JP3701743B2 - Hair restorer - Google Patents

Hair restorer Download PDF

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Publication number
JP3701743B2
JP3701743B2 JP14945296A JP14945296A JP3701743B2 JP 3701743 B2 JP3701743 B2 JP 3701743B2 JP 14945296 A JP14945296 A JP 14945296A JP 14945296 A JP14945296 A JP 14945296A JP 3701743 B2 JP3701743 B2 JP 3701743B2
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JP
Japan
Prior art keywords
hair
present
polyhydroxy fatty
acid
restorer
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JP14945296A
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Japanese (ja)
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JPH101421A (en
Inventor
邦郎 辻
輝夫 中村
恭子 金井
靖規 稲岡
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Pola Chemical Industries Inc
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Pola Chemical Industries Inc
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Priority to JP14945296A priority Critical patent/JP3701743B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、育毛剤及びこれを含有する化粧料又は医薬品等の組成物に関し、詳しくは、育毛効果に優れ、且つ、高い安全性を有する育毛剤及びこれを含有する化粧料又は医薬品等の組成物である。
【0002】
【従来の技術】
いつまでも豊富で黒く美しい頭髪を維持することは、老若男女を問わず、多くの人の願いであった。しかしながら、社会的なストレスや対人関係でのストレス等、ストレスの多い現代社会に於いては、かかるストレスが頭髪へ悪影響を及ぼし、脱毛症等の頭髪に係わるトラブルを抱える人の数は、毎年うなぎ登りに増大している。
【0003】
この様な状況を反映して、これまでに、ヨクイニン、イチョウ、ショウガ等の生薬抽出エキス、ビタミンEやアロキサジン、アデノシン−3’,5’−サイクリックモノフォスフェート(c−AMP)等が育毛剤として開発されてきた。
【0004】
しかしながら、これらの育毛剤は、いずれも育毛作用が今一つである上に、なかにはブームを呼んだ101の様に、皮膚炎などの副作用をおこす等、安全上好ましくないものもあり、今のところ、実用に耐えられるものが得られていない。それ故、育毛作用に優れ、且つ、安全性の優れた育毛剤の開発が望まれていた。
【0005】
又、一方、例えば、9,10−ジヒドロキシオクタデカン酸の様に、ポリヒドロキシ脂肪酸の多くは既知の化合物であるが、これらに育毛作用があることは知られておらず、従って、育毛作用を期待して9,10−ジヒドロキシオクタデカン酸等のポリヒドロキシ脂肪酸を化粧料又は医薬品に含有させることは行われていなかった。
【0006】
【発明が解決しようとする課題】
本発明は、かかる観点に鑑みなされたものであり、育毛効果に優れ、且つ、高い安全性を有する育毛剤並びにこれを含有する頭髪用の化粧料及び医薬組成物等の組成物を提供することを課題とする。
【0007】
【課題を解決するための手段】
本発明者らは、上記課題を解決するために、漢方生薬及びその抽出物並びにその精製物について、育毛作用を指標に、広くスクリーニングを重ねた結果、山査子等に含まれるポリヒドロキシ脂肪酸、特に9,10−ジヒドロキシオクタデカン酸が優れた育毛作用を有することを見いだし、発明を完成させた。
【0008】
すなわち本発明は、ポリヒドロキシ脂肪酸、ポリヒドロキシ脂肪酸のエステル及び生理的に許容されるこれらの塩から選ばれる1種又は2種以上を有効成分とする育毛剤である。
【0009】
ポリヒドロキシ脂肪酸としては、炭素数が10〜24であるものが好ましく、具体的には9,10−ジヒドロキシオクタデカン酸が特に好ましい。
また、本発明は前記育毛剤を含有する化粧品又は医薬組成物等の組成物である。本発明の組成物中の育毛剤の含有量は、組成物全量に対して0.01〜10重量%とすることが好ましい。
【0010】
【発明の実施の形態】
以下、本発明の実施の形態について詳細に説明する。
【0011】
(1)本発明の育毛剤
本発明の育毛剤は、ポリヒドロキシ脂肪酸、ポリヒドロキシ脂肪酸のエステル及び生理的に許容されるこれらの塩から選ばれる1種又は2種以上を有効成分とする。
【0012】
ポリヒドロキシ脂肪酸は一分子内に二個以上の水酸基を有する脂肪酸であれば特に制限はないが、好ましくは炭素数が10〜24のポリヒドロキシ脂肪酸、より好ましくは炭素数が12〜20のポリヒドロキシ脂肪酸が好適である。例えば、2,3−ジヒドロキシデカン酸、9,10−ジヒドロキシペンタデカン酸、9,10−ジヒドロキシヘキサデカン酸、9,10−ジヒドロキシオクタデカン酸、9,10,11,12−テトラヒドロキシオクタデカン酸等が好適に例示できる。これらのポリヒドロキシ脂肪酸としては何れも既知の物質を用いることが出来る。これらのうち特に好ましいものは、9,10−ジヒドロキシオクタデカン酸である。この物質は既に市販されている。
【0013】
又、上記のポリヒドロキシ脂肪酸の塩も用いることが出来る。塩としては生理的に許容されるものであれば特段の限定無く用いることが出来、例えば、ナトリウムやカリウム等のアルカリ金属との塩、カルシウムやマグネシウム等のアルカリ土類金属との塩、アンモニウムとの塩、トリエチルアミンやトリエタノールアミン等の有機アミンとの塩、リジンやアルギニン等の塩基性アミノ酸との塩等が好ましく例示できる。
【0014】
又、ポリヒドロキシ脂肪酸のエステルはアルコールを過剰な状態にして、硫酸などの脱水触媒の存在下反応させることにより容易に得られる。エステルとしては炭素数1〜4のアルコールとのエステルが好ましく、メチルエステルが更に好ましい。
【0015】
本発明のポリヒドロキシ脂肪酸は、例えば、9,10−ジヒドロキシオクタデカン酸(和光純薬製)の様に、多くのものが市販されている。市販されていない物については、例えば、所望するポリヒドロキシ脂肪酸に対応する不飽和脂肪酸の二重結合をp−クロロ過安息香酸等を用いて酸化しエポキシドと為し、このエポキシドを酸等で加水開環すれば容易に得ることが出来る。
【0016】
又、山査子等の天然物から抽出単離することによってもポリヒドロキシ脂肪酸を得ることができる。抽出単離は通常の方法によれば良く、抽出は例えば単一溶媒又は混合溶媒を用いて、天然物の1〜10倍量の溶媒を加え、室温であれば数日、沸点付近の温度であれば数時間浸漬しておけばよい。溶媒としては中極性溶媒又は非極性溶媒が好ましく、例えば、メタノールやエタノール等のアルコール類、酢酸エチルや蟻酸メチル等のエステル類、アセトニトリル等のニトリル類、ジエチルエーテルやテトラヒドロフラン等のエーテル類、クロロホルムや塩化メチレン等のハロゲン化炭化水素類、アセトンやメチルエチルケトン等のケトン類等から選ばれる1種又は2種以上が好ましく例示できる。このようにして得られた抽出物は更に精製しても良い。精製も通常の方法によれば良く、例えば、シリカゲルやODS等を担体としたカラムクロマトグラフィーや液液抽出などが例示できる。
【0017】
本発明の育毛剤は、前記ポリヒドロキシ脂肪酸、ポリヒドロキシ脂肪酸のエステル又は生理的に許容されるこれらの塩を単独で用いても良いし、任意の2種又はそれ以上を混合して用いても良い。
【0018】
なお、本発明の育毛剤は、その作用機構は必ずしも明らかではないが、少なくとも毛髪の伸長促進に有効であり、毛髪の保全、毛髪の再生、発毛の促進、脱毛の抑制等の効果も期待される。
【0019】
また、育毛は毛髪を支えている皮膚と毛髪自身との両方の働きの成果であり、本発明の育毛剤は少なくともその一方に働きかけて育毛を促進するものと考えられる。
【0020】
(2)本発明の組成物
本発明の組成物は、上記の育毛剤、即ちポリヒドキシ脂肪酸、ポリヒドロキシ脂肪酸エステル及び生理的に許容されるこれらの塩から選ばれる1種又は2種以上を含有することを特徴とする。本発明の組成物は、少なくとも毛髪の伸長促進に有効であり、毛髪の保全、毛髪の再生、発毛の促進、脱毛の抑制等の効果も期待される。即ち、育毛用の化粧料並びに育毛用の皮膚外用医薬組成物が適した用途である。
【0021】
本発明の組成物における育毛剤の含有量は、一般的には、組成物全量に対して、0.01〜10重量%とすることが好ましい。これは、配合量が0.01重量%未満では、充分な育毛効果が期待できない場合があり、10重量%を越えても効果が頭打ちになり経済的でないことがある為である。配合量は0.05〜5重量%がより好ましく、0.05〜3重量%が更に好ましい。
【0022】
(2−1)本発明の化粧料
本発明の頭髪用の化粧料は、上記のポリヒドロキシ脂肪酸、ポリヒドロキシ脂肪酸のエステル及び生理的に許容されるこれらの塩から選ばれる1種又は2種以上を育毛剤として配合したものである。
【0023】
本発明の頭髪用の化粧料の剤型は、特に限定されるものではなく、例えば、ヘアトニック、シャンプー、リンス、ポマード、ヘアローション、ヘアクリーム、ヘアトリートメント等の通常、頭髪用の化粧料として用いられているものが挙げられる。これらの化粧料は通常の方法に従って製造すれば良い。
【0024】
又、本発明の頭髪用の化粧料には、通常、頭髪用化粧料に適用される炭化水素類、ロウ類、油脂類、エステル類、高級脂肪酸類、高級アルコール類、界面活性剤類、香料、色素、防腐剤、抗酸化剤、紫外線吸収剤、アルコール類、pH調整剤、各種薬効成分等を適宜選択して配合することができる。更に、ビタミンEニコチネートやエストラジオール等の育毛作用を有する物質を配合することもできる。
【0025】
(2−2)本発明の医薬組成物
本発明の医薬組成物は、ポリヒドロキシ脂肪酸、ポリヒドロキシ脂肪酸のエステル及び生理的に許容されるこれらの塩から選ばれる1種又は2種以上を育毛剤として配合したものである。
【0026】
本発明の医薬組成物は、通常の脱毛等よりも、より急性の、又はより重篤な脱毛に対して用いても良い。この様な脱毛としては、例えば、精神的な圧迫に起因する円形脱毛症、抗癌剤などの薬物の副作用として現れる脱毛などが挙げられる。本発明の医薬組成物を、例えば抗癌剤などの投与に先立って投与すれば、副作用としての脱毛の抑制が期待され、抗癌剤などの治療終了後に投与すれば、毛髪の回復の促進が期待される。
【0027】
本発明の医薬組成物では、本発明と同類の医薬組成物で通常用いられている任意成分を配合することが出来る。この様な任意成分としては、例えば、炭化水素類、ロウ類、油脂類、エステル類、高級脂肪酸類、高級アルコール類、界面活性剤類、香料、色素、防腐剤、抗酸化剤、紫外線吸収剤、アルコール類、pH調整剤等が挙げられる。更に、ビタミンEニコチネートやエストラジオール等の育毛作用を有する他の物質を配合することもできる。
【0028】
本発明の医薬組成物は、頭部皮膚に経皮的に投与するのが好ましい。したがって、本発明の医薬組成物の剤型は、経皮的に投与しやすい剤型であることが望ましく、具体的には、液体、水中油乳化物、油中水乳化物等の剤型が挙げられる。なお、製剤は通常の方法により行えば良い。
【0029】
【実施例】
以下に例を挙げて本発明の実施例について詳細に説明するが、本発明がこれらの例にのみ限定されないことは言うまでもない。
【0030】
【実施例1】
(育毛剤の製造例)
9,10−ジヒドロキシオクタデカン酸(和光純薬製)2gをメタノールに溶かし、これに1gのジアゾメタンを加え反応させ、減圧濃縮した後シリカゲルカラムクロマトグラフィー(溶出溶媒;クロロホルム:メタノール=100:0〜50:50)9,10−ジヒドロキシオクタデカン酸メチル1.9gを得た。
【0031】
【実施例2】
(化粧料の配合例:ヘアローション)
次に示す処方成分を秤りとり、室温で撹拌して可溶化しヘアローションを得た。なお、配合量は重量%である。
【0032】
【表1】

Figure 0003701743
【0033】
【実施例3】
(化粧料の配合例:ヘアトニック)
次に示す処方成分を秤りとり、室温で撹拌して可溶化しヘアトニックを得た。なお、配合量は重量%である。
【0034】
【表2】
Figure 0003701743
【0035】
【実施例4】
(化粧料の配合例:ヘアクリーム)
次に示す処方に従ってヘアクリームを作製した。即ち、A、Bをそれぞれ80℃に加熱溶解し、AにBを撹拌しながら、徐々に加え、更にCを加えた後、冷却しヘアクリームを得た。なお、配合量は重量%である。
【0036】
【表3】
Figure 0003701743
【0037】
【実施例5】
(化粧料の配合例:ヘアトリートメント)
次に示す処方に従って、ヘアトリートメントを作製した。即ち、A、Bをそれぞれ80℃に加熱溶解し、AにBを撹拌しながら、徐々に加え、更にCを加えた後、冷却しヘアトリートメントを得た。なお、配合量は重量%である。
【0038】
【表4】
Figure 0003701743
【0039】
【実施例6】
(化粧料の配合例:シャンプー)
次に示す処方成分を秤取り、80℃で加熱溶解し、冷却しシャンプーを得た。なお、配合量は重量%である。
【0040】
【表5】
Figure 0003701743
【0041】
【実施例7】
(医薬組成物の配合例)
次に示す処方成分を秤取り、室温で撹拌可溶化して医薬組成物を得た。なお、配合量は重量%である。
【0042】
【表6】
Figure 0003701743
【0043】
以下に実施例を挙げて、本発明の育毛剤の作用について詳細に説明する。
【0044】
【実施例8】
(経皮刺激試験(局所毒性試験))
1群6匹のハートレー系白色種モルモットの背部を3cm四方に剃毛し、9,10−ジヒドロキシオクタデカン酸又は9,10−ジヒドロキシオクタデカン酸メチルを1%含む70%エタノール水溶液を、それぞれ各群のモルモットの剃毛部に1日1回、0.05mlずつ5日間連続投与した。投与開始後6日目に、本邦パッチテスト基準(日本皮膚科学会)により、経皮刺激性を評価した。即ち、−:無反応、±:擬陽性反応、+:陽性反応、++:浮腫を伴った反応、の基準である。
【0045】
結果は全ての動物が−(無反応)を示した。これより、本発明の育毛剤である、9,10−ジヒドロキシオクタデカン酸及び9,10−ジヒドロキシオクタデカン酸メチルは安全性に優れていることが判った。
【0046】
【実施例9】
(育毛作用)
1群5匹ずつ10週令のC3Hマウスの背部を2cm四方に剃毛し、翌日、本発明の育毛剤である9,10−ジヒドロキシオクタデカン酸又は9,10−ジヒドロキシオクタデカン酸メチルが表7に示すような各種ドーズ(mg/匹)となるように濃度を調製した70%エタノール水溶液を、それぞれ0.05mlずつ各群のマウスの剃毛部に塗布した。また、比較例としてビタミンEがドーズ0.6mg/匹となるように濃度を調製した70%エタノール水溶液を、コントロールとして70%エタノール水溶液を、それぞれ0.05mlずつ各群のマウスの剃毛部に塗布した。塗布後14日に、毛成長度のレベルを次の基準により、肉眼判定した。即ち、評点0:コントロール群のマウスの毛の生え方に同じ、評点1:コントロール群のマウスの毛の生え方よりわずかに早い、評点2:コントロール群のマウスの毛の生え方より明らかに早い、評点4:コントロール群のマウスの毛の生え方より著しく早い、の基準である。
【0047】
本発明の育毛剤を塗布した各群の結果を平均評点として表7に示す。一方、ビタミンEを塗布した群の平均評点は1.9であった。
この結果より本発明の育毛剤は、低濃度であっても優れた育毛効果を有することが明らかとなった。
【0048】
【表7】
Figure 0003701743
【0049】
【発明の効果】
本発明の育毛剤は安全性が高い上に、優れた育毛効果を有するので、大変有益であり、本願発明の育毛剤を混合することにより安全で育毛効果が高い化粧料及び医薬組成物を得ることができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hair restorer and a composition such as a cosmetic or a medicine containing the same. Specifically, the hair restorer is excellent in hair growth effect and has high safety, and a composition such as a cosmetic or medicine containing the same. It is a thing.
[0002]
[Prior art]
Maintaining abundant, black and beautiful hair forever has been a desire of many people, regardless of gender. However, in today's stressful society, such as social stress and interpersonal stress, such stress has an adverse effect on hair, and the number of people with troubles related to hair such as alopecia is an eel every year. Increasing to climb.
[0003]
Reflecting this situation, so far herbal extracts such as Yokuinin, Ginkgo and Ginger, vitamin E, alloxazine, adenosine-3 ', 5'-cyclic monophosphate (c-AMP), etc. Has been developed as an agent.
[0004]
However, these hair restorers are not preferable for safety, such as causing side effects such as dermatitis, etc. What can withstand practical use has not been obtained. Therefore, it has been desired to develop a hair restorer that is excellent in hair-growth action and excellent in safety.
[0005]
On the other hand, for example, many of the polyhydroxy fatty acids are known compounds, such as 9,10-dihydroxyoctadecanoic acid. Thus, no polyhydroxy fatty acid such as 9,10-dihydroxyoctadecanoic acid is contained in cosmetics or pharmaceuticals.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of such a viewpoint, and provides a hair-restoring agent having excellent hair-growth effect and high safety, and a composition such as a cosmetic for hair and a pharmaceutical composition containing the same. Is an issue.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present inventors have extensively screened herbal medicines, extracts thereof and purified products thereof using hair growth action as an index. As a result, polyhydroxy fatty acids contained in Yamako, etc., especially 9 , 10-dihydroxyoctadecanoic acid was found to have an excellent hair-growth effect, and the invention was completed.
[0008]
That is, this invention is a hair restorer which uses as an active ingredient 1 type, or 2 or more types chosen from polyhydroxy fatty acid, ester of polyhydroxy fatty acid, and these physiologically acceptable salts.
[0009]
As the polyhydroxy fatty acid, those having 10 to 24 carbon atoms are preferable, and specifically, 9,10-dihydroxyoctadecanoic acid is particularly preferable.
Moreover, this invention is compositions, such as cosmetics or a pharmaceutical composition containing the said hair restorer. The content of the hair restorer in the composition of the present invention is preferably 0.01 to 10% by weight based on the total amount of the composition.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
[0011]
(1) Hair restorer of the present invention The hair restorer of the present invention contains, as an active ingredient, one or more selected from polyhydroxy fatty acids, esters of polyhydroxy fatty acids and physiologically acceptable salts thereof.
[0012]
The polyhydroxy fatty acid is not particularly limited as long as it is a fatty acid having two or more hydroxyl groups in one molecule, but is preferably a polyhydroxy fatty acid having 10 to 24 carbon atoms, more preferably a polyhydroxy fatty acid having 12 to 20 carbon atoms. Fatty acids are preferred. For example, 2,3-dihydroxydecanoic acid, 9,10-dihydroxypentadecanoic acid, 9,10-dihydroxyhexadecanoic acid, 9,10-dihydroxyoctadecanoic acid, 9,10,11,12-tetrahydroxyoctadecanoic acid and the like are preferable. It can be illustrated. Any known substance can be used as these polyhydroxy fatty acids. Of these, 9,10-dihydroxyoctadecanoic acid is particularly preferred. This material is already commercially available.
[0013]
Moreover, the salt of said polyhydroxy fatty acid can also be used. Any salt that is physiologically acceptable can be used without particular limitation, for example, a salt with an alkali metal such as sodium or potassium, a salt with an alkaline earth metal such as calcium or magnesium, or ammonium. And salts with organic amines such as triethylamine and triethanolamine, and salts with basic amino acids such as lysine and arginine.
[0014]
The ester of polyhydroxy fatty acid can be easily obtained by making the alcohol excessive and reacting in the presence of a dehydration catalyst such as sulfuric acid. The ester is preferably an ester with an alcohol having 1 to 4 carbon atoms, and more preferably a methyl ester.
[0015]
Many polyhydroxy fatty acids of the present invention are commercially available, such as 9,10-dihydroxyoctadecanoic acid (manufactured by Wako Pure Chemical Industries, Ltd.). For non-commercial products, for example, the double bond of unsaturated fatty acid corresponding to the desired polyhydroxy fatty acid is oxidized with p-chloroperbenzoic acid or the like to form an epoxide, and this epoxide is hydrolyzed with an acid or the like. It can be easily obtained by opening the ring.
[0016]
Polyhydroxy fatty acids can also be obtained by extraction and isolation from natural products such as Yamako. Extraction isolation may be carried out by a usual method. For extraction, for example, using a single solvent or a mixed solvent, 1 to 10 times the amount of a natural product is added, and at room temperature for several days, at a temperature near the boiling point. If so, it should be immersed for several hours. The solvent is preferably a medium or nonpolar solvent, for example, alcohols such as methanol and ethanol, esters such as ethyl acetate and methyl formate, nitriles such as acetonitrile, ethers such as diethyl ether and tetrahydrofuran, chloroform and the like Preferred examples include one or more selected from halogenated hydrocarbons such as methylene chloride and ketones such as acetone and methyl ethyl ketone. The extract thus obtained may be further purified. Purification may be performed by a usual method, and examples thereof include column chromatography using silica gel or ODS as a carrier, liquid-liquid extraction, and the like.
[0017]
For the hair restorer of the present invention, the polyhydroxy fatty acid, the ester of polyhydroxy fatty acid or a physiologically acceptable salt thereof may be used alone, or any two or more of them may be used in combination. good.
[0018]
The action mechanism of the hair restorer of the present invention is not necessarily clear, but is effective at least for promoting hair elongation, and is also expected to have effects such as hair preservation, hair regeneration, hair growth promotion, and hair loss suppression. Is done.
[0019]
Further, hair growth is a result of the work of both the skin supporting the hair and the hair itself, and it is considered that the hair growth agent of the present invention works on at least one of them to promote hair growth.
[0020]
(2) Composition of the present invention The composition of the present invention contains one or more selected from the above hair restorer, that is, polyhydroxy fatty acid, polyhydroxy fatty acid ester and physiologically acceptable salts thereof. It is characterized by that. The composition of the present invention is effective at least for promoting hair elongation, and is also expected to have effects such as hair preservation, hair regeneration, hair growth promotion, and hair loss inhibition. That is, the cosmetics for hair growth and the skin external pharmaceutical composition for hair growth are suitable applications.
[0021]
In general, the content of the hair restorer in the composition of the present invention is preferably 0.01 to 10% by weight with respect to the total amount of the composition. This is because if the blending amount is less than 0.01% by weight, a sufficient hair-growth effect may not be expected, and if it exceeds 10% by weight, the effect reaches its peak and may not be economical. The blending amount is more preferably 0.05 to 5% by weight, still more preferably 0.05 to 3% by weight.
[0022]
(2-1) Cosmetics of the present invention The cosmetic for hair of the present invention is one or more selected from the above polyhydroxy fatty acids, esters of polyhydroxy fatty acids and physiologically acceptable salts thereof. Is formulated as a hair restorer.
[0023]
The dosage form of the cosmetics for hair of the present invention is not particularly limited. For example, hair cosmetics such as hair tonics, shampoos, rinses, pomades, hair lotions, hair creams and hair treatments are usually used. What is used is mentioned. What is necessary is just to manufacture these cosmetics in accordance with a normal method.
[0024]
The cosmetics for hair of the present invention usually include hydrocarbons, waxes, fats and oils, esters, higher fatty acids, higher alcohols, surfactants, and fragrances that are applied to hair cosmetics. , Pigments, preservatives, antioxidants, ultraviolet absorbers, alcohols, pH adjusters, various medicinal components and the like can be appropriately selected and blended. Furthermore, substances having hair-growth action such as vitamin E nicotinate and estradiol can be blended.
[0025]
(2-2) Pharmaceutical composition of the present invention The pharmaceutical composition of the present invention comprises one or more hair restoring agents selected from polyhydroxy fatty acids, esters of polyhydroxy fatty acids and physiologically acceptable salts thereof. As a blend.
[0026]
The pharmaceutical composition of the present invention may be used for more acute or more severe hair loss than normal hair loss or the like. Examples of such hair loss include alopecia areata due to mental pressure, and hair loss that appears as a side effect of drugs such as anticancer agents. If the pharmaceutical composition of the present invention is administered prior to administration of, for example, an anticancer agent, it is expected to suppress hair loss as a side effect, and if administered after completion of treatment of the anticancer agent or the like, it is expected to promote hair recovery.
[0027]
In the pharmaceutical composition of the present invention, optional components usually used in pharmaceutical compositions similar to the present invention can be blended. Examples of such optional components include hydrocarbons, waxes, fats and oils, esters, higher fatty acids, higher alcohols, surfactants, fragrances, dyes, preservatives, antioxidants, and ultraviolet absorbers. , Alcohols, pH adjusters and the like. Furthermore, other substances having hair-restoring action such as vitamin E nicotinate and estradiol can be blended.
[0028]
The pharmaceutical composition of the present invention is preferably administered transdermally to the head skin. Therefore, it is desirable that the dosage form of the pharmaceutical composition of the present invention is a dosage form that can be easily administered transdermally. Specifically, the dosage form such as liquid, oil-in-water emulsion, water-in-oil emulsion, etc. Can be mentioned. The preparation may be performed by a usual method.
[0029]
【Example】
EXAMPLES Examples of the present invention will be described in detail below with reference to examples, but it goes without saying that the present invention is not limited to these examples.
[0030]
[Example 1]
(Example of hair restorer production)
Dissolve 2 g of 9,10-dihydroxyoctadecanoic acid (manufactured by Wako Pure Chemical Industries, Ltd.) in methanol, add 1 g of diazomethane to this, react and concentrate under reduced pressure, and then silica gel column chromatography (elution solvent; chloroform: methanol = 100: 0-50). : 50) 1.9 g of methyl 9,10-dihydroxyoctadecanoate was obtained.
[0031]
[Example 2]
(Cosmetics formulation example: hair lotion)
The following formulation components were weighed and stirred at room temperature to solubilize and obtain a hair lotion. In addition, a compounding quantity is weight%.
[0032]
[Table 1]
Figure 0003701743
[0033]
[Example 3]
(Cosmetics formulation example: hair tonic)
The following formulation components were weighed and stirred at room temperature to solubilize and obtain a hair tonic. In addition, a compounding quantity is weight%.
[0034]
[Table 2]
Figure 0003701743
[0035]
[Example 4]
(Example of cosmetic composition: hair cream)
A hair cream was prepared according to the following formulation. That is, A and B were each heated and dissolved at 80 ° C., and B was gradually added to A while stirring, and further C was added, followed by cooling to obtain a hair cream. In addition, a compounding quantity is weight%.
[0036]
[Table 3]
Figure 0003701743
[0037]
[Example 5]
(Cosmetics formulation example: hair treatment)
A hair treatment was prepared according to the following formulation. That is, A and B were each heated and dissolved at 80 ° C., and B was gradually added to A while stirring, and further C was added, followed by cooling to obtain a hair treatment. In addition, a compounding quantity is weight%.
[0038]
[Table 4]
Figure 0003701743
[0039]
[Example 6]
(Cosmetics formulation example: shampoo)
The following formulation components were weighed, heated and dissolved at 80 ° C., and cooled to obtain a shampoo. In addition, a compounding quantity is weight%.
[0040]
[Table 5]
Figure 0003701743
[0041]
[Example 7]
(Formulation example of pharmaceutical composition)
The following formulation components were weighed and solubilized with stirring at room temperature to obtain a pharmaceutical composition. In addition, a compounding quantity is weight%.
[0042]
[Table 6]
Figure 0003701743
[0043]
Hereinafter, examples will be given to explain in detail the action of the hair restorer of the present invention.
[0044]
[Example 8]
(Dermal irritation test (local toxicity test))
A group of six Hartley white guinea pigs were shaved on the back 3 cm square, and 70% ethanol aqueous solution containing 1% of 9,10-dihydroxyoctadecanoic acid or methyl 9,10-dihydroxyoctadecanoate was added to each group. 0.05 ml of each guinea pig shaved area was administered once a day for 5 consecutive days. On day 6 after the start of administration, transdermal irritation was evaluated according to the Japanese patch test standard (Japan Dermatological Association). That is,-: no reaction, ±: false positive reaction, +: positive reaction, ++: reaction with edema.
[0045]
As a result, all animals showed-(no response). From this, it was found that the 9,10-dihydroxyoctadecanoic acid and methyl 9,10-dihydroxyoctadecanoate, which are hair restorers of the present invention, are excellent in safety.
[0046]
[Example 9]
(Hair growth action)
Each group of 5 mice, 10 weeks old C3H mice were shaved back 2 cm square, and the next day, 9,10-dihydroxyoctadecanoic acid or methyl 9,10-dihydroxyoctadecanoate, which is the hair restorer of the present invention, is shown in Table 7. 0.05 ml each of 70% ethanol aqueous solution whose concentration was adjusted to various doses (mg / animal) as shown was applied to the shaved part of each group of mice. Further, as a comparative example, a 70% ethanol aqueous solution whose concentration was adjusted to a dose of 0.6 mg / animal of vitamin E as a control, and 0.05 ml each of a 70% ethanol aqueous solution as a control were applied to the shaved part of each group of mice. Applied. On the 14th day after application, the level of hair growth was determined by the naked eye according to the following criteria. That is, score 0: the same as the hair growth of the mice in the control group, score 1: slightly faster than the hair growth of the mice in the control group, score 2: clearly faster than the hair growth of the mice in the control group , Score 4: It is a criterion of being significantly faster than the hair growth of the mice in the control group.
[0047]
The results of each group to which the hair restorer of the present invention was applied are shown in Table 7 as average scores. On the other hand, the average score of the group to which vitamin E was applied was 1.9.
From these results, it was revealed that the hair restorer of the present invention has an excellent hair-growth effect even at a low concentration.
[0048]
[Table 7]
Figure 0003701743
[0049]
【The invention's effect】
The hair restorer of the present invention has high safety and has an excellent hair growth effect, so it is very useful, and by mixing the hair restorer of the present invention, a safe and high hair growth effect cosmetic and pharmaceutical composition are obtained. be able to.

Claims (4)

9,10−ジヒドロキシオクタデカン酸、9,10−ジヒドロキシオクタデカン酸のエステル及び生理的に許容されるこれらの塩から選ばれる1種又は2種以上からなる育毛剤。  A hair restorer comprising one or more selected from 9,10-dihydroxyoctadecanoic acid, esters of 9,10-dihydroxyoctadecanoic acid and physiologically acceptable salts thereof. 請求項1に記載の育毛剤を含有する頭髪用の化粧料組成物。 A cosmetic composition for hair containing the hair restorer according to claim 1. 請求項1に記載の育毛剤を含有する頭髪異常症用の医薬組成物。 A pharmaceutical composition for hair dysfunction containing the hair-restoring agent according to claim 1 . 育毛剤の含有量が、組成物全量に対して0.01〜10重量%である請求項2又は3に記載の組成物。 The composition according to claim 2 or 3, wherein the content of the hair restorer is 0.01 to 10% by weight relative to the total amount of the composition.
JP14945296A 1996-06-11 1996-06-11 Hair restorer Expired - Fee Related JP3701743B2 (en)

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