Cosmetology Final Exam Question and Answers [100% Correct] 2024/2025 Latest Release

Cosmetology Final Exam Question and Answers [100% Correct] 2024/2025 Latest Release What is the purpose of applying a toner after lightening hair? **Ans** To neutralize unwanted brassy or yellow tones and achieve the desired hair color. Why is it essential to perform a patch test before applying hair dye? **Ans** To check for allergic reactions to the chemicals in the hair dye. What is the role of melanin in the hair? **Ans** Melanin gives hair its natural color. How should tools and implements be stored after disinfection? **Ans** In a clean, covered, and dry container to prevent contamination. What is the anagen phase of hair growth? **Ans** The active growth phase when the hair is growing from the follicle. What is the correct procedure for applying a virgin relaxer? **Ans** Apply the relaxer to the mid-shaft first, then the ends, and finally the roots. Why is draping important during chemical services? **Ans** To protect the client’s skin and clothing from chemicals and prevent burns or stains. What is a contraindication for facial treatments? **Ans** Skin conditions like open wounds, infections, or severe acne. How often should hairbrushes and combs be disinfected in a salon setting? **Ans** After every use to prevent the spread of bacteria and fungi. What type of haircut is referred to as a 90-degree cut? **Ans** A uniform layered haircut where the hair is cut at the same angle all over. What are the signs of over-processed hair after a chemical service? **Ans** Hair becomes weak, brittle, and may break easily. Why is it important to balance the pH of the skin after a facial? **Ans** To restore the natural acid mantle and protect the skin from bacteria and environmental damage. What is the purpose of a callus softener during a pedicure? **Ans** To soften and break down the tough, thick skin on the feet for easier removal. What is the function of a humectant in skin and hair care products? **Ans** To retain moisture and keep the skin and hair hydrated. What is the proper way to apply nail polish during a manicure? **Ans** Start with a base coat, apply two coats of color, and finish with a top coat for protection. What is the technical term for split ends? **Ans** Trichoptilosis. How often should cosmetologists change their gloves during a service? **Ans** After each service or when they become soiled or damaged. What is the benefit of using an exfoliant during a facial? **Ans** To remove dead skin cells, promote cell turnover, and improve skin texture. Why is scalp analysis important before performing any chemical treatment? **Ans** To identify any scalp conditions that could negatively interact with the chemicals. What does a neutralizer do in the perm process? **Ans** It re-bonds the hair's structure, locking the curl pattern in place. When working with hair that has been chemically relaxed, you should avoid using: **Ans**Hot irons Incorrect placement of the rubber band of perm rods will cause band marks or: **Ans**Breakage When performing test curls, the rod should be unwound approximately: **Ans**1 1/2 turns When checking for test curl development, the teest curl should relfect: **Ans**firm S formation The term used to describe removing excess water before the application of a neutralizer is: **Ans**Rinsing Performing texture services involves poerful chemicals that must be handled with: **Ans**Caution To avoid excessive stretching of the hair when combing out tangles, use a: **Ans**Wide-toothed comb To avoid scalp irritation, prior to the application of a hydroxide relaxer never: **Ans**Shampoo the hair Curl re-formation does not straighten the hair, it simply makes the existing curl: **Ans**larger and looser Conditioners with an acidic pH that condition and normalize hair prior to shampooing are: **Ans**Normalizing lotions To avoid coverprocessing during a retouch relaxer application, wait until the last few minutes of processing to apply relaxer to the area: **Ans**closest to the scalp The strength of relaxers is determined by the concentration of : **Ans**hydroxide Cream used to protect the skin and scalp during a hair relaxing process is: **Ans**base cream Ammonium sulfite and ammonium bisulfite are marketed as: **Ans**mild alternative relaxers lithium hydroxide relaxers and potassium hydroxide relaxers are advertised asn sold as: **Ans**no-lye relaxers A relaxer with two components mixed immediately prior to use is: **Ans**guanidine hydroxide relaxer The main reducing agent in alkaline permanents is: **Ans**Ammonium thioglycolate The primary low pH reducing agent in acid waves is : **Ans**glyceryl monothioglycolate An exothermic chemical reaction produces: **Ans**heat The basic components of acid waves are permanent wave solution and: **Ans**activator and neutralizer An endothermic wave must be activated using a **Ans**outside heat source The basic components of acid waves are permanent wave solution and: **Ans**Activator and neutralizer An endothermic wave must be activated using a: **Ans**outside heat source In permanent waving, the processing should be determined by the: **Ans**strength of the solution Hair that is too weak to hold a curl or may be completely: **Ans**over-processed The process of stopping the action of a permanent wave is: **Ans**Neutralization Permanent wave solution should be rinsed from the hair for a minimum: **Ans**5 minutes A 90-degree perm wrap that minimizes stress and tension on the hair is: **Ans**half off base The process of rearranging extremely curly hair into a straighter or smoother form is: **Ans**chemical hair relaxing In extremely curly hair, the thinnest and weakest sections of the hair strand are located at the: **Ans**twists Thio chemical relaxers usually have a pH value above: **Ans**10 The active ingredient in all hydroxide relaxers is the hydroxide: **Ans**ion All hydroxide relaxers can swell the hair up to: **Ans**twice its normal diameter Hydroxide relaxers remove one atom of sulfur from a disulfide bond converting it into a: **Ans**lanthionine bond Disulfide bonds broken by hydroxide relaxers can never be : **Ans**re-formed Hydroxide ions left in the hair after a relaxer can be neutralized using a : **Ans**acid-balanced shampoo Relaxers containing one component used without any additional mixing are: **Ans**metal hydroxide relaxers Sodium hydroxide relaxers (NaOH) are commonly called: **Ans**lye relaxers