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Bismuth Oxychloride
Wismuthoxichlorid, CI 77163
Molecular Weight: 260.43 Cas No:7787-59-9
Pigment
2010-07-06

但是很多使用者说这个成份其实很可能导致粉刺。

i
2014-09-11

顏料,提高亮度劑

M
2015-03-23

Some people react to bismuth oxychloride due to its unique crystalline structure. What happens is that the crystals can "poke" at skin and get stuck in the pores, where the sharper "spokes" can cause irritation. This is more of a problem when bismuth oxychloride is the main ingredient in powder makeup.

我用完這個product會有少許敏感起粒粒, 本來沒什麼, 但每次一用它就是這樣, 不知是否關於這個成份? 個人覺得這個brand其實沒有宣傳般對skin溫和

m
2015-10-27

是造成粉刺痘痘的成份之一

~FROM PAULA'S CHOICE~

Rating: AVERAGE

Categories: Texture Enhancer, Absorbent
Also known as synthetic pearl, it’s the primary ingredient included in most powders that are referred to as "mineral makeup."

Some cosmetic companies claim that bismuth oxychloride is natural and better for skin than talc. The truth is that in many ways talc is a more natural, unadulterated, pure ingredient than bismuth oxychloride.

Bismuth oxychloride, which seldom occurs in nature, is manufactured by combining bismuth, a by-product of lead and copper metal refining, with chloride (a chlorine compound) and water. It's used in cosmetics because it has a distinct shimmery, pearlescent appearance and a fine white powder texture that adheres well to skin.

Bismuth oxychloride is heavier than talc. Pure bismuth is a naturally occurring, grayish-white powder. It and its derivatives are used as skin protectives, thickeners, and absorbent agents.

Bismuth oxychloride was permanently listed by the FDA as a coloring agent in 1977 and for use as a synthetic ingredient.

Some people react to bismuth oxychloride due to its unique crystalline structure. What happens is that the crystals can "poke" at skin and get stuck in the pores, where the sharper "spokes" can cause irritation. This is more of a problem when bismuth oxychloride is the main ingredient in powder makeup.

Pure concentrations of bismuth oxychloride nanoparticles appear to have a negative effect on human skin cells.

References for this information:
Food and Chemical Toxicology, June 2015, pages 52-61
http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=73.2162&SearchTerm=bismuthoxychloride
http://bismuth.atomistry.com/production.html

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