護膚品
化學(xué)成分
KIEHL'S
科顏氏
契爾氏
基本信息
品牌:KIEHL'S “科顏氏”“契爾氏”
產(chǎn)品名:Powerful-Strength Line-Reducing Concentrate 祛皺緊膚精華液
功效:Decrease Appearance of Fine Lines and Wrinkles, and Improve Radiance and Texture 減少細紋和皺紋飘痛,改善肌膚光澤和質(zhì)地
重點成分:12.5% VITAMIN C 維他命C + Hyaluronic Acid 玻尿酸
成分解析
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Propylene Glycol
中文名:丙二醇
作用:皮膚調(diào)理劑 - 保濕
降粘劑
溶劑
香料
特性:- enhance the appearance of skin by reducing flaking and restoring suppleness 通過減少角質(zhì)剝落和恢復(fù)皮膚柔軟來提高皮膚外觀
- penetration enhancer 有滲透促進作用
警告:
- Classified as skin irritant.(皮膚刺激物)-- National Library of Medicine
It has been associated with irritant and allergic contact dermatitis as well as contact urticaria in humans.(有限的證據(jù)顯示該成分與刺激性/過敏性接觸皮炎、接觸性蕁麻疹有關(guān))-- CIR (Cosmetic Ingredient Review)
Patients with eczema should use products containing Propylene Glycol with caution.(濕疹患者慎用) - Subject to concentration or use limitations(有濃度和使用限制) --Cosmetic Ingredient Review Assessments
- It should not be applied to damaged or burned skin. (破損皮膚禁用)
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Dimethicone
中文名:聚二甲基硅氧烷
作用:皮膚調(diào)理劑 - 保濕
皮膚保護劑 - 閉塞特性可防水
降粘劑
溶劑
特性:- prevents water loss by forming a hydrating barrier on the skin 通過在皮膚上形成保濕屏障來防止水分流失
- creating a subtle gloss that feels smooth and silky to touch 當應(yīng)用于皮膚時帮匾,產(chǎn)生微妙的光澤笋轨,感覺光滑柔滑。
can fill in fine lines/wrinkles on the face, giving it a temporary “plump” look 可以在臉上填充細紋/皺紋,使其具有暫時的“豐滿”外觀 - As a non-comedogenic ingredient, it provides a significant amount of emollience and coverage to the skin, without adding any heaviness 作為非粉刺成分,它為皮膚提供了大量的潤膚和覆蓋忿晕,而不會增加任何沉重感
- enhance the light refractability of other ingredients 可以提高其他成分的光折射性
- has a unique fluidity that makes it easily spreadable 擁有獨特流動性,易于涂抹
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Glycerin
中文名:丙三醇(甘油)
作用:皮膚調(diào)理劑 - 保濕
皮膚保護劑 - 閉塞特性可防水
特性:- attracts water to skin and helps skin to feel smoother and softer 吸收水分至肌膚趟章,幫助肌膚恢復(fù)正常水合杏糙,變得更加光滑而柔軟
- helps skin cells mature properly that spit out lipids to help form the skin's protective barrier 促進細胞成熟慎王,從而分泌脂質(zhì)保護肌膚
警告:
- Restricted in cosmetics (化妝品中限制使用)-- Canada - Prohibited and Restricted Cosmetics Ingredients
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Ascorbic Acid
中文名:抗壞血酸(維生素C)
作用:抗氧化劑
PH調(diào)節(jié)劑
特性:- essential nutrient required for collagen production, tissue repair, and for the synthesis of neurotransmitters 是膠原蛋白生成蚓土、組織修復(fù)和神經(jīng)遞質(zhì)合成所必需的必需營養(yǎng)素
- slow deterioration caused by exposure to the air 減緩由暴露于空氣引起的變質(zhì)
維生素C是該產(chǎn)品的重點成分。這里針對維生素C的特性做了擴展調(diào)研赖淤。通過一篇發(fā)布于17年醫(yī)學(xué)衛(wèi)生期刊的論文蜀漆,提取了以下信息點:The Roles of Vitamin C in skin health (該文章收錄于美國國家醫(yī)學(xué)圖書館)
Vitamin C, as a water-soluble and charged molecule, is repelled by the physical barrier of the terminally differentiated epidermal cells. 維生素C是水溶性的帶電分子,被表皮細胞分化形成的物理屏障所排斥
. It is only when pH levels are below 4 and vitamin C is present as ascorbic acid that some penetration occurs. 只有當酸堿度低于4咱旱,且維生素C作為抗壞血酸存在時确丢,才會在表皮發(fā)生一些滲透
Dietary supplementation is therefore only expected to be effective in elevating skin vitamin C in individuals who have below-saturation plasma levels prior to intervention. 有研究顯示,通過飲食補給維生素C的方式吐限,僅對血漿濃度低于飽和的個體有效鲜侥。
文章也對維生素C的主要功能做了介紹:The promotion of collagen formation 促進膠原蛋白合成
is a potent antioxidant that can neutralise and remove oxidants, such as those found in environmental pollutants and after exposure to ultraviolet radiation. 是一種強效的抗氧化劑,可以中和環(huán)境污染物和紫外線輻射帶來的氧化作用
Inhibition of melanogenesis 抑制黑色素生成
Play a role in the differentiation of keratinocytes在角質(zhì)細胞的分化中發(fā)揮作用(促進傷口愈合)
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Ethylhexyl Palmitate
中文名:棕櫚酸乙基己酯
作用:皮膚調(diào)理劑 - 潤滑
溶劑
特性:- has a 'dry-slip' feel that is very similar to silicone's texture 擁有與硅相似的干滑感
警告:
- subject to concentration or use limitations(有濃度和使用限制)-- Cosmetic Ingredient Review Assessments
- Human irritant - strong evidence(已證實對人體有刺激性)-- Cosmetic Ingredient Review Assessments
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Cetyl PEG/PPG-10/1 Dimethicone
中文名:鯨蠟基二甲基硅氧烷共聚醇
作用:表面活性劑 - 乳化
皮膚調(diào)理劑 - 潤滑
特性:- keeps the water and oil parts of an emulsion from separating 防止乳液水油分離
- gives a smooth and soft look and eliminates any tackiness 使皮膚光滑柔軟诸典,減少粘性
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Dimethicone Crosspolymer
中文名:聚二甲基硅氧烷交聯(lián)聚合物
作用:增粘劑
乳液穩(wěn)定劑
特性:- would not penetrate the skin 不會滲透進皮膚
- not soluble in water 不溶于水
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Ascorbyl Glucoside
中文名:抗壞血酸葡糖苷
作用:抗氧化劑
在上文介紹維生素C的期刊文章中有提到:- 抗壞血酸糖苷作為一種衍生物描函,比抗壞血酸更為穩(wěn)定,能穿越皮膚表面物理屏障狐粱,深入滲透舀寓。在體內(nèi)轉(zhuǎn)化為抗壞血酸從而產(chǎn)生作用
- 但是這種衍生物在體內(nèi)的轉(zhuǎn)化效率目前不清楚
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Cyclohexasiloxane
中文名:環(huán)己硅氧烷
作用:皮膚調(diào)理劑 - 潤滑
溶劑
特性:- has a unique fluidity that makes it easily spreadable 擁有獨特流動性使得易于涂抹
- gives a silky & slippery feeling to the touch 給肌膚帶來絲滑觸感
- acts a mild water repellent by forming a protective barrier on the skin 在皮膚表面形成拒水屏障
- fill in fine lines/wrinkles, giving the face a temporary “plump” look 填充細紋和皺紋,使皮膚獲得暫時的“豐滿”效果
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Hydroxyethylpiperazine Ethane Sulfonic Acid
中文名:羥乙基哌嗪乙烷磺酸
作用:緩沖劑
特性:- maintains physiological pH 維持ph在恒定范圍
警告:
- the production of hydrogen peroxide when exposed to ambient light. It is therefore strongly advised to keep HEPES-containing solutions in darkness as much as possible (當暴露于光照時會產(chǎn)生過氧化氫肌蜻。強烈建議存儲在黑暗條件下)
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Lauroyl Lysine
中文名:月桂酰賴氨酸
作用:表面活性劑 - 質(zhì)地增強
皮膚調(diào)理劑 - 潤滑
特性:- contributing to a product’s texture 改善產(chǎn)品質(zhì)地
警告:
- subject to concentration or use limitations(有濃度和使用限制) --Cosmetic Ingredient Review Assessments
Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer
中文名:丙烯腈/甲基丙烯酸甲酯/亞乙烯基二氯共聚物
作用:成膜劑
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Polysilicone-11
中文名:聚硅氧烷-11
作用:表面活性劑 - 質(zhì)地增強
皮膚調(diào)理劑 - 潤滑
特性:- The film left behind has water-binding properties and leaves a smooth feel on skin 留下的薄膜具有水粘合特性互墓,在皮膚上留下光滑的感覺
Adenosine
中文名:腺苷
作用:皮膚調(diào)理劑
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Hydrolyzed Hyaluronic Acid
中文名:水解透明質(zhì)酸
作用:皮膚調(diào)理劑 - 保濕
特性:- a low molecular weight version of Hyaluronic Acid, and works mainly in the epidermis (outer layer of the skin)是天然大分子保濕劑透明質(zhì)酸(玻尿酸)的低分子量版本,可深入皮膚表皮內(nèi)
- acts as a sponge helping the skin to retain water, making it plump and elastic 起到海綿的作用蒋搜,幫助皮膚保持水分篡撵,使其豐滿和富有彈性
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Limonene
中文名:檸檬烯
作用:香精
特性:- has a light, fresh, and sweet citrus odor 具有淡雅,清新豆挽,甜美的柑橘氣味
警告:
- Upon storage and exposure to sunlight and air, limonene degrades to various oxidation products which act as skin and respiratory irritants and sensitizers (暴露于陽光和空氣中時育谬,會降解成各種氧化產(chǎn)物,這些產(chǎn)物對皮膚和呼吸道有刺激和致敏作用)
- Recommended restricted in cosmetics: safe only if satisfies manufacturing specifications or purity limits(建議限制在化妝品中 - 使用祷杈,濃縮或制造限制 - 香味受限制:只有滿足制造規(guī)格或純度限制才能安全)--International Fragrance Association Codes & Standards
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Isobutane
中文名:異丁烷
作用:推進劑
警告:- subject to concentration or use limitations(有濃度和使用限制) --Cosmetic Ingredient Review Assessments
only for products for use around the eyes, on the skin, or may be aerosolized(僅適用于眼睛周圍斑司,皮膚上或霧化產(chǎn)品) --Cosmetic Ingredient Review Assessments - Human irritant - strong evidence (有強力證據(jù)顯示為人體刺激物) --Cosmetic Ingredient Review Assessments
the substance is volatilized before it can come in contact with the skin, such a short period of contact makes the absence of sensitization, phototoxicity, and photosensitization studies unimportant(具有揮發(fā)性,如此短的接觸時間使得基本沒有致敏可能)
- subject to concentration or use limitations(有濃度和使用限制) --Cosmetic Ingredient Review Assessments
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Citrus Aurantium Dulcis (Orange) Peel Oil
中文名:甜橙果皮油
作用:皮膚調(diào)理劑
警告:- safe only within recommended use or concentration limits(在滿足使用和濃度限制下是安全的)--International Fragrance Association Codes & Standards
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Citrus Limon Peel Oil/Lemon Peel Oil
中文名:檸檬果皮油
作用:香精
警告:- restricts the use, because it contains some compounds that may cause skin effects when exposed to the sun(使用是有限制,因為該成分含有一些化合物宿刮,當暴露在陽光下時可能會引起皮膚效應(yīng))*--International Fragrance Association Standard
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Citral
中文名:檸檬醛
作用:香精
警告:- safe only within recommended use or concentration limits(在滿足使用和濃度限制下是安全的)--International Fragrance Association Codes & Standards
- Irritation (skin, eyes, or lungs) --European Union - Classification & Labelling
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
中文名:季戊四醇四(雙-t-丁基羥基氫化肉桂酸)酯
作用:抗結(jié)塊劑
以上基本介紹及成分列表來自于包裝盒打印信息
成分解析來自于搜索引擎排名前十的信息網(wǎng)站互站,包括: EWG' Skin Deep - Cosmetics Database、Cosmetics Info僵缺、Truth in Aging胡桃、Wikipedia
通過此次調(diào)研,不難發(fā)現(xiàn):
- 很多成分帶來的“柔潤”只是暫時的磕潮,或者說是修飾性的翠胰,如果中斷產(chǎn)品使用/洗臉,都會失去效果自脯;
- 水解透明質(zhì)酸性質(zhì)上和玻尿酸還是有一定區(qū)別之景,品牌方可能是考慮到后者在女性人群中的認知度,產(chǎn)品包裝上有意識地隱去了這部分區(qū)別膏潮;
- 暗光儲存是保持效用的重要條件锻狗;
- 抗氧化和保濕是各類護膚品的功效本質(zhì);其他都是虛的焕参,哈哈哈