JP2000256165A - Bleaching cosmetic - Google Patents

Bleaching cosmetic

Info

Publication number
JP2000256165A
JP2000256165A JP11061374A JP6137499A JP2000256165A JP 2000256165 A JP2000256165 A JP 2000256165A JP 11061374 A JP11061374 A JP 11061374A JP 6137499 A JP6137499 A JP 6137499A JP 2000256165 A JP2000256165 A JP 2000256165A
Authority
JP
Japan
Prior art keywords
skin
compound
cosmetic
effect
phpo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11061374A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Morita
和良 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Original Assignee
Kanebo Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kanebo Ltd filed Critical Kanebo Ltd
Priority to JP11061374A priority Critical patent/JP2000256165A/en
Publication of JP2000256165A publication Critical patent/JP2000256165A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cosmetics (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic having no skin irritation, excellent inhibitory effect on skin inflammation by ultraviolet light, inhibiting effect on melanization and rapidly hypochromic effect on skin pigmentation by making the cosmetic include a specific hydroxyketone compound. SOLUTION: This cosmetic contains at least one selected from 3-hydroxy ketone compounds of the formula (R1 is H, CH3 or C2H5; each aromatic group is substituted with 1-3 OR1 groups) (hereinafter PHPO). For example, 1,5-bis(p- hydroxyphenyl)-2-hydroxypentan-4-one, etc., may be cited as the PHPO. The compound is obtained by synthesizing a 2-isoxazoline compound from an aryl acedoxime compound and an allylarene by using NaOCl and triethylamine and reducing the 2-isoxazoline compound with a Raney-Ni. The formulation amount in the bleaching cosmetic is preferably 0.001-5.0 wt.% based on the total amount.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、皮膚刺激がなく、
紫外線による皮膚の炎症抑制効果、メラニン色素の産生
抑制効果に優れ、更には皮膚の色素沈着を速やかに淡色
化する効果に優れた有用な美白化粧料に関する。
TECHNICAL FIELD The present invention relates to a method for producing a skin without irritation.
The present invention relates to a useful whitening cosmetic having an excellent effect of suppressing inflammation of the skin by ultraviolet rays and an effect of suppressing the production of melanin pigments, and an excellent effect of rapidly lightening the pigmentation of the skin.

【0002】[0002]

【従来の技術及び発明が解決しようとする課題】紫外線
により皮膚の色調は変化し黒化する。黒化は、メラノサ
イトにおいて産生され表皮細胞に受け渡されるメラニン
の過剰生産が原因であり、このメラニンについては、チ
ロシンが酸化され産生されることが知られている。
2. Description of the Related Art The color tone of the skin is changed by the ultraviolet rays and blackened. Blackening is caused by overproduction of melanin, which is produced in melanocytes and passed to epidermal cells, and it is known that tyrosine is oxidized and produced.

【0003】従来より、皮膚の黒化、しみやそばかす等
の予防や治療を目的とする美白化粧料として、アスコル
ビン酸およびその誘導体、ハイドロキノン誘導体、コウ
ジ酸等のピロン類、プラセンターエキス等の胎盤抽出物
などが配合されたものが提案されている。これらの物質
は、メラニン生成の抑制、生成したメラニンの淡色漂白
作用の効果などの美白効果を有する物質として開示され
ている。
Hitherto, as whitening cosmetics for the purpose of preventing or treating skin darkening, spots and freckles, ascorbic acid and its derivatives, hydroquinone derivatives, pyrones such as kojic acid, placenta such as placenta extract, etc. An extract containing an extract or the like has been proposed. These substances are disclosed as substances having a whitening effect such as suppression of melanin production and the effect of pale bleaching action of the produced melanin.

【0004】しかしながら、これらの物質は、例えばア
スコルビン酸およびその誘導体は、保存安定性が不十分
であったり、紫外線による炎症防止効果が十分に認めら
れないことが多い。また、ハイドロキノン誘導体は安全
性が十分ではないなど問題がある。このようにこれまで
の物質ではメラニンの生成抑制効果、メラニンの淡色漂
白作用、炎症防止効果、安全性等において総合的に優れ
る美白化粧料を得ることはなかなか難しいのが実状であ
る。
[0004] However, these substances, for example, ascorbic acid and its derivatives, often have insufficient storage stability or do not sufficiently show the effect of preventing inflammation caused by ultraviolet rays. Hydroquinone derivatives also have problems such as insufficient safety. As described above, it is actually difficult to obtain a whitening cosmetic composition which is entirely superior in terms of melanin production inhibitory effect, melanin pale bleaching effect, anti-inflammatory effect, safety and the like.

【0005】そこで、本発明の目的は、皮膚刺激がな
く、紫外線による皮膚の炎症抑制効果、メラニン色素の
産生抑制効果に優れ、更には皮膚の色素沈着を速やかに
淡色化する効果に優れた有用な美白化粧料を提供するこ
とにある。
[0005] Therefore, an object of the present invention is to provide an excellent effect of suppressing skin inflammation due to ultraviolet rays and suppressing the production of melanin pigment without causing skin irritation, and further excellent effect of rapidly fading the pigmentation of the skin. It is to provide a natural whitening cosmetic.

【0006】[0006]

【課題を解決するための手段】本発明者らは、このよう
な実情に鑑み、従来技術の難点を改良せんとして鋭意研
究を重ねた結果、下記一般式化2で示される3−ヒドロ
キシケトン化合物から選択される少なくとも1種を配合
した化粧料は、皮膚刺激がなく、紫外線による皮膚の炎
症抑制効果、メラニン色素の産生抑制効果、更には皮膚
の色素沈着を速やかに淡色化する効果に優れていること
を見出し本発明を完成したものである。
Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies to improve the disadvantages of the prior art, and as a result, a 3-hydroxyketone compound represented by the following general formula 2 has been obtained. The cosmetics containing at least one selected from the group have no skin irritation, have an effect of suppressing skin inflammation due to ultraviolet rays, an effect of suppressing the production of melanin pigment, and an excellent effect of rapidly lightening pigmentation of skin. It was found that the present invention was completed.

【0007】[0007]

【化2】 (ただし、R1 =H,CH3,C25を示す。またOR1
基は各芳香環に1〜3個置換したものを表わす。)
Embedded image (However, R 1 = H, CH 3 , C 2 H 5. Also, OR 1
The groups represent one to three aromatic rings. )

【0008】即ち、本発明は、下記一般構造式化3で示
される3−ヒドロキシケトン化合物(以下、PHPOと
略記する)から選択される少なくとも1種を含有するこ
とを特徴とする美白化粧料である。
That is, the present invention provides a whitening cosmetic comprising at least one selected from 3-hydroxyketone compounds (hereinafter abbreviated as PHPO) represented by the following general structural formula 3. is there.

【0009】[0009]

【化3】 (ただし、R1 =H,CH3,C25を示す。またOR1
基は各芳香環に1〜3個置換したものを表わす。)
Embedded image (However, R 1 = H, CH 3 , C 2 H 5. Also, OR 1
The groups represent one to three aromatic rings. )

【0010】[0010]

【発明の実施の形態】以下、本発明の構成を詳細につい
て説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail.

【0011】本発明の美白化粧料に用いられるPHPO
としては、具体的には、1,5−ビス(p−ヒドロキシ
フェニル)−2−ヒドロキシペンタン−4−オン[1,
5−bis(p−hydroxyphenyl)−2−
hydroxypentane−4−ones]、1,
5−ビス(o,p−ジヒドロキシフェニル)−2−ヒド
ロキシペンタン−4−オン、1,5−ビス(p−ヒドロ
キシフェニル−m−メトキシフェニル)−2−ヒドロキ
シペンタン−4−オンなどが挙げられる。これらは公知
の合成方法で得られ、例えばパルキネン等(Juha T.Pulk
kinen et al.,Tetrahedron Letters.,35巻,No52,9749-9
750頁,1994年、 J.Org.Chem.,61巻,8604〜8609頁,1996
年)の方法によって合成することができる。アリルアセ
ドキシム化合物とアリルアレン化合物をNaOClおよ
びトリエチルアミンで2−イソキサゾリン化合物を合成
し、それをRaney−Niで還元して目的の3−ヒド
ロキシケトン化合物を得ることができる。
[0011] PHPO used in the whitening cosmetic of the present invention
Specifically, 1,5-bis (p-hydroxyphenyl) -2-hydroxypentan-4-one [1,
5-bis (p-hydroxyphenyl) -2-
hydroxypentane-4-ones], 1,
5-bis (o, p-dihydroxyphenyl) -2-hydroxypentan-4-one, 1,5-bis (p-hydroxyphenyl-m-methoxyphenyl) -2-hydroxypentan-4-one, and the like. . These can be obtained by a known synthesis method, for example, parkinene and the like (Juha T. Pulk).
kinen et al., Tetrahedron Letters., 35, No52, 9749-9
750, 1994, J. Org. Chem., 61, 8604-8609, 1996
Year). A 2-isoxazoline compound is synthesized from an allyl acedoxime compound and an allyl allene compound with NaOCl and triethylamine, and the compound is reduced with Raney-Ni to obtain a desired 3-hydroxyketone compound.

【0012】そして、本発明に用いられるPHPOの美
白化粧料への配合量としては、総量を基準として0.0
01〜5.0重量%(以下wt%とする)が好ましい。
The amount of the PHPO used in the present invention in the whitening cosmetic is 0.00% based on the total amount.
It is preferably from 0.01 to 5.0% by weight (hereinafter referred to as wt%).

【0013】本発明の美白化粧料の剤型としては、ロー
ション類、乳液類、クリーム類、パック類などが挙げら
れる。
Examples of the dosage form of the whitening cosmetic of the present invention include lotions, emulsions, creams, packs and the like.

【0014】尚、本発明の美白化粧料には、色素、香
料、防腐剤、界面活性剤、顔料等を本発明の目的を達成
する範囲で適宜配合することができる。
The whitening cosmetic composition of the present invention may be appropriately blended with pigments, fragrances, preservatives, surfactants, pigments and the like within a range that achieves the object of the present invention.

【0015】[0015]

【実施例】以下、実施例及び比較例に基づいて本発明を
詳細に説明する。
The present invention will be described below in detail based on examples and comparative examples.

【0016】(1)紫外線紅斑抑制試験、(2)チロシ
ナーゼ活性阻害試験、(3)皮膚色明度回復試験、
(4)美白実用試験、及び(5)光パッチ試験の各試験
法は以下の通りである。
(1) UV erythema suppression test, (2) tyrosinase activity inhibition test, (3) skin color brightness recovery test,
The test methods of (4) whitening practical test and (5) optical patch test are as follows.

【0017】(1)紫外線紅斑抑制試験 除毛したハートレー系モルモット10匹の背部皮膚に、
UVB領域の紫外線の最小紅斑量の2倍を各2ヶ所ずつ
照射する。24時間前と照射直後に試料を塗布し、試料
塗布部位とベース塗布部位とを設定して24時間後の紅
斑の状態を表1の判定基準に従い評価する。
(1) UV erythema suppression test The hair on the back skin of 10 Hartley-type guinea pigs,
Two times each of the minimum erythema amount of the ultraviolet rays in the UVB region is irradiated at each of two locations. The sample is applied 24 hours before and immediately after the irradiation, the sample application site and the base application site are set, and the erythema state 24 hours later is evaluated according to the criteria shown in Table 1.

【0018】[0018]

【表1】 [Table 1]

【0019】(2)チロシナーゼ活性阻害試験 マックルベイン緩衝液(pH6.8)1mlに、0.3
mg/ml濃度のチロシン溶液と各濃度の試料溶液を加
え、37℃にて10分間の予備保温を行う。これに1m
g/ml濃度のチロシナーゼ(シグマ社製)0.1ml
を加え37℃にて15分間加温した後、分光光度計を用
いて、波長475nmにて吸光度(A)を測定した。一
方、チロシナーゼの代わりに緩衝液0.1mlを加えた
ものの吸光度(B)、試料溶液の代わりに緩衝液0.1
mlを加えたものの吸光度(C)、更に試料溶液とチロ
シナーゼの代わりに緩衝液0.2mlを加えたものの吸
光度(D)をそれぞれ測定して、下式に従い阻害率
(%)を算出した。
(2) Tyrosinase Activity Inhibition Test 1 ml of McClubine buffer (pH 6.8)
A tyrosine solution having a concentration of mg / ml and a sample solution having each concentration are added, and preliminarily maintained at 37 ° C. for 10 minutes. 1m to this
0.1 ml of tyrosinase (manufactured by Sigma) at a concentration of g / ml
After heating at 37 ° C. for 15 minutes, the absorbance (A) was measured at a wavelength of 475 nm using a spectrophotometer. On the other hand, the absorbance (B) obtained by adding 0.1 ml of buffer solution instead of tyrosinase,
The absorbance (C) of the solution to which the solution was added and the absorbance (D) of the solution to which 0.2 ml of the buffer solution was added instead of the sample solution and tyrosinase were measured, and the inhibition rate (%) was calculated according to the following formula.

【0020】[0020]

【数1】 (Equation 1)

【0021】(3)皮膚色明度回復試験 被試験者20名の上腕内側部皮膚に、UVA、UVB領
域の紫外線の最小紅斑量を3日間連続照射し、照射終了
後、試料クリーム塗布部とベースクリーム塗布部皮膚の
基準明度(V0 値、V0 ’値)を測定した。引き続い
て、1日3回ずつ4週間連続で塗布し、照射開始1、
2、4週間後の試料クリーム塗布部とベースクリーム塗
布部皮膚の皮膚明度(Vn 値、Vn ’値)を測定して、
表2の判定基準により皮膚色の回復評価を行った。
(3) Skin lightness recovery test The skin of the upper inner arm of the 20 test subjects was continuously irradiated with the minimum amount of UVA and UVB erythema in the UVA and UVB regions for 3 days. The reference lightness (V0 value, V0 'value) of the cream-applied skin was measured. Subsequently, application was performed three times a day for four consecutive weeks, starting irradiation 1,
After 2 or 4 weeks, the skin lightness (Vn value, Vn 'value) of the skin where the sample cream was applied and the base cream was applied was measured.
The skin color recovery was evaluated according to the criteria shown in Table 2.

【0022】尚、皮膚の明度(マンセル表示系V値)
は、高速分光色彩計で測定して得られるX、Y、Z値よ
り算出した。また、評価は被試験者20名の4週間後に
おける評価点の平均値で示した。
The brightness of the skin (V value of Munsell display system)
Was calculated from X, Y, and Z values obtained by measurement with a high-speed spectral colorimeter. The evaluation was indicated by the average of the evaluation points of the 20 test subjects after 4 weeks.

【0023】[0023]

【表2】 [Table 2]

【0024】(4)美白実用試験 被試験者20名の前腕屈側部皮膚を、夏期の太陽光に3
時間(1日1.5時間で2日間)曝した。左前腕屈側部
皮膚には太陽光に曝された日から、右前腕屈側部皮膚に
は太陽光に曝された日の7日後から5mg/cm2の量の割合
で試料(実施例)とベース(比較例)を朝夕1回ずつ、
13週連続塗布した。なお、評価はベース塗布部、試料
塗布部の効果が、顕著に確認された被験者の人数で示
す。
(4) Practical whitening test The skin of the flexed side of the forearm of 20 test subjects was exposed to sunlight in summer for 3 days.
Exposure time (1.5 hours a day for 2 days). A sample of 5 mg / cm 2 in the left forearm flexor skin from the day exposed to sunlight and the right forearm flexor skin from 7 days after the day exposed to sunlight (Example) And the base (comparative example) once in the morning and evening,
It was applied continuously for 13 weeks. In addition, the evaluation is shown by the number of subjects for which the effects of the base application section and the sample application section were remarkably confirmed.

【0025】(5)光パッチ試験 被験者25名の前腕屈側部皮膚に対し試料0.05gを
塗布した直径1.0cmのパッチ板を用いて24時間ク
ローズドパッチを行った後、夏期の太陽光を6時間(1
日3時間で2日間)照射した。
(5) Optical Patch Test Closed patches were applied to the skin of the flexion side of the forearm of 25 subjects for 24 hours using a patch plate having a diameter of 1.0 cm and 0.05 g of the sample applied thereto. For 6 hours (1
(3 hours a day for 2 days).

【0026】評価は、表3の判定基準に従い被験者20
名の皮膚の状態を評価判定した。判定結果は、照射24
時間後に、(±)以上の人数で示した。
The evaluation was performed according to the criteria shown in Table 3 below.
The skin condition of each name was evaluated and judged. The judgment result is irradiation 24
After the time, the number is indicated by (±) or more.

【0027】[0027]

【表3】 [Table 3]

【0028】実施例1〜6、比較例1 二相型ローショ
ン 表4の原料組成において、化4(PHPO−1,2、実
施例1,2)、化5(PHPO−3,4、実施例3,
4)、化6(PHPO−5,6、実施例5,6)のそれ
ぞれの有効成分を表5に記載の如く配合して二相型ロー
ションを調製し、前記の諸試験を実施した。
Examples 1 to 6 and Comparative Example 1 Two-phase type lotion In the raw material composition shown in Table 4, the chemical formula 4 (PHPO-1,2, Example 1,2) and the chemical formula 5 (PHPO-3,4, 3,
4) The active ingredients of Chemical Formula 6 (PHPO-5, 6, Examples 5 and 6) were blended as shown in Table 5 to prepare a two-phase lotion, and the above-mentioned tests were carried out.

【0029】[0029]

【化4】 Embedded image

【0030】[0030]

【化5】 Embedded image

【0031】[0031]

【化6】 Embedded image

【0032】[0032]

【表4】 [Table 4]

【0033】[0033]

【表5】 [Table 5]

【0034】(1)調製法 表4に記載のB成分をA成分中に均一に溶解した後、A
成分とC成分とを均一に混合攪拌分散し、次いで容器に
充填する。使用時には、内容物を均一に振盪分散して使
用する。
(1) Preparation method After B component shown in Table 4 was uniformly dissolved in A component,
The component and the C component are uniformly mixed, stirred and dispersed, and then filled into a container. When used, the contents are shaken and dispersed uniformly.

【0035】(2)特性 諸試験を実施した結果を表5に示した。表5に示す如
く、実施例1〜6の本発明の二相型ローションは、諸試
験の総てにおいて明らかに良好な結果を示し、ヒト皮膚
での諸試験において皮膚刺激は生じなかった。一方、比
較例1のものは、実施例のものに比べ諸試験において劣
っていた。
(2) Characteristics Table 5 shows the results of various tests. As shown in Table 5, the two-phase lotions of the present invention of Examples 1 to 6 showed clearly good results in all tests, and no skin irritation occurred in tests on human skin. On the other hand, the sample of Comparative Example 1 was inferior to those of the Examples in various tests.

【0036】実施例7〜12、比較例2 スキンクリー
ム 表6の原料組成において、化7(PHPO−7,8、実施
例7,8)、化8(PHPO−9,10、実施例9,1
0)、化9(PHPO−11,12、実施例11,1
2)のそれぞれの有効成分を表5に記載の如く濃度で配
合してスキンクリームを調製し、前記の諸試験を実施し
た。
Examples 7 to 12, Comparative Example 2 Skin cream In the raw material composition shown in Table 6, Chemical Formula 7 (PHPO-7,8, Examples 7,8) and Chemical Formula 8 (PHPO-9,10, Example 9, 1
0), Chemical formula 9 (PHPO-11, 12, Example 11, 1)
Each active ingredient of 2) was blended at a concentration as shown in Table 5 to prepare a skin cream, and the above-described tests were performed.

【0037】[0037]

【化7】 Embedded image

【0038】[0038]

【化8】 Embedded image

【0039】[0039]

【化9】 Embedded image

【0040】[0040]

【表6】 [Table 6]

【0041】(1)調製法 表6に記載のB成分をA成分に混合し、A成分とC成分
とをそれぞれ均一に加熱溶解して温度を80℃にする。
次いで、A成分中にC成分を注入攪拌混合した後、攪拌
しながら温度を30℃まで冷却する。
(1) Preparation method The B component described in Table 6 is mixed with the A component, and the A component and the C component are each heated and dissolved uniformly to bring the temperature to 80 ° C.
Next, the component C is injected into the component A, mixed with stirring, and then cooled to 30 ° C. with stirring.

【0042】諸試験を実施した結果を表5に示した。表
5に示す如く、実施例7〜12の本発明のスキンクリー
ムは、諸試験の総てにおいて明らかに良好な結果を示
し、ヒト皮膚での諸試験において皮膚刺激は生じなかっ
た。一方、比較例2のものは、実施例のものに比べ諸試
験において劣っていた。
Table 5 shows the results of the tests. As shown in Table 5, the skin creams of the present invention of Examples 7 to 12 showed clearly good results in all of the tests, and no skin irritation occurred in the tests on human skin. On the other hand, those of Comparative Example 2 were inferior to those of Examples in various tests.

【0043】[0043]

【発明の効果】以上記載の如く、本発明は、皮膚刺激が
なく、紫外線による皮膚の炎症抑制効果、メラニン色素
の産生抑制効果に優れ、更には皮膚の色素沈着を速やか
に淡色化する効果に優れた極めて有用な美白化粧料を提
供することは明らかである。
As described above, the present invention has no skin irritation, is excellent in the effect of suppressing skin inflammation due to ultraviolet rays, the effect of suppressing the production of melanin pigments, and the effect of rapidly lightening the pigmentation of the skin. It is clear that it provides an excellent and very useful whitening cosmetic.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 下記一般式化1で示される3−ヒドロキ
シケトン化合物から選択される少なくとも1種を含有す
ることを特徴とする美白化粧料。 【化1】 (ただし、R1 =H,CH3,C25を示す。またOR1
基は各芳香環に1〜3個置換したものを表わす。)
1. A whitening cosmetic comprising at least one selected from 3-hydroxyketone compounds represented by the following general formula 1. Embedded image (However, R 1 = H, CH 3 , C 2 H 5. Also, OR 1
The groups represent one to three aromatic rings. )
JP11061374A 1999-03-09 1999-03-09 Bleaching cosmetic Pending JP2000256165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11061374A JP2000256165A (en) 1999-03-09 1999-03-09 Bleaching cosmetic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11061374A JP2000256165A (en) 1999-03-09 1999-03-09 Bleaching cosmetic

Publications (1)

Publication Number Publication Date
JP2000256165A true JP2000256165A (en) 2000-09-19

Family

ID=13169353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11061374A Pending JP2000256165A (en) 1999-03-09 1999-03-09 Bleaching cosmetic

Country Status (1)

Country Link
JP (1) JP2000256165A (en)

Similar Documents

Publication Publication Date Title
DE60105544T2 (en) Dyeing composition, method for the preparation and use for coloring the skin and / or the keratin fibers
US20100104524A1 (en) Cosmetic composition for skin whitening comprising arctiin, arctigenin or the mixture thereof as active
JP2986262B2 (en) Whitening cosmetics
EP1172090B1 (en) Skin dyeing compositions comprising dihydroxyacetone and a flavylium salt non substituted in position 3
EP1424060B1 (en) Agent for dyeing material containing human keratin, with at least two components and method for dyeing
JP2000256165A (en) Bleaching cosmetic
JP3071293B2 (en) Whitening cosmetics
JP2000256166A (en) Bleaching cosmetic
JP2731329B2 (en) Skin cosmetics
JP2942409B2 (en) Whitening cosmetics
JP3023249B2 (en) Whitening cosmetics
JP3649889B2 (en) Whitening cosmetics
JP2000169323A (en) Skin beautifying cosmetic
JPH0363211A (en) Cosmetic for fair skin and beauty
JP2000319125A (en) Bleaching cosmetic
JPH0859452A (en) Skin cosmetic
JPH11171756A (en) Skin whitening cosmetic
JP2671244B2 (en) Whitening cosmetics
CN113712843B (en) Whitening composition, essence containing same and preparation method of essence
JP3197651B2 (en) Skin cosmetics
JP2001048767A (en) Bleaching preparation
CA2065804A1 (en) Hyperpigmentation of skin
JP3045604B2 (en) Whitening cosmetics
JPH06145039A (en) Skin cosmetic
JP2511816B2 (en) Whitening cosmetics

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20040805

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20040806