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CosDNA > Ingredient search > Citric Acid
Citric Acid

Molecular Weight: 192.124
Cas No:77-92-9; 5949-29-1

Chelator; Buffering agent; pH Adjuster

果酸的一種, 主要自柑橘類水果取得(特別是檸檬), 為部份食品或飲料的酸味來源, 並可作為天然Preservative. 扮演著人體中重要的檸檬酸循環(Citric Acid Cycle) 不可或缺的物質[1].

由於一般而言, 酸度通常條為中~弱酸性, 若非強調含果酸配方, 只能算是酸鹼調節劑, 並無真正果酸功效[2].
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Last edited:2012-08-20
2012-05-29 18:40
Citric acid is widely used as a pH adjusting agent in creams and gels of all kinds.
In this role it is classified in most jurisdictions as a processing aid and so does not need to be listed on ingredient lists.
Citric acid is an alpha hydroxy acid and used as an active ingredient in chemical peels.
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2013-04-29 08:29
Citric Acid is not devide from Citric fruits like lemon.... It is most from corn.
2015-03-24 14:07
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2015-11-05 18:48
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2017-07-17 10:54
I have very sun sensitive skin and sunscreens with citric acid make my skin more photosensitive. I avoid it in most of my skincare products.
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