
Centrifuge test:
In two step emulsification preparation thereofs of embodiment 1 to 4 and comparative example 2, chemical sun is dissolved in interior phase oil, by
In second emulsifying, if interior phase oil component is completely formed the interior oily phase of O/W/O structure, outer oil does not just have chemical sun mutually.Therefore
By chemical sun as marker, the production rate of O/W/O type structure is evaluated.
Operating method: the cosmetic composition sample of preparation is dispensed into 5 20g samples in centrifuge tube respectively, A sample
It is individually identified as A1, A2, A3, A4, A5 centrifugal speed 3000rpm/min are centrifuged 1 hour.Every sample supernatant liquor is taken respectively,
The content of wherein UV absorbent is tested with high performance liquid chromatograph.
Test data is as follows:
Embodiment 1
Embodiment 2
Embodiment 3
Embodiment 4
Comparative example 1
Comparative example 2
Temperature Xun ring test: sample is filled to sample 200ml respectively, 3, marks A6, A7, A8 respectively.Labeled as being put into temperature
Automatic Xun ring test case, tests Xun ring temperature and time are as follows: 45 DEG C (24 hours) → 25 DEG C (24 hours) → -10 DEG C (24 hours)
It → 25 DEG C (24 hours), repeats Xun ring 5 times, whether observation appearance changes.For understand emulsified body internal structure situation of change,
Sample after Xun ring 5 times does above-mentioned centrifugation and surveys, and detects the content of chemical sun, the results showed that, embodiment and comparative example
Appearance is close without substantially changeing and recycling front and back chemical sunscreen agent content.
The irritation test of multiple skin: doing multiple skin irritation for the sample of embodiment and comparative example and test, test
It is tested by 2007 editions " cosmetics health specification " requirement methods, integral comparation and assessment is carried out to sample, it is lower to integrate smaller irritation, comments
Than the results are shown in Table 11.
Sun-proof function tests (sun protection factor): using 601 multiport spf testing of Model, 6 output
Solar simulator (SPF tests ultraviolet sunlight simulator) test, test sample embodiment and comparative example is anti-respectively
Coefficient is shone, the results are shown in Table 11.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as, as long as skill obtained in the form of equivalent substitutions or equivalent transformations
Art scheme should all include within the scope of protection of the claims of the present invention.
Claims (2)
1. a kind of multiple emulsification architecture cosmetic compositions, which is characterized in that include component as follows count by weight percentage:
Interior phase oil: UV absorbent 17%；
Grease 2.5%；
Emulsifier 1 0.2%；
Foreign minister's oil: grease 53.58%；
Antiallergic, antioxidant 0.8%；
Emulsifier 2 1.3%；
Essence 0.02%；
Intermediate water phase: moisturizer 5%；
Polymer substance 1%；
Preservative 0.6%；
Emulsifier 3 2%；
Nutritional additive 1%；
Water 15%；
Wherein, the UV absorbent in the interior phase oil includes: ethylhexyl methoxy cinnamate 8%, Octocrilene 5%, and two
The own ester 4% of ethylamino oxybenzene formylbenzoate；The grease includes: C12-15 alcohol benzoic ether 1.5%, Permethyl 99A 1%；Institute
Stating emulsifier 1 is sorbitan stearate, and hydrophilic-hydrophobic balance value is 4.7；
The grease in foreign minister oil includes: octyl dimethyl silicone polymer 5%, dimethyl silicone polymer 5%, and ring five is poly-
Dimethyl siloxane 20%, ethylhexyl palmitate 14.5%, Parleam 9.08%；The antiallergic, antioxidant packet
It includes: bisabolol 0.1%, retinyl palmitate 0.3%, tocopherol acetate 0.3%, brown alga extract 0.1%；The essence is
The fragrance of a flower；The emulsifier 2 includes: the PEG-10 dimethyl silicone polymer 0.3% that hydrophilic-hydrophobic balance value is 4.5, hydrophilic-hydrophobic
The cetyl PEG/PPG-10/1 dimethyl silicone polymer 1% that equilibrium valve is 8；
The moisturizer in the intermediate water phase is 1,3 butanediols；The water is pure water；The nutritional additive mentions for tremella
Take liquid；The polymer substance is ammonium acryloyl taurate/VP copolymer；The emulsifier 3 is cetyl phosphoric acid
Ester potassium, hydrophilic-hydrophobic balance value are 11；The preservative includes: methyl p-hydroxybenzoate 0.2%, Phenoxyethanol 0.4%.
2. the preparation method of multiple emulsification architecture cosmetic compositions described in claim 1, which is characterized in that including walking as follows
It is rapid:
S1, interior phase oil, intermediate water phase, foreign minister's oil are respectively configured by formula ratio；
It S2, by interior phase oil and intermediate water phase mixing and emulsifying is emulsion oil-in-water system；
S3, it will be emulsified into Water-In-Oil oil-in multiple emulsion system in emulsion oil-in-water system addition foreign minister's oil, obtained multiple
Emulsification system cosmetic composition.
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| CN107007481B (en) * | 2017-04-18 | 2021-10-22 | 上海相宜本草化妆品股份有限公司 | Multiple emulsion composition and preparation method thereof |
| CN107095806B (en) * | 2017-06-27 | 2021-04-30 | 新时代健康产业（集团）有限公司 | Oil-in-emulsion foundation emulsion and preparation method thereof |
| DE102017213219A1 (en) * | 2017-08-01 | 2019-02-07 | Beiersdorf Ag | Sunscreen with low eye irritation potential |
| CN107648118A (en) * | 2017-11-02 | 2018-02-02 | 广州市美晟美容化妆品有限公司 | A kind of multifunctional sun cream and preparation method thereof |
| EP3713538A4 (en) * | 2017-11-20 | 2021-07-07 | Evonik Operations GmbH | Water in oil emulsifier composition and the use thereof |
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| CN108969407A (en) * | 2018-09-03 | 2018-12-11 | 芜湖凌梦电子商务有限公司 | Sun-proof essence cream and preparation method thereof |
| CN108938470B (en) * | 2018-10-25 | 2021-11-05 | 上海儒溪生物科技有限公司 | O/W/O multiple-structure sun-proof BB cream and preparation method thereof |
| CN109199879B (en) * | 2018-10-25 | 2021-11-05 | 上海儒溪生物科技有限公司 | O/W/O multiple-structure sunscreen cream and preparation method thereof |
| EP3878429A4 (en) * | 2018-11-08 | 2022-09-07 | Amorepacific Corporation | Cosmetic composition in multiple emulsion formulation |
| CN109549859B (en) * | 2018-12-29 | 2021-12-07 | 浙江大学华南工业技术研究院 | Low-irritation multiple-emulsification sunscreen cosmetic and preparation method thereof |
| CN109820738B (en) * | 2019-03-29 | 2021-11-02 | 广东芭薇生物科技股份有限公司 | High-power oil-in-water sunscreen cosmetic |
| CN110302109A (en) * | 2019-07-18 | 2019-10-08 | 福建省亚热带植物研究所 | A kind of oil/water containing peony seed oil/oil type sunscreen and preparation method thereof |
| CN110664661A (en) * | 2019-11-01 | 2020-01-10 | 陕西崇文生物科技有限公司 | Mild repairing skin-brightening sunscreen lotion and preparation method thereof |
| CN112472629A (en) * | 2020-12-16 | 2021-03-12 | 中国热带农业科学院农产品加工研究所 | Alpinia officinarum and amomum tsao-ko sun-proof emulsion and preparation method thereof |
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