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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