NJ Barber cheat sheet

Hair grows roughly 1/2 inch (about 1.25 cm) per month; a "quarter inch" trim removes about two weeks of growth.

Wet hair stretches up to 30-50% of its length; cut wet only when the finished look will be styled wet, because dry length will appear shorter.

Elevation (lifting the hair away from the head) controls graduation: 0 degrees = blunt/one-length, 45 degrees = graduated, 90 degrees = uniform layers, 180 degrees = long layers.

A blunt cut is created by cutting at 0 degrees elevation to a stationary guide; razor cutting softens the perimeter and adds texture.

Cross-checking (parting perpendicular to the original section) reveals uneven lines before the client leaves the chair.

Clipper guards: #1 = 1/8 inch, #2 = 1/4 inch, #3 = 3/8 inch, #4 = 1/2 inch; a #00000 is a balding clipper near 1/100 inch.

Taper vs. fade: a taper leaves visible weight at the nape and temples; a fade blends to the skin (skin fade) with no detectable line.

Shear over-comb technique: the comb holds the hair and the shears cut only the hair protruding through the comb's teeth; the comb never cuts.

Point cutting, notching, and slicing are texturizing techniques performed on dry hair to reduce bulk at the ends without shortening the perimeter.

Beard hair has a triangular cross-section; a sharp blade cuts cleanly, while a dull blade tears the cuticle and causes razor burn and ingrown hairs.

Shave with the grain first (usually downward on the face and neck); against-the-grain passes increase closeness but also irritation risk.

Hot towel before the shave softens the hair and opens follicles; a cool towel after tightens the skin and closes pores.

Lather must be worked into a dense, wet foam; dry or thin lather lets the razor skip and nick the skin.

Stretch the skin taut opposite the direction of the razor stroke to flatten the skin and lift the hair for a closer, safer cut.

A straight razor should be held at roughly a 30-degree angle to the skin; too flat tugs, too steep scrapes.

Never shave over moles, raised lesions, active acne, or broken skin; refer those areas to a physician rather than working around them.

Beard design: outline the cheek line and neckline using the client's natural growth pattern; the neckline typically follows about one to two finger-widths above the Adam's apple.

Astringent or witch hazel after the shave removes residue and tightens the skin; a moisturizer or balm follows to restore the barrier.

Sanitize = reduce pathogens on surfaces to a safe level (EPA-registered disinfectant); sterilize = destroy all microbial life, including spores (autoclave).

Implements that contact skin and draw blood (razors, nippers, straight razors) are single-use or must be disinfected with a hospital-grade, EPA-registered tuberculocidal disinfectant.

Disinfectant contact time is set by the manufacturer's label; tools must be fully immersed for the full time, not just wiped.

Non-porous items (combs, clips, shears) are washed with soap and water, dried, then immersed in disinfectant; porous items that cannot be disinfected are discarded.

Hand washing with soap and warm water for at least 20 seconds is required before and after each client and after removing gloves.

Blood and body-fluid spills: wear gloves, absorb with disposable towels, clean with detergent, then disinfect with an EPA-registered product labeled for the pathogen; follow OSHA bloodborne-pathogen rules.

A blood exposure incident requires washing the area, reporting it, and documenting it; HBV vaccination is offered to employees at no cost under OSHA.

Clean towels and capes are stored separately from soiled ones; a closed container holds soiled linens away from client areas.

Pedicure/barber tools with moving parts must be disassembled where the manufacturer allows so disinfectant reaches all surfaces.

The hair shaft has three layers: cuticle (outer protective scales), cortex (bulk, pigment, and strength), and medulla (central core, often absent in fine hair).

pH scale: hair and scalp prefer mildly acidic products near pH 4.5-5.5; alkaline shampoos (higher pH) swell the cuticle and strip color.

The scalp's acid mantle and sebum protect against microbes; over-washing or harsh detergents disrupt it and can cause flaking.

Hair is roughly 88% protein (keratin), 3% moisture, and small amounts of lipids and trace minerals; wet hair is weaker and breaks more easily.

Dandruff (pityriasis) responds to zinc pyrithione, selenium sulfide, or ketoconazole; thick scales and redness may indicate seborrheic dermatitis or psoriasis and warrant referral.

Tinea capitis (ringworm of the scalp) is fungal, contagious, and requires medical treatment; barbers must not treat it and must disinfect all tools after any contact.

Contraindications for chemical or heat services include open scalp lesions, recent chemical burns, and undiagnosed hair loss; patch-test color products 24-48 hours ahead.

Scalp massage increases circulation; use fingertips, not nails, and avoid vigorous massage over inflamed or broken skin.

Barbering in New Jersey is regulated by the State Board of Cosmetology and Hairstyling within the Division of Consumer Affairs; the board licenses barbers and shops.

A licensed barber may shave, cut, style, and perform facial hair services; chemical services and skin care are governed by the separate cosmetology/esthetics scopes defined in statute.

Shop licensure: the shop must hold a current shop license, display licenses conspicuously, and have a designated licensed owner/manager responsible for compliance.

Sanitation rules require a covered waste receptacle, a wet-disinfectant container for implements, and clean/soiled linen separation; violations can bring fines and license action.

Continuing education and license renewal cycles are set by the board; verify current hours and renewal dates on the Division of Consumer Affairs site rather than relying on memory.

A licensee must provide services only in a licensed shop; mobile or home barbering is restricted, and unlicensed practice is a violation subject to penalties.

Client records and blood-exposure documentation must be retained as required; posting of the shop license and sanitation rules is mandatory in the establishment.

Advertising and signage may not imply services outside the licensed scope; using the title "barber" requires an active license.

Chair utilization = booked service hours / available chair hours; it is the primary driver of shop revenue per chair.

Revenue per chair = total service revenue / number of chairs; compare monthly to spot underperforming stations.

Retail attachment rate = retail units sold / clients served; industry benchmarks commonly run 10-20% of clients buying product.

Cost of goods for a service should stay roughly 10-15% of the service price; above that, reprice or renegotiate supply costs.

No-show policy works only if it is written, disclosed at booking, and applied consistently; a card on file or deposit reduces loss.

Commission vs. booth rent: commission pays a percentage of service revenue (employer covers costs and taxes); booth rent is a flat fee with the renter self-employed.

OSHA requires a written bloodborne-pathogen exposure control plan, hepatitis B vaccination offered at no cost, gloves, and training for employees with occupational exposure.

Client consultation documentation (patch tests, chemical history, allergies) protects both the client and the licensee if a reaction is alleged.

Break-even clients per month = fixed monthly costs / (average ticket - variable cost per client); below that number the shop loses money.