ID Nail Technician cheat sheet

Idaho regulates nail technology through the Board of Cosmetology under the Division of Occupational and Professional Licenses; licensure is required before performing services for compensation.

A nail technologist license requires completion of an approved program (commonly 400+ clock hours in Idaho) plus passage of the state written and practical examinations; verify current hour requirements with the Board.

Licenses renew on a fixed cycle (Idaho uses a two-year renewal period); continuing education and a renewal fee are required to keep the license active.

Salon/facility registration is separate from individual licensure; a licensed technician may only practice in a licensed or registered establishment, or as allowed for mobile services.

Display requirements: the individual license and the establishment license must be visible to clients in the workplace.

Sanitation and disinfection standards, single-use item rules, and prohibited practices are set in Board rule, not local ordinance; the stricter standard applies when rules overlap.

Unlicensed practice, allowing an unlicensed person to perform services, and falsifying license information are grounds for discipline, fines, or license denial.

Client records and informed consent for services are part of professional standards; keep records of contraindications, products used, and any adverse reactions.

Cleaning removes visible debris with soap and water; sanitizing reduces pathogens on surfaces; disinfection destroys most pathogens on nonporous implements; sterilization destroys all microbial life including spores.

EPA-registered hospital-grade disinfectant with a label claim for the specific organism and the correct contact time is required for implements; follow the manufacturer's dilution and immersion time exactly.

Porous items (buffers, files, wooden sticks, cotton, sponges) cannot be reliably disinfected and are single-use; discard after each client.

Implements must be cleaned before disinfection; organic debris inactivates disinfectants. Use a covered container, fully immerse, and use a timer.

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

Gloves are single-use and changed between clients and when torn; gloves do not replace hand washing.

A blood or body fluid exposure requires stopping the service, washing the area, applying an appropriate antimicrobial, reporting per policy, and properly disposing of contaminated materials in a biohazard bag.

Disinfectant solutions must be changed per manufacturer guidance (often daily or when visibly soiled); label containers with contents and date.

Tools that contact broken skin or are contaminated with blood must be handled as biohazard; single-use sharps go in a sharps container.

Nail plate: hard keratin structure; nail bed lies beneath it and contains nerves and blood vessels; the free edge extends beyond the fingertip.

Nail matrix: actively dividing cells that produce the nail plate; damage to the matrix causes permanent nail deformity. The lunula is the visible portion of the matrix.

Cuticle (eponychium) seals the nail base; the hyponychium seals under the free edge; the nail folds are the skin borders on the sides.

Nail growth averages about 3 mm (1/8 inch) per month for fingernails and about 1 mm per month for toenails; growth slows with age and in winter.

Nail plate is composed mainly of keratin, with sulfur cross-links giving hardness; water content affects flexibility, and repeated wet-dry cycling causes splitting.

Skin layers: epidermis (outer, avascular), dermis (nerves, blood vessels, glands), subcutaneous layer (fat). The nail bed is a specialized epidermal structure.

Sebaceous glands secrete sebum; sweat glands regulate temperature. Both are relevant to product adhesion and skin reactions.

Blood supply to the nail bed comes from digital arteries; circulation problems (diabetes, Raynaud's) increase risk of infection and slow healing.

Consultation should record medical history, medications, allergies, occupation, prior nail services, and client goals; document and update each visit.

Contraindications requiring medical referral: active infection (paronychia, fungal infection), open wounds, severe inflammation, unexplained discoloration, and recent surgery or injury to the digit.

Fungal infection signs: thickened, crumbly, discolored (yellow/brown) nail plate; do not perform enhancement services over suspected infection.

Paronychia is inflammation/infection of the nail fold; swelling, redness, and pus warrant referral, not service.

Nail psoriasis, lichen planus, and pitting are medical conditions; a technician may service only healthy tissue and must not diagnose.

Allergy to acrylates, formaldehyde, or toluene sulfonamide-formaldehyde resin is a reason to avoid the product class; patch testing should be done by a physician.

Contraindications for pedicure: diabetes with neuropathy, poor circulation, and anticoagulant therapy increase risk; follow facility policy and obtain medical clearance when in doubt.

Refer, do not treat: any lesion, mole change, or discoloration of unknown cause should be evaluated by a physician.

Standard sequence: consultation and hand washing, remove old product, shape and file, soak, push back cuticle, clean under free edge, massage, apply product, finish.

File in one direction along the sidewall to the tip to reduce splitting; use a fine-grit file for natural nails and avoid back-and-forth sawing.

Do not cut living tissue; the cuticle (eponychium) should be gently pushed back, not cut. Nippers are for hangnails and dead tissue only.

Pedicure: use single-use liners or a disinfected basin; whirlpool tubs require cleaning and disinfection between clients per manufacturer instructions.

Soak time should be limited (about 5–10 minutes) to avoid over-softening the nail plate; excess water causes splitting and reduces adhesion.

Massage improves circulation and client comfort; avoid massage over inflamed, broken, or varicose areas.

Hot oil or paraffin treatments require temperature control; test on the technician's wrist before applying to the client.

Finishing: apply base coat, color, and top coat; cap the free edge to seal; allow adequate dry time between coats.

Tip sizing: choose a tip that fits sidewall to sidewall without pressure; too small causes stress and lifting, too large causes bubbles and gaps.

Tip placement: the well should sit at the free edge with a slight smile line; blend the tip seam flush with the natural plate before overlay.

Nail wrap materials: silk, fiberglass, and linen. Silk gives a smooth, natural look; fiberglass adds strength; linen is the most durable.

Wrap resin (cyanoacrylate) cures by moisture, not by UV light; apply thin coats and avoid skin contact to prevent bonding to tissue.

Overlay: apply a thin, even layer over the natural nail to add strength without bulk; the apex should be at the stress area.

Stress area is the free-edge-to-nail-bed junction; reinforcement here prevents breakage.

Do not apply tips or wraps over infected, damaged, or excessively thin nail plates; assess plate integrity first.

Removal: soak in acetone or use the manufacturer's remover; never force or pry off wraps, which removes nail layers.

Acrylic system: liquid monomer (EMA or MMA) plus polymer powder; the ratio of liquid to powder controls set time and strength.

Proper mix ratio is roughly a medium-wet bead; too wet causes shrinkage and bubbles, too dry causes brittle, cloudy product.

Polymerization is an exothermic chemical reaction; a hot bead on the nail can cause a burning sensation. Use a smaller bead or cool the mix.

MMA (methyl methacrylate) monomer is banned in many jurisdictions and is not for cosmetic use; EMA (ethyl methacrylate) is the standard professional monomer.

Apex placement: build the apex at the stress area, thin at the cuticle and sidewalls, and cap the free edge.

Sculpting: use a properly sized brush, wipe the brush on a lint-free pad, and avoid trapping air.

Filing: use a coarse bit or file only on product, not on the natural plate; finish with finer grits and buff to a smooth surface.

Removal: soak in acetone or use a coarse file to reduce thickness; never use a drill to remove product down to the natural nail.

Gel is a photoinitiator system: it cures only under UV or LED light of the correct wavelength and intensity, not by air drying.

LED lamps cure faster than UV lamps but require matching photoinitiators; use the lamp specified by the gel manufacturer.

Cure time depends on gel type, lamp wattage, and layer thickness; thin coats cure more reliably than thick ones.

Inhibition layer (the tacky surface after curing) is normal; wipe with the manufacturer's cleanser, not alcohol unless specified.

Gel polish vs. hard gel: gel polish is a flexible color coat over base; hard gel is a structural enhancement built with an apex.

Overexposure to uncured gel can cause allergic contact dermatitis; avoid skin contact and fully cure all product.

Do not use a UV/LED lamp if the client is photosensitive or on photosensitizing medication without medical clearance.

Removal: soak in acetone or use the manufacturer's remover; do not scrape or force gel off the plate.

Nail shapes: square, squoval, oval, almond, stiletto, and coffin; shape should suit the client's lifestyle and nail plate.

Filing sequence: coarse grit to shape, medium to refine, fine to smooth; always finish in one direction at the free edge.

Squoval combines a square free edge with rounded corners to reduce chipping; almond tapers to a rounded point.

Nail art techniques: hand painting, stamping, foils, decals, glitter, and encapsulation; each requires a proper base and top coat seal.

Encapsulation: place art or glitter in a clear product layer, then build and seal; avoid trapping air or moisture.

Top coat seals the design and adds shine; cap the free edge to prevent lifting and chipping.

Sanitation between colors: do not double-dip brushes or tools; use a palette and clean tools between clients.

Finishing: buff to remove ridges, clean the surface, and apply cuticle oil to the surrounding skin, not the product.

SDS (Safety Data Sheet) must be available for every chemical product in the salon; OSHA Hazard Communication requires employee access and training.

SDS sections include identification, hazards, composition, first aid, firefighting, accidental release, handling/storage, exposure controls, and disposal.

Acrylates, formaldehyde, and toluene sulfonamide-formaldehyde resin are common sensitizers; avoid skin contact and ensure ventilation.

Vapors from monomer and solvents require adequate ventilation; use local exhaust or open windows and avoid inhaling concentrated fumes.

Flammable products (acetone, alcohol, monomer) must be stored away from ignition sources and in closed, labeled containers.

Never mix products unless the manufacturer specifies; mixing can create unexpected reactions or toxic vapors.

Waste disposal: follow local rules for flammable liquids and contaminated materials; do not pour solvents down the drain.

PPE: nitrile gloves, eye protection, and a mask as needed; change gloves when contaminated and wash hands after removal.