MI Cosmetology common mistakes
MI Cosmetology · Understand the traps and how to avoid them.
Choosing “sterilize” for items that Michigan rules only require to be cleaned and disinfected, or treating single-use items as reusable.
Candidates memorize supply lists instead of classifying items by how they contact the client, so they default to the strongest-sounding term.
What to do instead
Sort implements into three columns-single-use, clean-and-disinfect, and sterilize-using the contact category and Michigan rule, then drill until the category, not the item name, drives the answer.
Labeling a muscle of mastication (e.g., masseter) as a muscle of facial expression, or reversing origin and insertion.
Anatomy is studied as isolated flash cards rather than by function and attachment, so similarly named structures blur together.
What to do instead
Group muscles by function (mastication, expression, neck) and draw each with origin and insertion marked; answer questions by asking what the muscle does before naming it.
Stating that a lower pH is more alkaline, or classifying relaxers as acidic and hair color as alkaline without checking the product type.
The pH scale runs opposite to everyday intuition, and candidates memorize product labels without anchoring them to the 0–14 ladder.
What to do instead
Draw a pH ladder from 0 to 14 and place each product family on it, then practice questions by locating the product on the ladder before choosing an answer.
Selecting 40-volume developer for a deposit-only color service, or skipping the patch test or strand test because the question emphasizes the finished shade.
Candidates memorize developer numbers as facts rather than as rules tied to lift versus deposit, and they focus on the color result instead of the safety sequence.
What to do instead
Build a decision tree: desired lift or deposit → developer volume → test required → processing time, and rehearse it aloud until the safety step is chosen before the shade.
Confusing elevation with graduation, or misidentifying the result of a 90-degree cutting angle.
Sectioning and elevation are spatial skills studied from text, so the terms stay abstract and interchangeable.
What to do instead
Sketch head diagrams with the head shape, section, and elevation line drawn for each cut, and describe the resulting shape in words before checking the answer.
Omitting base cream, applying relaxer over an abrasion, or skipping the neutralization step when answering a relaxer or curl question.
Candidates study the chemical outcome and processing time but treat the safety sequence as background information.
What to do instead
Memorize the relaxer service as an ordered checklist-consultation and scalp check, base, application, smoothing, rinse, neutralize, test-and reject any answer that skips a step.
Classifying dehydrated skin as a skin type rather than a condition, or missing a waxing or exfoliation contraindication.
Skin type and skin condition overlap in everyday language, and contraindications are studied as a list rather than as reasons to refuse service.
What to do instead
Separate the two: type is genetic and stable (dry, oily, combination, normal), condition is temporary (dehydrated, sensitive, acne); for each service, memorize the refusal triggers before the technique.
Treating onychomycosis or a suspicious nail lesion as a cosmetic problem to be covered or trimmed, or using nippers on living tissue.
Candidates focus on the manicure result and do not connect nail disorders to scope-of-practice limits and referral.
What to do instead
Learn the referral triggers and prohibited actions as a fixed list-discolored, detached, inflamed, or painful nails are referred, not serviced-and answer by asking whether the action is within scope.
Guessing Michigan-specific numbers-renewal cycle, continuing education hours, salon license posting, sanitation frequency-from another state’s rules or from general memory.
Candidates study a national review course and assume licensing rules are uniform, so state-specific figures are never verified.
What to do instead
Build a one-page Michigan numbers sheet sourced only from the official board rules and statutes, and review it until each figure is tied to its requirement rather than to a number alone.
Applying generic business knowledge to questions about independent contractors, employee status, client record retention, or informed consent instead of the Michigan rule.
Candidates transfer general small-business assumptions to a regulated profession where the board rule controls.
What to do instead
For each business topic, write the legal definition and the Michigan requirement side by side, and choose the answer that matches the regulated definition rather than the common business usage.