JP6111176B2 - 抗ニキビ活性能を有する皮膚外用剤 - Google Patents
抗ニキビ活性能を有する皮膚外用剤 Download PDFInfo
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- JP6111176B2 JP6111176B2 JP2013203102A JP2013203102A JP6111176B2 JP 6111176 B2 JP6111176 B2 JP 6111176B2 JP 2013203102 A JP2013203102 A JP 2013203102A JP 2013203102 A JP2013203102 A JP 2013203102A JP 6111176 B2 JP6111176 B2 JP 6111176B2
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- acne
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- active ingredient
- skin
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Description
0.250重量%のポリビニルアルコール(PVA EG05:日本合成化学工業製)水溶液80mLを調製し貧溶媒とした。乳酸・グリコール酸共重合体(PLGA7520:和光純薬工業製)2gをアセトン40mLに溶解し、エタノール20mLで溶解したトタロール(MENDE BIOTEC LIMITED製)20mgを添加、混合して良溶媒とした。この良溶媒を、先の貧溶媒中に40℃、400rpmで攪拌下、一定速度(4mL/分)で滴下し、良溶媒の貧溶媒中への拡散によってトタロール内包PLGAナノ粒子の懸濁液を得た。
0.250重量%のポリビニルアルコール(PVA EG05:日本合成化学工業製)水溶液80mLを調製し貧溶媒とした。乳酸・グリコール酸共重合体(PLGA7520:和光純薬工業製)2gをアセトン40mLに溶解し、エタノール20mLで溶解したイソプロピルメチルフェノール(IPMP、大阪化成製)40mgを添加、混合して良溶媒とした。この良溶媒を先の貧溶媒中に40℃、400rpmで攪拌下、一定速度(4mL/分)で滴下し、良溶媒の貧溶媒中への拡散によって、IPMP内包PLGAナノ粒子の懸濁液を得た。
0.250重量%のポリビニルアルコール(PVA EG05:日本合成化学工業製)水溶液80mLを調製し貧溶媒とした。乳酸・グリコール酸共重合体(PLGA7520:和光純薬工業製)2gをアセトン40mLに溶解し、エタノール20mLで溶解したセージエキス(一丸ファルコス製)20mgを添加、混合して良溶媒とした。この良溶媒を先の貧溶媒中に40℃、400rpmで攪拌下、一定速度(4mL/分)で滴下し、良溶媒の貧溶媒中への拡散によって、セージエキス内包PLGAナノ粒子の懸濁液を得た。
0.250重量%のポリビニルアルコール(PVA EG05:日本合成化学工業製)水溶液80mLを調製し貧溶媒とした。乳酸・グリコール酸共重合体(PLGA7520:和光純薬工業製)2gをアセトン40mLに溶解し、エタノール20mLで溶解したβ−グリチルレチン酸(アルプス薬品工業製)10mgを添加、混合して良溶媒とした。この良溶媒を先の貧溶媒中に40℃、400rpmで攪拌下、一定速度(4mL/分)で滴下し、良溶媒の貧溶媒中への拡散によって、β−グリチルレチン酸内包PLGAナノ粒子の懸濁液を得た。
実施例1で製造したトタロール内包PLGAナノ粒子を、パウダー基材中に0.1重量%の割合で分散させてパウダー化粧料を作製した。パウダー化粧料中のトタロールの配合量は0.001重量%である。パウダー基材中の配合成分を表1に示す。
[試験例1]
上記実施例5及び比較例1において作製したパウダー化粧料によるニキビ治療、予防効果を、モニター試験により評価した。ニキビが気になると感じる被験者(年齢26歳の女性)に1日2回の洗顔後、抗ニキビ成分を含まないローションで肌を整えた後に、顔の右半分及び左半分に、それぞれ実施例5、比較例1のパウダー化粧料を塗布してもらった。そして、使用開始から0日後、6日後、21日後、60日後にニキビの多い箇所の写真を撮影し、ニキビ治癒、予防効果を評価した。なお、顔の左半分については、試験開始後8日目までは比較例1のパウダー化粧料を塗布し、その後は実施例5のパウダー化粧料を塗布した。結果を図1、図2に示す。
[試験例2]
ニキビが気になると感じる被験者(年齢22歳の男性)に1日2回の洗顔後、抗ニキビ成分を含まないローションで肌を整えた後に、顔の右半分及び左半分に、それぞれ実施例5、比較例1のパウダー化粧料を塗布してもらった。そして、使用開始から0日後、6日後、23日後、35日後にニキビの多い箇所の写真を撮影し、ニキビ治癒、予防効果を評価した。結果を図3、図4に示す。
[試験例3]
実施例2で製造したIPMP内包PLGAナノ粒子を、実施例5で用いたパウダー基材中に0重量%(未配合)、0.05重量%、0.1重量%、及び0.2重量%の割合で分散させてパウダー化粧料を作製した。また、IPMP単体を、実施例5で用いたパウダー基材中に0.1重量%の割合で分散させてパウダー化粧料を作製した。ニキビが気になると感じる8名の被験者(年齢20〜40歳の男女)に1日2回の洗顔後、抗ニキビ成分を含まないローションで肌を整えた後に、顔の半分にパウダー化粧料を塗布してもらった(各パウダー化粧料につき被験者2名)。そして、使用開始から1週間後、2週間後、4週間後における炎症性ニキビに対するニキビ治癒、予防効果を評価した。結果を表2に示す。
[試験例4]
実施例5で作製したパウダー化粧料に、実施例3で製造したセージエキス内包PLGAナノ粒子を0重量%(未配合)、0.05重量%、0.1重量%、及び0.2重量%の割合で分散させてパウダー化粧料を作製した。ニキビが気になると感じる8名の被験者(年齢20〜40歳の男女)に1日2回の洗顔後、抗ニキビ成分を含まないローションで肌を整えた後に、顔の半分にパウダー化粧料を塗布してもらった(各パウダー化粧料につき被験者2名)。そして、使用開始から1週間後、2週間後、4週間後における、新たなニキビの抑制(予防)効果、及び、既発生ニキビに対する治癒、炎症抑制効果を評価した。結果を表3に示す。
[試験例5]
実施例5で作製したパウダー化粧料に、実施例4で製造したβ−グリチルレチン酸内包PLGAナノ粒子を0重量%(未配合)、0.05重量%、0.1重量%、及び0.2重量%の割合で分散させてパウダー化粧料を作製した。ニキビが気になると感じる3名の被験者(年齢20〜40歳の男女)に1日2回の洗顔後、抗ニキビ成分を含まないローションで肌を整えた後に、顔の半分にパウダー化粧料を塗布してもらった(各パウダー化粧料につき被験者2名)。そして、使用開始から1週間後、2週間後、4週間後における、炎症性ニキビ及び面皰に対するニキビ治療、予防効果を評価した。結果を表4に示す。なお、面皰とは炎症は起きていないが、皮脂によって毛穴が閉塞されたニキビの原因になるような状態をいう。
Claims (7)
- 乳酸・グリコール酸共重合体で形成された生体適合性ナノ粒子の内部に、抗アクネ菌活性成分としてトタロールおよびイソプロピルメチルフェノールから選ばれた少なくとも1つを内包率0.01重量%以上10重量%以下で内包させた抗アクネ菌活性成分含有ナノ粒子をパウダー基材中または液中に分散させて成る、抗ニキビ活性能を有する皮膚外用剤。
- 乳酸・グリコール酸共重合体で形成された生体適合性ナノ粒子の内部に、抗炎症性成分としてセージエキスおよびβ−グリチルレチン酸から選ばれた少なくとも1つを内包率0.5重量%〜1重量%で内包させた抗炎症性成分含有ナノ粒子を前記パウダー基材中または液中にさらに分散させて成る請求項1に記載の皮膚外用剤。
- 前記抗アクネ菌活性成分含有ナノ粒子または前記抗炎症性成分含有ナノ粒子の内部または表面の少なくとも一方に皮脂分泌抑制・ケラチノサイト角化亢進抑制成分を担持させた皮脂分泌抑制・ケラチノサイト角化亢進抑制成分含有ナノ粒子をさらに分散させて成る請求項1又は請求項2に記載の皮膚外用剤。
- 前記皮脂分泌抑制・ケラチノサイト角化亢進抑制成分が、5α−リダクターゼ活性阻害成分であるβ−グリチルレチン酸、ペパーミント抽出液、チョウジ抽出液、キウイエキス、アボカド油脂、ケープアロエ、アロエベラエキス、センブリエキス、サンショウエキス、ヒオウギエキス、ホウセンカエキス、ザクロエキスから選ばれた1種以上、若しくは女性ホルモン様作用成分としてエストロゲン、エチニルエストラジオール、ダイズエキス、イソフラボン、ヒオウギエキス、プエラリアミリフィカ根エキスから選ばれた1種以上であることを特徴とする請求項3に記載の皮膚外用剤。
- 前記抗アクネ菌活性成分含有ナノ粒子および前記抗炎症性成分含有ナノ粒子の平均粒子径が、30nm以上300nm以下であることを特徴とする請求項1乃至請求項4のいずれか1項に記載の皮膚外用剤。
- 前記抗アクネ菌活性成分含有ナノ粒子および前記抗炎症性成分含有ナノ粒子が賦形剤によって複合化されており、前記賦形剤で形成される前記複合粒子の外層に、前記抗アクネ菌活性成分、前記抗炎症性成分、前記皮脂分泌抑制・ケラチノサイト角化亢進抑制成分の少なくとも1つを内包したことを特徴とする請求項1乃至請求項5のいずれか1項に記載の皮膚外用剤。
- 前記パウダー基材中または液中に他の抗ニキビ活性成分を配合したことを特徴とする請求項1乃至請求項6のいずれか1項に記載の皮膚外用剤。
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CN109730946A (zh) * | 2019-03-09 | 2019-05-10 | 广州市壹美和生物科技有限公司 | 活性祛痘液以及含有活性祛痘液的乳液、精华液和面霜 |
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CN109730946A (zh) * | 2019-03-09 | 2019-05-10 | 广州市壹美和生物科技有限公司 | 活性祛痘液以及含有活性祛痘液的乳液、精华液和面霜 |
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