80.Restricted ingredients in cosmetic and skin care products

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Restricted ingredients in cosmetic and skin care products by regulation. Ingredient Potential toxicity Hexachlorophene Neurotoxic effects Ability to penetrate human skin Mercury compounds Accumulation in the body Skin irritation Allergic reactions Neurotoxicity Bithionol Photocontact sensitization Halogenated salicylanilides Photocontact sensitization Chlorofluorocarbon propellants Hazardous to human health Chloroform Plausible carcinogenicity Vinyl chloride Plausible carcinogenicity Zirconium-containing complexes Lung toxicity Methylene chloride Plausible carcinogenicity help to find the specific skincare product ingredients by "skin+" App.
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40.Ionic and Non-ionic surfactant

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Ionic and Non-ionic surfactant
Skin care products and cosmetics need to add surfacant as well. 
There are many types surfactants. They have different characters. 
The surfactant could be divided into two groups
1.      Ionic surfactant
The ionization has three types
Anionic surfactant
RCOO-Na+
RC6H4SO3-Na+
a.  Cationic surfactant
RNH3+Cl-
RN(CH3)3+Cl-
b.  Amphoteric surfactant
R+NH2CH2COO-
RN+(CH3)2CH2CH2SO3-
The Amphoteric surfactant is milder and fewer toxicities than anionic surfactant. It most is made of shampoo and baby products.
2.      Non-ionic surfactant
water soluble functional group won’t ionize. It would exist as -OH,- O-,- CONH-, -COOR types. It also could combine with different HLB values of non-ionic surfactants.
RCOOCH2CHOHCH2OH

RC6H4(OC2H4)nOH

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