What's Wrong With This Pearlescent Shampo Formula?

Oct 13th, 2008

Rachel Chapman

Conditioning Pearlescent Shampoo

A.
Water (aqua), 35.4%
Glycerin, 12.5%
Sodium lauryl sulfate (30% active), 20.0%
Carbomer, 1.0%
Quaternium-15, 2.0%
Polyquaternium-10, 2.5%

B.
Cocamide MEA, 10.0%
Propylene glycol, 5.0%
Ethanol (95%), 7.5%
FD&C Blue#1, 1.0%
Fragrance (parfum), 1.5%

C.
Glyceryl stearate, 1.5%

D.
NaCl, 0.10%

Procedure: Heat A to 75ºC. Combine B at 30ºC. Cool batch to 25ºC and add remaining phases.

ANSWERS:
There are at least 14 errors in the above formula. Click here to view the answers.

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