The surfactants in cosmetics and skin care products.
The following is the non-ionic surfactant .
Non-ionic
surfactant
Function: emulsifier
Non-ionic surfactant is the reaction of
alcohol and fatty acid. The alcohols are Glycol ( Ethylene, EG), Propylene
Glycol(PG), Glycerine(glycerol), Sorbitol, and Polyoxyethylene (POE). It can be
applied in anionic surfactant and amphoteric surfactant as detergent. If it is
added in cationic surfactant as well, the function of the skin care and hair
products would be with cleaning and softening the skin characters.
1.
Alkanolamide
1.1 coconut fatty acid diethanolamide
1.2 lauric aciddiethanolamide, Cocamide DEA
1.3 Lauric acid monoethanolamide, cocamide MEA
2.
Amine oxide
Lauryl dimethyl amino oxide
3.
Alkyl polyglucoide
Alykyl poplyglucoside (lauryl poplyglucose, APGs)
4.
Polyoxyethylene type nonionic
surfactants
4.1 Ether type
It is applied in the detergent for laundry and kitchenware.
Laureth-4: CH3(CH2)10CH2(OCH2CH2)4OH
4.2 Ester type
PEG-4-Laurate
5.
Sucrose esters
Sucrose fatty acid ester
6.
Span and Tween series
Atlas Company develops sorbitol type Non-ionic surfactants which are
called span series. They add Polyoxyethylene (POE) to improve hydrophilic
abilities which are called Tween series. Tween 20 is bad blowing agent, but it
has fewer allergies. So they are often applied in baby care products.
Span: emulsifier, lipophilic
Tween: emulsifier, hydrophilic
|
products
|
name
|
HLB value
|
1
|
span 20
|
sorbitan monolaurate
|
8.6
|
2
|
span 40
|
sorbitan monopalmitate
|
6.7
|
3
|
span 60
|
sorbitan monostearate
|
4.7
|
4
|
span 65
|
sorbitan tristearate
|
2.1
|
5
|
span 80
|
sorbitan monooleate
|
4.3
|
6
|
Tween 20
|
POE 20 sorbitan monolaurate
|
16.7
|
7
|
Tween 40
|
POE 20 sorbitan monopalmitate
|
15.6
|
8
|
Tween 60
|
POE 20 sorbitan monostearate
|
14.9
|
9
|
Tween 65
|
POE 20 sorbitaan tristearate
|
10.5
|
10
|
Tween 80
|
POE 20 sorbitan monooleate
|
15
|
11
|
Tween 85
|
POE 20 sorbitan trioleate
|
11
|
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help to find the specific skincare product ingredients by "skin+" App
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