MS Master Barber Exam cheat sheet

Sanitizing reduces pathogens on surfaces to a safe public-health level; disinfection destroys most pathogens on hard nonporous implements; sterilization destroys all microbial life including spores.

EPA-registered hospital-strength disinfectant is the standard for implements that contact skin or blood; follow the label's contact time exactly (commonly 10 minutes) and never shorten it.

Blood and body-fluid spills: wear gloves, absorb with disposable towel, clean with soap and water, then disinfect with an EPA-registered tuberculocidal product; place all waste in a double-lined closed container.

Single-use porous items (neck strips, cotton, wooden sticks, styptic pencils, razor blades) are discarded after one client; they are never disinfected and reused.

Implements must be cleaned (soap and water, remove debris) before disinfection; organic matter inactivates most disinfectants.

Standard Precautions treat all blood, body fluids, secretions, and non-intact skin as infectious regardless of a client's appearance or stated health status.

Hand washing with soap and warm running water for at least 20 seconds is required before and after each client and after glove removal; hand sanitizer is not a substitute when hands are visibly soiled.

State board rules typically require wet sanitizers to be covered, labeled, and changed per manufacturer's directions; implements must be fully immersed.

Hepatitis B, hepatitis C, HIV, and fungal infections (tinea) are the key bloodborne and contact-transmitted risks in barbering; the hepatitis B vaccine is recommended for barbers.

Scalp analysis precedes every service: identify dry, oily, or normal scalp, presence of lesions, redness, flakes, or parasites; refer medical conditions to a physician rather than treating them.

Contraindications to scalp massage and most chemical or heat services include open sores, abrasions, recent chemical burns, and active fungal or bacterial infection.

Shampoo selection: clarifying shampoo removes product buildup; moisturizing or sulfate-free formulas suit dry or chemically treated hair; medicated shampoos (ketoconazole, selenium sulfide, zinc pyrithione) target dandruff and seborrheic conditions.

Water temperature for shampooing is warm (roughly 100-105°F / 38-40°C); hot water strips color and oils and can aggravate scalp irritation.

Scalp massage uses light, rhythmic, upward movements from the hairline toward the crown; it increases blood circulation and is performed only when the scalp is healthy.

Conditioner is applied mid-shaft to ends, not the scalp, unless the product is a scalp-specific treatment; rinse thoroughly to avoid buildup and flatness.

Protein (keratin) treatments rebuild temporarily and are followed by moisture; moisture (humectant) treatments restore elasticity. Overuse of protein causes brittleness.

Hair analysis terms: porosity (ability to absorb moisture), elasticity (stretch and return), and density (number of hairs per square inch) determine treatment and product choice.

Normal hair loss is about 50-100 hairs per day; sudden diffuse shedding warrants referral, not a chemical service.

Reference points: parietal ridge, occipital bone, apex, crown, nape, and four corners guide sectioning; the apex is the highest point of the head and the four corners mark the widest points at the front hairline.

Elevation (projection) of 0° builds a solid form; 45° builds a graduated form; 90° builds a uniform layer; 180° builds a long-layered form.

Guide types: stationary guide (all hair cut to one length), traveling guide (each section becomes the guide for the next), and previously cut hair as a guide.

Cross-checking cuts hair from the opposite direction of the original section to verify balance and evenness.

Clipper guards number by eighths of an inch: #1 = 1/8 in, #2 = 1/4 in, #3 = 3/8 in, #4 = 1/2 in; #0 or no guard is a bald fade.

Fade structure: the guide line (first bald line), then blend upward through graduated zones; keep the blade edge flat to the skin and use the corner of the blade only for detail work.

Clipper blades must be oiled regularly, cleaned of hair after every client, and disinfected; dull or nicked blades pull hair and cause irritation.

Wet cutting gives more control and less tension on curly or coarse hair; dry cutting reveals the true shape and is standard for fades and texture work.

Texturizing shears and razors remove bulk and weight but should not be used on the perimeter of fine, fragile, or over-processed hair.

Shaving lather softens the cuticle and holds moisture; apply warm lather and allow at least 30 seconds of contact before the first stroke.

Shave in the direction of hair growth (with the grain) for the closest, least irritating result; a second pass across the grain is acceptable when skin tolerates it.

Hold a straight razor at roughly a 30° angle to the skin; use short strokes with the free hand stretching the skin taut.

Never shave over moles, raised lesions, inflamed acne, or ingrown hairs; refer clients with pseudofolliculitis barbae to a physician and offer trimming instead.

A styptic powder or alum block stops minor nicks; single-use styptic application is required for blood contact.

Beard design: establish a neckline about one to two finger widths above the Adam's apple, and a cheek line determined by natural hair growth; square, round, or natural shapes are chosen to balance the face.

Beard trimming works from longest to shortest; outline first with a trimmer or razor, then reduce bulk with guards and finish with scissors over comb.

Hot towels open pores and soften hair before shaving; a cool towel after shaving closes pores and reduces redness.

After-shave products should be alcohol-free for sensitive skin; witch hazel or aloe-based toners soothe without stinging.

The hair color wheel: primary colors are red, yellow, and blue; secondary colors are orange (red + yellow), green (blue + yellow), and violet (red + blue). Complementary colors neutralize each other.

Level system runs 1 (black) to 10 (lightest blonde); tone describes warm, neutral, or cool. A formula is written as level + tone, e.g., 6N or 7.3.

Developer (hydrogen peroxide) volumes and lift: 10 vol (3%) deposits only, 20 vol (6%) lifts 1-2 levels, 30 vol (9%) lifts 2-3 levels, 40 vol (12%) lifts 3-4 levels; higher volume increases scalp irritation.

Permanent color requires a patch test per manufacturer (typically 24-48 hours before) and a strand test to predict processing time and result.

Lightening (bleach) mixed with developer lifts natural pigment through the warm stages: red, red-orange, orange, yellow-orange, yellow, pale yellow.

Underlying pigment is what remains after lightening; it must be identified to choose toner and to predict warmth.

Aniline derivative tints (oxidative dyes) are the most common cause of allergic contact dermatitis in hair color; paraphenylenediamine (PPD) sensitivity is the key risk.

Color does not lift color: a tint cannot lighten previously tinted hair; lightening must be done with bleach or a high-lift tint with adequate developer.

Metallic salts from some progressive dyes or medications can cause unpredictable chemical reactions with bleach; perform a strand test and refer when in doubt.

Permanent wave chemistry: thioglycolic acid (acid wave, pH ~7) or ammonium thioglycolate (alkaline wave, pH ~9.5) breaks disulfide bonds; the neutralizer (hydrogen peroxide or sodium bromate) rebuilds them in the new shape.

The perm process: pre-wrap test, wrap, apply solution, process without heat unless the product specifies, rinse thoroughly, blot, apply neutralizer, process, rinse, and remove rods.

Rod size and shape: smaller rods create tighter curls; the rod diameter relative to the hair's natural curl determines the wave result. Base direction and wrapping technique control root lift.

Relaxers: sodium hydroxide (lye, pH ~13) and lithium hydroxide are strong; guanidine hydroxide (no-lye, mixed at use) and ammonium thioglycolate (thio) are alternatives. Never use a lye relaxer on hair previously relaxed with a no-lye or thio product without a test.

Relaxer application: protect scalp with base, apply to new growth only during retouch, time precisely, rinse thoroughly, and use a neutralizing shampoo to restore pH.

Contraindications: hair with a fresh perm or relaxer (wait per manufacturer), hair with metallic salts, hair in a compromised or over-processed state, and clients with scalp abrasions or infections.

Over-processing signs: excessive breakage, mushiness, loss of elasticity, and scalp burns; stop the service and treat the hair as fragile.

Hydrogen peroxide neutralizer must be applied to every rod and left for the full specified time; incomplete neutralization leaves the hair weak and the curl unstable.

Patch and strand tests are required before chemical texture services; document results in the client record.

Hair structure: the hair shaft has three layers - cuticle (outer, protective), cortex (middle, contains pigment and gives strength), and medulla (innermost, may be absent in fine hair).

The hair follicle, bulb, papilla, and sebaceous gland make up the pilosebaceous unit; the papilla supplies blood and nutrients for growth.

Growth cycles: anagen (growth, 2-7 years), catagen (transition, 2-3 weeks), and telogen (rest, about 3 months); shedding follows telogen.

Skin layers: epidermis (outer, avascular), dermis (middle, contains blood vessels, nerves, and glands), and subcutaneous (fat, insulation).

Hair and skin disorders commonly seen in barbering: tinea capitis (fungal, contagious, refer), tinea barbae (fungal, beard area), folliculitis (inflammation of follicles), pseudofolliculitis barbae (razor bumps), seborrheic dermatitis, and alopecia areata (autoimmune, non-contagious).

Contagious conditions requiring refusal of service and referral: impetigo, tinea, lice (pediculosis), scabies, and active herpes simplex lesions.

The arrector pili muscle contracts to cause goose bumps; sebum from sebaceous glands lubricates hair and skin.

Nerve and blood supply: the face's blood vessels include the external carotid branches; the facial nerve (cranial nerve VII) controls facial expression and is a key landmark.

Androgenic alopecia (male pattern baldness) is genetic and hormone-related; it is not contagious and does not contraindicate barbering services.

Shears: hold with the thumb in the finger ring and the little finger in the finger rest; cut with the tips for detail and the base for bulk. Never cut with dull or nicked shears.

Straight razor: the blade, tang, shank, and scales. The blade must be stropped before use; disposable-blade razors eliminate honing and stropping and are preferred for sanitation.

Clippers and trimmers require regular blade oiling, blade alignment, and cleaning of hair from the blade teeth; use a blade guard when not in use.

Electrical safety: inspect cords for fraying, keep water away from outlets, use ground-fault protection where required, and unplug equipment before cleaning.

Implements are classified as porous (wood, cloth, foam), semi-porous (some plastics), and nonporous (metal, glass); only nonporous items can be reliably disinfected.

Sharps (razor blades, scissors) are disposed of in a rigid, puncture-resistant sharps container; never in general trash.

Tool storage: clean and disinfected implements are stored separately from soiled ones; drawers and cabinets must be clean and dry.

Blade disposal and razor handling: never leave an open blade on a station; recap or dispose immediately after use.

The Mississippi State Board of Barber Examiners regulates barbering in Mississippi; the board adopts rules for licensure, sanitation, and shop operation.

Licensure requires completion of an approved barber program (commonly 1,500 hours) and passing the written and practical examinations; verify current hour requirements with the board before enrolling.

A license must be displayed in the shop; barbers must carry a current license and renew per the board's cycle (verify the current renewal period and fee with the board).

Shops must be licensed and inspected; a shop license is separate from an individual barber license, and the shop must post its license.

Sanitation rules require a wet sanitizer with an EPA-registered disinfectant, a covered waste container, a clean towel supply, and a hand-washing sink with hot and cold running water.

Records: client records and service records must be maintained per board rules; chemical services require documentation of patch and strand tests.

Continuing education and renewal requirements are set by the board; confirm current hours and deadlines on the board's official site, as rules change.

Unlicensed practice and hiring unlicensed barbers are violations subject to fines and license discipline.

Advertising and signage must not misrepresent licensure; only licensed barbers may perform barbering services for compensation.

Client consultation: assess hair and scalp, discuss goals, confirm the service and price, and document the plan before beginning; obtain consent for chemical services.

Client records should include contact information, service history, formulas, patch and strand test results, and any adverse reactions.

Confidentiality: client health information and personal details are not shared; discuss client information only as needed for service.

Pricing and payment: quote prices before service, disclose add-ons, and keep accurate records for tax and inventory purposes.

Inventory control: track product usage, rotate stock (first in, first out), and store chemicals per label and safety data sheet (SDS) instructions.

Shop safety: post emergency numbers, keep a first-aid kit, maintain SDS binders for all chemicals, and keep walkways clear.

Professional ethics: do not diagnose medical conditions, do not perform services outside your training or license, and refer clients to appropriate professionals.

Team and shop culture: punctuality, cleanliness of the station, and clear communication with coworkers and clients support a professional environment.

Marketing and social media: obtain client consent before posting photos, and never post images that identify a client without permission.