Nail Art: Media, Design Principles, and Art-Specific Hygiene
Media and tools
Know what each medium is and what it needs to set. Nail lacquer air-dries and may be used over a base coat. Acrylic paint (water-based) also air-dries and is the standard for fine freehand detail. Gel polish and gel paints cure only under a UV/LED lamp and must not be mixed with lacquer in the same layer. Airbrush color requires masking, ventilation, and a properly thinned, airbrush-specific paint. Foils, striping tape, stencils, decals, stamping plates, and dried-slice art are applied over a tacky or cured surface and sealed with top coat. Rhinestones and 3D ornaments are set with adhesive or a bead of enhancement product and sealed at the edges so they do not catch on clothing or lift.
Design principles
Questions test vocabulary more than taste. Balance is distribution of visual weight; proportion is the relationship of design size to nail size; rhythm is repetition of an element; emphasis is a single focal point. In color theory, complementary colors sit opposite the wheel and create high contrast; analogous colors sit adjacent and feel harmonious; warm colors advance the design, cool colors recede. Contrast improves readability of fine lines. Work with the client's nail shape and hand: a busy design overwhelms a short, narrow nail.
Hygiene specific to nail art
Art introduces extra reservoirs. Never double-dip a brush into a shared polish bottle after touching skin - pour out a working amount and discard the remainder for that client. Brushes used with enhancement products are cleaned with the proper solvent, and reusable stamping plates, dotting tools, and palettes are nonporous and must be cleaned and disinfected between clients. Porous items such as sponges, cotton, and stencils are single-use. Keep monomer and primer away from open flame, and never apply art product over broken skin.
Rule of thumb: anything that touches the client and is porous is used once; anything nonporous and reusable joins the disinfectant cycle before the next client.
Removal cautions
Soak off gel and wraps with the manufacturer's remover rather than picking or filing aggressively, which damages the nail plate.