PSI Cosmetology Theory Exam Questions with 100% Correct Answers

PSI Cosmetology Theory Exam Questions with 100% Correct Answers Soft Water/ Rain water - Answer ️️ -Best for shampooing and allows shampoo to lather freely Hard Water - Answer ️️ -Minerals that lessen the ability of the shampoo to lather Purified water/Deionized water - Answer ️️ -Main ingredient in shampoo Surfactant - Answer ️️ -has two ends the HYDROPHILIC HEAD and LIPOPHILIC TAIL Hydrophilic Head - Answer ️️ -Attracted to water Lipophilic Tail - Answer ️️ -Attracted to dirts and oils Acid Balanced Shampoo - Answer ️️ -pH of 4.5-5.5 Jheri Redding - Answer ️️ -first to introduce pH balanced shampoo in the 1960s Clarifying Shampoo - Answer ️️ -acidic base to cut through buildup on the hair strand Humectants - Answer ️️ -Most conditioners carry this. Promote retention of moisture Instant conditioners - Answer ️️ -remain on the hair 1-5 minutes Protein Conditoners - Answer ️️ -brown liquids and penetrate into the cortex to temporarily improve porosity and increase elasticity Infraed Lamps - Answer ️️ -may be used with hair treatments and scalp tonics for 5 minutes High Frequency Unit - Answer ️️ -used to normalize oily scalp conditioners! Also never should be used with tonics that contain alcohol Base Control - Answer ️️ -position of the rod in relation to its base section croquignole perm wrap - Answer ️️ -wrapped perpendicular to the scalp starting with the ends Spiral Perm Wrap - Answer ️️ -Wound from the ends to scalp and rods hang vertical Concave Rods - Answer ️️ -most common and have a smaller center circumference Straight Rods - Answer ️️ -uniform circumference Alkaline Permanent - Answer ️️ -softens and swell the hair which raises the cuticle. Developed in 1941 Ammonium Thioglycolate (ATG) - Answer ️️ -main ingredient or reducing agent in alkaline perms Alkaline Waves ( COLD WAVES) - Answer ️️ -process at room temp Acid Perms - Answer ️️ -Main ingredient is glyceryl monothioglycolate (GMTG) Exothermic perms - Answer ️️ -reaction that causes heat. contains hydrogen peroxide Endothermic Perms - Answer ️️ -activated by outside heat source. True Acid perms are endothermic Disulfide Bonds - Answer ️️ -if too many are broken the hair will become over processed and have a weak curl What is the main ingredient in a neutralizer - Answer ️️ -Hydrogen Peroxide Do not shampoo hair - Answer ️️ -48 hours after a perm Cuticle - Answer ️️ -outer most layer of the hair Cortex - Answer ️️ -middle layer of the hair where all chemical processes take place Melanin - Answer ️️ -Natural pigment located in the cortex Peptide Bonds - Answer ️️ -called end bonds link together to form polypeptide chains. Should not be broken. What are the three side bonds? - Answer ️️ -Disulfide, Salt,Hydrogen, Side/Cross Disulfide Bonds - Answer ️️ -strognest. Must be broken when perming or relaxing the hair Salt bonds - Answer ️️ -Weak physical side bonds that are easily broken by changes in pH Hydrogen Bonds - Answer ️️ -broken by water or heat EX: Wet Set Hair Texture - Answer ️️ -Diameter of a single strand Hair Density - Answer ️️ -number of strands of hair are on the head Hair Porosity - Answer ️️ -Absorb mositure Hair Elasticity - Answer ️️ -strength of the side bonds. Wet hair stretches 50% of its original length then returns to its former length without breaking