INI-SS study guide
INI-SS · Work through your exam, one topic at a time.
The INI-SS (International Nail Institute - Structured Specialist / Nail Specialist Certification) is a professional credential intended to demonstrate that a nail technician has mastered both the technical and the business sides of the trade. It suits working nail technicians who want a portable, recognizable marker of competence, newer technicians building a structured study path, and salon owners or educators who need a defensible benchmark for hiring and training. The INI-SS study guide has 9 sections and about 2,340 words.
01Infection Control, Sanitation, and Safety
Domain 1 covers how to prevent pathogen transmission between clients and technicians and how to work safely with chemicals and tools. The exam favors practical decisions: what must be cleaned, what must be disinfected, and when a service must stop.
290 words, about 1 min02Anatomy and Physiology of the Hand, Nail, and Skin
Domain 2 tests the structures of the hand, nail unit, and skin well enough to recognize normal variation and avoid damaging living tissue. Nail unit: matrix (growth site), nail plate, nail bed, cuticle, eponychium, hyponychium, lunula, lateral folds, free edge.
274 words, about 1 min03Nail Disorders, Diseases, and Contraindications
Domain 3 separates cosmetic nail disorders from contagious or systemic disease and identifies when a service is contraindicated. Disorder: abnormality in appearance or growth without infection (ridges, spots, Beau's lines, onycholysis).
234 words, about 1 min04Manicuring, Pedicuring, and Natural Nail Care
Domain 4 covers safe, effective natural nail services and the sanitation details that differ between manicure and pedicure. Shape with a fine-grit file (usually 180 or higher for natural nails) in one direction; sawing back and forth creates heat and delamination.
268 words, about 1 min05Artificial Nail Enhancements and Application Techniques
Domain 5 tests product chemistry plus technique: proper prep, mix ratio, curing, and safe removal determine whether an enhancement lasts and whether it damages the plate. Acrylic: liquid monomer plus polymer powder.
281 words, about 1 min06Nail Art, Design, and Finishing
Domain 6 evaluates design choices, product control, and finishing so nail art stays sanitary and durable. Design principles: balance, proportion, focal point, and contrast.
234 words, about 1 min07Client Consultation, Communication, and Professional Ethics
Domain 7 tests the consultation as a risk-management tool: what you ask, what you document, and when you decline. Intake: medications, allergies, pregnancies, skin conditions, prior reactions, occupation, and expectations.
241 words, about 1 min08Product Chemistry, Tools, and Equipment
Domain 8 connects chemistry to tool selection: pH, monomers, polymers, solvents, and abrasives explain why products behave as they do. pH measures acidity/alkalinity.
264 words, about 1 min09Salon Business, Law, and State Regulation Fundamentals
Domain 9 covers the business and legal framework: licensure, scope, employment status, insurance, and records. License: individual practitioner license and salon license, both current and displayed as state rule requires.
254 words, about 1 min