MO Nail Technician study materials
MO Nail Technician study resources

MO Nail Technician cheat sheet

MO Nail Technician · Keep the key ideas within reach.

Quick reference

Infection Control and Sanitation

  • Cleaning removes visible debris; disinfection destroys most pathogens on nonporous surfaces; sterilization destroys all microbial life including spores.

  • Use an EPA-registered hospital-grade disinfectant at the label dilution and wet all surfaces for the full label contact time.

  • Porous or absorbent items such as files, buffers, wooden sticks, cotton, and porous nail forms cannot be disinfected and are discarded after one client.

  • Before disinfection, implements are washed with soap and water, rinsed, and dried; organic matter reduces disinfectant effectiveness.

  • Hand hygiene uses soap and water for at least 20 seconds; alcohol-based sanitizer is used only when hands are not visibly soiled.

  • Blood or body-fluid exposure: stop the service, put on gloves, clean the area, apply antiseptic and a bandage, then disinfect contaminated tools and surfaces.

  • Disinfected implements are stored in a clean, covered container; clean and dirty implements are never stored together.

  • Do not double-dip into product; remove product with a clean spatula or disinfected scoop, and discard contaminated product.

Quick reference

Manicuring and Pedicuring

  • Natural nail filing uses a fine-grit file with gentle strokes from corner toward center; sawing back and forth increases splitting.

  • Cuticle softener and a wooden or plastic pusher are used to push back the eponychium; nippers cut only loose hangnails or dead tissue.

  • A pedicure basin is drained, cleaned, and disinfected after every client at the label contact time, and a new liner is used each time.

  • Soaking softens the nail plate; limit soaking to about 5 to 10 minutes and dry thoroughly before polish or enhancement.

  • Nail shapes: square has a straight free edge; oval and round follow the fingertip; squoval combines a square edge with rounded corners.

  • Massage strokes include effleurage (gliding), petrissage (kneading), and tapotement (tapping); avoid inflamed, bruised, or varicose areas.

  • Do not perform pedicure services on open sores, active fungal infection, or severe dermatitis; refer the client for medical evaluation.

  • Polish application: thin base coat, two thin color coats, and top coat; thick coats wrinkle and dry unevenly.

Quick reference

Artificial Nail Enhancements

  • Ethyl methacrylate (EMA) is the standard monomer for cosmetic acrylics; methyl methacrylate (MMA) is not intended for nail enhancements.

  • Acrylic bead ratio: too wet causes shrinkage and skin exposure; too dry causes brittle, lifting product; aim for a saturated, workable bead.

  • Keep acrylic, gel, and glue off the skin and cuticle; uncured product on skin increases risk of allergic contact dermatitis.

  • Gel products cure only under a compatible UV or LED lamp for the manufacturer's stated time; test lamps and replace bulbs as directed.

  • Nail tips are sized to fit sidewall to sidewall, blended at the seam, and attached without air bubbles or excess glue.

  • Fill or rebalance enhancements every 2 to 3 weeks or sooner if lifting, cracking, or visible growth stress occurs.

  • Remove enhancements by soaking in acetone per manufacturer directions; never force, pry, or drill into the natural nail plate.

  • Refer clients with active fungal infection, open lesions, or unhealed nail trauma before applying enhancements.

Quick reference

Nail Anatomy and Disorders

  • Nail plate: hard keratin structure; nail bed: skin under the plate; matrix: growth area at the proximal base; free edge: portion beyond the fingertip.

  • Eponychium is the living skin at the proximal nail fold; cuticle is the dead tissue seal on the nail plate; hyponychium is the seal under the free edge.

  • The matrix produces nail plate cells; damage to the matrix can cause permanent ridges, splitting, or nail loss.

  • Average fingernail growth is about 3 to 4 mm per month; toenails grow more slowly, about 1 mm per month.

  • Beau's lines are transverse depressions from interrupted matrix growth; koilonychia is spooning; pitting is associated with psoriasis.

  • Onychomycosis causes thickening, discoloration, and separation; paronychia is inflammation or infection of tissue around the nail.

  • A new dark band or streak (melanonychia) or a changing pigmented lesion is referred to a physician rather than covered with product.

  • Nail technicians do not diagnose or treat nail disease; abnormal findings are documented and referred.

Quick reference

Safety, Chemicals, and Equipment

  • Safety Data Sheets (SDS) for every chemical product must be accessible; they list hazards, first aid, storage, and disposal.

  • Use local exhaust or ventilation when mixing monomers, sprays, or solvents; never mix chemicals unless the manufacturer instructs it.

  • Store flammable liquids in closed, labeled containers in a cool area away from heat, sparks, and open flames.

  • Electrical equipment must be grounded or GFCI-protected, cords inspected for damage, and tools kept away from water.

  • Ergonomic setup: adjust chair and table height, support the wrist, keep shoulders relaxed, and take breaks to reduce strain.

  • Broken glass, blades, and other sharps go into a rigid puncture-resistant sharps container, not regular trash.

  • Chemical spills are contained, absorbed, ventilated, and cleaned up according to the SDS; contaminated materials are disposed of properly.

  • Disinfect or sterilize equipment according to manufacturer instructions; autoclave only items labeled autoclavable.

Quick reference

Missouri Laws, Rules, and Regulations

  • The Missouri Board of Cosmetology and Barbering, under the Division of Professional Registration, regulates nail technician licensure and salon practice.

  • A current Missouri license is required to perform nail services for compensation; practicing without a license is prohibited.

  • Missouri nail technician training is completed in an approved program before examination and licensure.

  • Licensees must display or make available their license as required and work only within the licensed scope of practice.

  • Salons and schools are subject to board sanitation rules, including cleaning and disinfecting implements between clients.

  • Nail technicians may not diagnose or treat disease, prescribe medication, or perform medical procedures.

  • Board rules require single-use items to be discarded and reusable implements to be cleaned and disinfected.

  • Violations of Missouri cosmetology laws or board sanitation rules can result in fines, probation, suspension, or license revocation.

Quick reference

Client Consultation and Communication

  • Health history includes allergies (acrylates, nickel, latex), medications, skin disease, diabetes, circulatory problems, and prior reactions.

  • Informed consent documents the service, products, risks, aftercare, and the client's permission before starting.

  • A patch test is used when product history or manufacturer directions indicate allergy risk; a positive reaction means no service with that product.

  • Contraindications such as open lesions, fungal infection, severe dermatitis, or recent hand surgery require referral, not service.

  • Active listening and open-ended questions identify the client's goals, lifestyle, and maintenance preferences.

  • Nail technicians do not diagnose; they describe observations and recommend medical evaluation when findings are abnormal.

  • Record products used, service date, and any reaction; documentation supports continuity and helps identify sensitivities.

  • Explain home care and rebooking interval so the client can maintain the service and recognize problems.

Quick reference

Skin and Hand/Arm Anatomy

  • Skin layers from outer to inner: epidermis, dermis, subcutaneous tissue; the epidermis is avascular and the dermis contains vessels and nerves.

  • Epidermal layers from deep to superficial: stratum basale, spinosum, granulosum, lucidum (palms and soles), corneum.

  • The dermis contains collagen and elastin fibers, blood vessels, lymphatics, nerves, sebaceous glands, and sweat glands.

  • Hand bones: eight carpals (wrist), five metacarpals (palm), and fourteen phalanges (fingers).

  • Flexor muscles close the fingers and extensor muscles open them; tendons attach these muscles to bones.

  • The radial and ulnar arteries supply the hand; the median, ulnar, and radial nerves provide sensation and motor control.

  • Lymph vessels drain the hand and arm toward lymph nodes; signs of infection include redness, warmth, swelling, and pain.

  • Skin functions include protection, sensation, thermoregulation, excretion, and vitamin D synthesis.