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请教这个cream成分

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06-01-27 20:02操作
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那个葡萄柚具有很轻微的光敏性, 一定浓度一下即使白天用也是没问题的.


看这个成份表, grape fruit extract含量很低吧, 排在很靠后的位置, 我觉得白天用问题不大.

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06-01-27 20:17操作
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以下是引用一朵蘑菇在2006-1-27 16:20:00的发言:

不会把,那么可怕啊[em03][em03][em03][em03]


还有啥也是光敏的啊??据说Vc也是?我从来没注意过,大白天用Vc司空见惯了

[em01][em01][em01]

VC跟那几种光敏性精油不一样, 不过涂了VC产品以后也要做好防晒, VC可不能代替防晒产品呀.

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06-01-27 20:20操作
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以下是引用tasteofair在2006-1-27 20:17:00的发言:


不是MM要等的牛[em08] 就我知道的说一说


grapefruit extract 不是 grapefruit essential oil,grapefruit extract 这里是用作防腐剂的,和它前面的phenoxyethanol, methyl/propylparaben 都是防腐剂,一般防腐剂都写在成分表最后,因为含量低。


avacado是一种基地油,质地粘稠,保湿性很好,适合干性皮肤。


shea butter 也适合干性皮肤


其他也什么特别的咚咚了,aloe vera 芦荟;lavandula angustifolia 熏衣草;jojoba oil 荷荷巴油;jasminum officinale 茉莉;L-ascorbic acid 左旋C;tocopheryl acetate VE 乙酸酯。


好了,还是等牛们来吧[em08][em08]


你挺牛的了, 那个grape fruit extract我都不知道在这里是当防腐剂用呢. 只觉得它的浓度和含量肯定很低.

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06-01-27 20:47操作
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以下是引用一朵蘑菇在2006-1-27 20:42:00的发言:


我从来不用防晒得。最近才用点LM的TM,带spf的[em01][em01][em01]


FT, 不用好防晒产品, 你抹啥抗衰老的霜, 油的都白抹了.

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06-01-27 20:49操作
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以下是引用tasteofair在2006-1-27 20:30:00的发言:

网上偶尔看到的,[em08][em08] 贴个我看过的网站:http://www.soapnaturally.org/naturalskincare/preservatives.html


MRH上有卖这个grape fruit extract,也说起防腐作用。


Preservatives


Preservatives are substances that kill bacteria and fungi (or at the very minimum make it very difficult for "living things" to survive), and have no effect on the shelf life of the oils. Bacteria, fungi, yeast and other potentially dangerous microorganisms typically avoid waterless compounds (such as balms, salves, pomades and oil-only blends) and also substances with a relatively high pH (such as soap), but thrive in humid environments. For this reason, soaps and oil-based skin care applications do not need preservatives - but unlike these, creams, lotions and any other compound where water is present require adding a preservative if the shelf life and integrity of the product need to be extended further than 2 or 3 weeks.

It is important to understand that the efficacy of preservatives relies, by definition, on their ability to kill live cells; in other words, their toxicity is an unavoidable component of their reason of being. A number of natural extracts, plants and essential oils contain substances that have the power to effectively kill bacteria, yeast and fungi; however, in many cases these substances are or can be toxic for humans, too. A typical example are citrus or grapefruit seed extracts: although these have natural antimicrobial properties, some of their constituents are thought to be responsible for life-threatening hormonal imbalances. Also, citrus seed extracts are not approved for cosmetic use in Europe and in Japan, and are therefore not an option in those countries.

In the last few months, a new type of natural preservative has appeared on the market. Similar in look, feel and scent to an essential oil blend, and made by combining active fractions of essential oils, this new preservative system seems to have the potential to address the needs of those skin care manufacturers who want their products to be completely natural - yet, being such a new product, some time might be required before its efficacy and possible contraindications are proven once for all.

Among the synthetic preservatives available for handmade skin care products, paraben-based systems seem to be particularly controversial. A large number of articles, books and so-called "expert" opinions point to paraben-based preservative systems as being responsible for the "skin unfriendliness" of many industrial products. However, in-depth medical and scientifical researches show that paraben-based preservatives are by far less dangerous, both for the skin, and for the environment, than most other types of preservatives, such as for instance those that fall into the "formaldehyde donors" category.





嗯, 好象牛尔也挺喜欢用这个做防腐剂的,


刚才研究了一下, 很多婴儿用品里都用这个做防腐剂, 过敏性比较小.

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06-01-27 20:52操作
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以下是引用一朵蘑菇在2006-1-27 20:49:00的发言:

我不懂。不喜欢防晒那种油腻腻的感觉。


我只做保湿。

[em01]


紫外线才是人皮肤长皱纹的最大杀手.


讲个搞笑的, 为啥小龙女看着那么年轻啊, 让杨过都喜欢上她这个"姑姑". 就是因为她长年在古墓呆的, 太阳射不着.

[em06][em08][em35]
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