2.3 Prohibited Implements, Products & Practices
Key Takeaways
- OAC 4713-1-07(G)(1) makes use of a bladed implement to remove skin cells below the stratum corneum an out-of-scope act, which is the provision that bars Credo blades and callus shavers in Ohio.
- OAC 4713-15-07 permits styptics only in liquid or powder form applied by a single-use disposable item, which excludes solid styptic pencils and lump alum.
- Ohio has no numbered rule naming methyl methacrylate: MMA has been on the Board's non-approved chemical list since 1997 and is cited through OAC 4713-1-07, with the practical examination enforcing it as an odour-free monomer requirement.
- OAC 4713-15-09(B) requires acrylic, dip or similar powder to be decanted into an individual container for each client, the container discarded or disinfected, and unused powder discarded.
- OAC 4713-15-06 requires creams and semi-solids to be removed from containers with a disposable spatula or a cleaned and disinfected non-porous spatula unless the product is pump, squeeze or spray dispensed.
Prohibited Implements, Products and Practices in Ohio Nail Salons
Ohio State Board Exam Alert: Ohio's prohibitions are real, but three of the four are not where review books say they are. Blades sit in OAC 4713-1-07(G)(1); styptics sit in OAC 4713-15-07; MMA sits in board policy, not in a numbered rule. Learn the source with the prohibition — Ohio examines its own law.
Some of the fastest routes to a Board citation involve a single item sitting in a drawer. This section covers what a manicurist may not use, what may not be done to a client, and where each prohibition actually comes from.
1. Bladed Implements: Credo Blades, Callus Shavers and Razor Peelers
Source: OAC 4713-1-07(G)(1), reinforced by OAC 4713-8-07(D).
OAC 4713-1-07(G) makes it a ground for fine, suspension, revocation or denial to perform services "not within the scope of barbering, cosmetology, or branch of cosmetology for which the individual is licensed, including, but not limited to: (1) Use of a bladed implement to remove skin cells that are below the stratum corneum, including dermaplaning, skin leveling, or other similar procedures."
That phrasing is worth parsing:
- "Below the stratum corneum" is the legal line. The stratum corneum is the outermost, fully keratinised, non-living layer of the epidermis. A pumice stone or foot file abrading dead corneocytes stays above the line. A blade paring into the stratum lucidum or stratum granulosum crosses it.
- "Bladed implement" captures Credo blades, callus shavers, razor-type peelers and scalpels regardless of brand or how the technician describes their intent.
- OAC 4713-8-07(D) closes the circle for manicurists: "the scope of practice is limited to beautification, relaxation, and non-invasive services only."
Why the rule exists clinically. Callus is a protective hyperkeratotic response to friction and pressure. Paring it back to living dermis in a client with diabetes or peripheral arterial disease can produce a non-healing ulcer; the profession's worst outcomes — amputations traced to a salon pedicure — begin this way.
What is permitted instead: manual abrasive foot files and pumice, and cosmetic callus-softening products containing keratolytics such as urea, used per the manufacturer's instructions. Smooth the surface; never reduce the depth with an edge.
2. Cutting Living Tissue
Source: OAC 4713-8-07(D) and OAC 4713-1-07(G).
The prohibition on blades below the stratum corneum runs alongside a broader boundary: a manicurist may not cut, nip, trim or excise living skin.
| Structure | Living? | May a manicurist cut it? |
|---|---|---|
| Cuticle — the colourless, non-living tissue shed from the underside of the eponychium onto the nail plate | No | Yes — it may be loosened with a pusher and removed from the plate |
| Eponychium — the living proximal fold sealing the matrix | Yes | No |
| Lateral nail folds / perionychium | Yes | No |
| Hyponychium — living seal under the free edge | Yes | No |
| Callus | Living epidermis below the corneum | Surface abrasion only — no blade |
| Ingrown nail corner in an inflamed toe | Involves living, often infected tissue | No — refer to a physician or podiatrist |
Note what this does not mean. The Board's own practical examination scores "proper use of nippers demonstrated" during the basic manicure. Nippers are lawful tools; the offence is where you point them. Nipping a tag of dead cuticle or a hangnail's loose dead tissue is within scope; nipping the live eponychial fold is not.
3. Styptics: Liquid or Powder Only
Source: OAC 4713-15-07 (the entire rule).
"Styptics to arrest bleeding shall be used only in liquid or powder form, and shall be applied by a single-use, disposable item."
That single sentence disposes of the solid styptic pencil and the lump alum block: they are neither liquid nor powder, and they cannot be applied by a disposable item because the block is the applicator. Pressed against a bleeding nail fold, the block picks up blood and serum and carries it to the next client — the classic vehicle-borne transmission route.
Compliant practice: liquid styptic or powdered alum dispensed onto a fresh cotton swab, applied once, and discarded immediately into a lined waste container. Never return an applicator to the bottle.
4. Methyl Methacrylate (MMA)
Source: Ohio Board policy — not a numbered rule.
This is a case where being precise about authority matters. Ohio placed MMA on its list of non-approved chemicals in 1997, after reviewing FDA and industry evidence, and adopted the position that the use, storage or dispensing of MMA-based nail products is grounds for citation. Enforcement runs through OAC 4713-1-07 (unprofessional conduct and out-of-scope practice) rather than a dedicated code section, and inspectors ask salons to produce safety data sheets for nail products to verify ingredients.
On examination day the policy takes a very concrete form: the Manicuring Practical TIP requires an odour-free nail liquid, and states that using a liquid with an odour "will result in your dismissal from this exam." Odour is the practical proxy — MMA's sharp, distinctive smell is what a monomer ban looks like at the exam bench.
Why MMA is rejected:
| Property | MMA | EMA (ethyl methacrylate) |
|---|---|---|
| Molecule size | Small, penetrates readily | Larger, poorer skin penetration |
| Cured film | Extremely rigid, does not flex with the natural nail | Flexible enough to absorb impact |
| Failure mode under trauma | The enhancement does not break — the natural nail plate is torn from the bed | The enhancement cracks or lifts, sparing the plate |
| Removal | Will not dissolve properly in acetone; must be filed off, usually with aggressive drilling | Dissolves in acetone |
| Sensitisation | Potent contact allergen; respiratory irritant | Still a sensitiser, but formulated for cosmetic nail use |
| Intended use | Dental and orthopaedic acrylics, bone cement | Cosmetic nail enhancement |
A client consent form does not cure a Board violation. Neither does buying the product legally: MMA itself is not a controlled substance, it is simply not approved for cosmetic nail application.
5. Powder Decanting: An Ohio Rule Most Technicians Break
Source: OAC 4713-15-09(B).
"Acrylic, dip, or similar powder used during the practice of manicuring shall be dispensed into individual containers prior to use for each client. The containers must be disposed of or properly disinfected after each use and any unused powder must be properly discarded."
Read that against how dip powder is usually applied. Dipping a client's product-coated finger directly into the manufacturer's jar, then serving the next client from the same jar, violates this rule outright. Compliance requires:
- Pour the powder needed for this client into a disposable or disinfectable individual container.
- Work only from that container.
- Discard the leftover — it does not go back in the jar.
- Discard or disinfect the container itself.
The same logic covers acrylic polymer powder decanted into a dappen dish. Paragraph (A) of the same rule covers talc: dispensed from a shaker and applied with a single-use disposable item, a freshly laundered towel or a synthetic brush disinfected per OAC 4713-15-03.
6. Creams and Semi-Solids
Source: OAC 4713-15-06.
"All creams and other semi-solid substances; except for products that are dispensed from a pump, squeeze, or spray container, shall be removed from containers with a disposable spatula or a non-porous spatula that has been cleaned and disinfected with an appropriate disinfectant."
Fingers never enter a jar of massage cream, cuticle cream or masque. Pump and squeeze packaging is exempt because the product never becomes exposed to the room.
7. Service Refusal for Contagious Conditions
Source: OAC 4713-15-13.
The rule cuts both ways, which candidates routinely miss:
- (A) A licensee shall not perform a service on a client who has visible swelling, eruption, redness, bruising on skin, rash, or a parasitic infestation in the area where a service is to be performed, without written permission from a physician.
- (B) A licensee with any of those signs shall not practise or otherwise provide a service in a salon without written physician permission.
- (C) Where an owner or manager suspects a worker has those signs, the salon shall obtain a written statement from a physician that there is no danger of infection, and shall ask the individual not to work until it is provided.
- (D) Every area and item of equipment that contacted the affected individual must then be cleaned and disinfected with an appropriate disinfectant.
The written-physician-permission mechanism is the exam-relevant detail. The technician does not decide the condition is harmless, and the client's own assurance is not enough — the gate is a document from a physician.
8. Medical, Curative and Therapeutic Claims
Source: OAC 4713-8-07(D).
"Manicurists shall not provide any service that claims to have a medical or healing benefit." A manicurist may not diagnose, may not prescribe, may not treat, and may not advertise that a pedicure, foot soak or oil blend addresses diabetes, circulation, arthritis, fungal disease or plantar pain. What a licensee may say is descriptive and referral-oriented: "I can see something on this nail that I'm not permitted to work over, and I'd like you to have a physician or podiatrist look at it."
Combine this with OAC 4713-1-07(G)(2) and (3): reflexology and lymphatic drainage are out-of-scope services in their own right, whether or not any health claim is attached to them.
An inspector finds a Credo-style callus shaver in a technician's closed drawer. The technician says she only uses it on family at home. Which Ohio provision does the Board rely on, and what is the legal problem?
A dip-powder technician dips each client's product-coated finger straight into the manufacturer's jar and reuses the jar all day. Which Ohio rule does this violate, and what does compliance look like?
A regular client arrives for a pedicure with a red, swollen, weeping rash across the top of her left foot. She says her doctor told her over the phone it is only contact dermatitis and is not contagious. Under OAC 4713-15-13, what may the manicurist do?
Why does the Ohio Manicuring Practical Testing Information Packet require an odour-free nail liquid, on pain of dismissal?
During a manicure service, a client experiences a minor capillary nick along a hangnail and begins to bleed. Under Ohio Board infection control standards (OAC 4713-15-07), how must the manicurist legally arrest the bleeding?