NH Barber cheat sheet

Barbering

• Sanitation levels: sterilization destroys all microorganisms including spores; disinfection kills most pathogens on surfaces; sanitation reduces contaminants to safe levels.

• Bloodborne pathogen rule: after any exposure, wash with soap and water, report the incident, and use a barrier (gloves) for all blood-contact tasks.

• Phenolic disinfectants are tuberculocidal and EPA-registered for hospital use; quats are effective but may not kill TB; bleach (1:10) is a broad-spectrum option.

• Hair growth phases: anagen (growth, 2–7 years), catagen (transition, 2–3 weeks), telogen (resting, ~3 months); shed hair is normally telogen club hair.

• Hair texture categories: fine, medium, coarse; density (thin to thick) and porosity (low, normal, high) determine product absorption and processing time.

• Skin layers: epidermis (outer, protective), dermis (nerves, glands, follicles), subcutaneous (fat); a nick into the dermis is a true cut.

• Facial shapes: oval (balanced), round, square, oblong, heart, diamond, triangle, pear; style choices aim to balance width and length.

• Shaving: lather lifts and holds moisture; shave with the grain to reduce irritation; a razor angle near 30° and no pressure avoids razor burn.

• Beard design: outline with the natural growth pattern; cheek line, neckline (one finger above Adam's apple), and symmetry checks before detailing.