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CosDNA > Ingredient search > Benzoic Acid
Benzoic Acid

Cas No:65-85-0
ComedogenicIrritatingSource
23Sage Advice
23DERMAdoctor

Bulking agent; Preservative
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Last edited:2014-05-27
ditavonteese
  
2012-05-30 05:32
苯甲酸钠是用于内服液体药剂的防腐剂,有防止变质发酸、延长保质期的效果,用量过多会对人体肝脏产生危害,甚至致癌.
苯甲酸类毒性较大,许多国家已用山梨酸钾取代。
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chaiwewe
  
2012-06-11 10:15
化妝品防腐劑成分使用基準表
74年7月23日衛署藥字第539747號公告
Benzoic acid 0.2%
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swinging
  
2015-05-22 16:10
会被皮肤吸收吗?还有对人体完全无害的防腐剂吗,找的好累
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tsr.resin
  
2019-05-23 15:49
衛福部修正化粧品防腐劑成份使用及限量規定基準表
中華民國107年4月1日生效
苯甲酸容許使用量為0.2%
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kenvonsu
  
2019-05-28 16:57
苯甲酸與維他命C共存時可能因為高溫與UV光的暴露產生苯
未稀釋的苯甲酸對眼睛有刺激性
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Jewelsy-G
  
2019-10-20 13:46
Benzoic acid is a plant polyphenol and a natural aromatic acid used in a wide variety of cosmetics as a pH adjuster and preservative1. Benzyl Alcohol is metabolized to Benzoic Acid in the body.

As a preservative in cosmetic formulations, it is primarily an anti-fungal agent that prevents fungi from developing in products and formulas and changing their composition. It is less effective against bacteria.

Benzoic acid has a long history of use as an antifungal agent in topical therapeutic preparations such as Whitfield’s ointment (benzoic acid 6% and salicylic acid 3%) 2. It has been used with salicylic acid as a topical antifungal agent and in the treatment of athletes foot and ringworm2.

Paula’s choice website rated it safe. EWG.org website rated low concern but some concentration limits were restricted in Japan only.

It has been concluded that benzoic acid can be used safely at concentrations up to 5%, but that consideration should be given the nonimmunologic phenomena when using this ingredient in cosmetic formulations designed for infants and children.

Synonym(s): BENZENECARBOXYLIC ACID; BENZENEFORMIC ACID; BENZENEMETHANOIC ACID; BENZOIC ACID,; CARBOXYBENZENE; DRACYCLIC ACID; PHENYLCARBOXYLIC ACID; PHENYLFORMIC ACID; ACIDE BENZOIQUE (FRENCH) ; ACIDO BENZOICO (ITALIAN) ; BENZENECARBOXYLIC ACID
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