Zinc Oxide
microfine Zinc Oxide, CI 77947
Formula: OZn Molecular Weight: 81.408 Cas No:1314-13-2
Bulking agent; Skin Protecting; UV absorber
[1] Wikipedia, the free encyclopedia, http://en.wikipedia.org. (但目前本項目部份內容仍有所爭議).
Chemical formula
b
2010-02-28
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日文:酸化Zn

k
2011-02-10
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氧化鋅應該是“紫外線屏蔽劑”~而不是紫外線吸收劑吧!
因為紫外線吸收劑是指化學性防曬

2011-07-06
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最多用量是多少及
粒子越小越不安全有沒有說小過什麼SIZE就不安全

c
2012-06-10
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想請問一下z-cote的粒子細小程度有去到microfine zinc oxide或nano zinc oxide那麼小嗎?會不會被皮膚吸收?
thanks!

2012-07-15
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安全,因為滲不進皮膚,即便滲入也不發生刺激或化學反應 (取自張麗卿 博客分享)

j
2012-11-02
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我一直在尋找完美的防曬 能夠完整防護紫外線A 質感要自然 好清洗的
最近買了幾款純物理防曬 都是高分比的氧化鋅 照理來說 防曬部分是可以很放心
而且現在都作的很細緻 擦起來很舒服 一點都不會死白
但是 可能是因為氧化鋅本身收斂的特質 雖然剛擦的時候很滋潤
但是 過了一會兒 整個臉像是起雞皮疙瘩一般 整個臉都很乾 還會一粒一粒的 整片浮起來...
害我現在只能去尋找化學性防曬 我本身是混合性偏乾性肌膚
是否要油性皮膚才合用? 提供給大家作參考

2013-04-28
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保養品日文正確表示名稱是"酸化亜鉛","酸化Zn"是簡略的表示名稱

A
2013-07-10
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我也開始使用物理性防曬,也覺得用後感覺頗乾,之後就嘗試用一比一份量混合比較滋潤的乳霜再使用,感覺比較好一點,但就不知道會否降低了防曬效果

h
2013-08-23
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有一款注明(non-nano)的 Zinc Oxide 是不是就比较安全呢?

y
2014-01-14
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上限20%

2015-02-13
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防晒剂中的纳米氧化锌,接触人体最主要的途径是皮肤。人体皮肤角质层细胞间隙约为100nm,在某些情况下可变宽,而且毛囊使得皮肤表面积增加,纳米氧化锌在毛囊内的堆积可能成为其进入人体的潜在途径,因此理论上防晒剂中的纳米氧化锌有可能穿透角质层的屏障进入深层活体组织。关于纳米氧化锌的经皮吸收的研究很多,Karsten Schlling等回顾了近10余年间的研究成果,这些研究采用在体试验或离体试验,对纳米氧化锌在无毛小鼠、猪或人体皮肤等各种皮肤模型中的经皮吸收情况进行了探索,并未发现防晒剂中的纳米氧化锌透过皮肤角质层的屏障进入活性细胞中的证据,并认为主要原因是防晒剂中毒纳米氧化锌一般都是以聚合物的形式存在,而非原始的纳米粒子。
然而,这些基于正常皮肤的研究,并不能反应皮肤角质层受损时纳米氧化锌经皮吸收的情况,仍然不能完全打消消费者对其安全性的担忧。因为皮肤晒伤后反复涂抹防晒剂的情况时有发生,而晒伤的皮肤角质层功能受损,渗透能力大大增强,防晒剂的经皮吸收可能增加。皮肤渗透性较高的情况还包括儿童的皮肤、老人的皮肤或身体某些较薄的皮肤等,目前关于纳米氧化锌在受损皮肤或渗透性较高的皮肤的经皮吸收情况鲜见报道,应该是下一步研究的方向。

2015-02-13
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所以说正常皮肤一般不会吸收纳米氧化锌,但角质层受损的皮肤可能吸收。。

m
2015-06-22
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回jjlin103, 我是混合性皮膚,t字位油但兩頰是乾性皮
我都有用物理性防曬但我不會覺得乾
我想最主要是護膚品的關係,如果做好保濕的功夫塗防曬時就不會出現乾的問題

我用的物理性防曬是innisfree的eco safety no sebum sun milk

m
2016-09-23
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氧化鋅
安全的物理性防曬成分

2018-04-30
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Zinc oxide is an active sunscreen ingredient. This mineral acts as a broad-spectrum UV filter by forming a barrier on the skin. Zinc oxide particles layer on top of the skin surface and help protect the skin by reflecting and scattering both UVA and UVB sunrays away.

Zinc oxide is often recognized for its low potential for irritation and skin sensitization.

Zinc oxide is a fine white powder that is insoluble in water, contributing to its water-resistant properties.

O
2018-08-23
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not safe for Acne prone oily sensitive skin

a
2019-04-17
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@Omni God. Seriously the most ridiculous comment. Zinc oxide is highly recommended for sensitive skin and oily skin.

R
2019-04-25
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日文: 酸化亜鉛

R
2019-04-25
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為FDA含藥成分(取自化妝品禁限用成分管理規定):
防曬、2.0~20.0%(作為收斂劑之用途,限量10%以下)
其他規定:用作化粧品本身之保護劑,而非作為防曬劑且未標示其效能者,得以一般化粧品管理。

s
2020-04-27
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主要為附著在皮膚上,遮蔽並反射紫外線。
雖然物理防曬並不像化學防曬會隨著光照射減低效果,但粉體仍會因,風、接觸、流汗、時間等逐漸脫落,使防曬效果降低,為使粉體較不易脫落,通常產品較為黏膩
即便無運動,仍建議1小時補擦一次

2021-04-14
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Fast facts
Approved in: United States, Australia, Europe, Japan
Banned in: None
Best for: Sun damage prevention
Coral safe? No
Caution: Certain formulations may leave a white cast for olive and dark skin tones

Zinc oxide is the second GRASE sunscreen ingredient, allowed in concentrations up to 25 percent.

Studies show it’s safe, with no evidenceTrusted Source of skin penetration, even after repeated use. In Europe, the ingredient is labeled with a warning because of its toxicity to aquatic life. The ingredient doesn’t cause harm unless it’s swallowed or inhaled.

Compared to avobenzone and titanium oxide, it’s cited as a photostable, effective, and safe for sensitive skin. On the other hand, research also says it’s not as effective as chemical sunscreens, and isn’t as effective in protecting against sunburn as it is for sun damage.

https://www.healthline.com/health/beauty-skin-care/best-sunscreen-ingredients#zinc-oxide

a
2023-04-23
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Mineral sunscreens are made with titanium dioxide and zinc oxide, usually in the form of nanoparticles. The FDA proposed that both titanium dioxide and zinc oxide be classified as safe and effective. Evidence suggests that few if any zinc or titanium particles penetrate the skin to reach living tissues (Gulson, 2012, Sadrieh 2010).

Titanium dioxide and zinc oxide

Titanium dioxide is classified as a possible human carcinogen by the International Agency for Research on Cancer, because of the potential of exposure through inhalation. For this reason, powdered or spray formulations containing titanium dioxide are of concern. Zinc oxide also carries inhalation concerns when used in spray and powder products

In general, mineral sunscreens tend to rate better than chemical sunscreens in the EWG sunscreen database. However, it is important that manufacturers use forms of minerals coated with inert chemicals to reduce photoactivity. To minimize the risks to sunscreen users and maximize these products’ sun protection, EWG supports stronger guidelines and restrictions on the types of used zinc and titanium in sunscreens. Our detailed analysis of nanoparticles in sunscreens is available here.

https://www.ewg.org/sunscreen/report/the-trouble-with-sunscreen-chemicals/

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