Exam (elaborations)
PSI Cosmetology Theory Exam Latest 2023 Graded A
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Hard Water Minerals that lessen the ability of the shampoo to lather Purified water/Deionized water Main ingredient in shampoo Surfactant has two ends the HYDROPHILIC HEAD and LIPOPHILIC TAIL Hydrophilic Head Attracted to water Lipophilic Tail Attracted to dirts and oils Acid Balanced Shampoo ...
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