A medical directorfor Registered Nurses

The short answer

An RN in Ontario can inject. An RN in Ontario cannot decide on their own to inject.

That distinction is the whole subject. Your registration with the College of Nurses of Ontario establishes that you are a Registered Nurse; it does not, by itself, put cosmetic injection within your authority to initiate. The gap between what you may do and what you may start is closed by an authorizing mechanism issued by an authorized provider.

Everything below explains what that means in practice for an RN specifically.

Two controlled acts, every single time

Every cosmetic injection you perform engages two controlled acts under the Regulated Health Professions Act, 1991.

The first is administering a substance by injection. The second is performing a prescribed procedure below the dermis. Both are engaged by a neuromodulator. Both are engaged by a dermal filler. There is no version of aesthetic injecting where only one applies.

An RN may perform a controlled act when it has been authorized, but may not initiate it. Initiation means deciding, on your own authority, that this client should have this intervention. That decision is not yours to make as an RN.

Fillers are not a drug question, and this trips people up

Neuromodulators are prescription drugs in Canada. Dermal fillers are not. Health Canada regulates fillers as Class III medical devices, and as Class IV where the product is permanent.

A great deal of confusion follows from that fact, because people reason that if filler is not a prescription drug, no prescriber needs to be involved and therefore no authority is needed. The conclusion does not follow. Drug scheduling and controlled acts are two separate regimes. Filler escapes the first and is squarely inside the second.

Practically: for a neuromodulator you need a prescription and an authorizing mechanism. For filler you need an authorizing mechanism. You need the mechanism either way, and it is the mechanism that this page and this service are about.

What an authorizing mechanism looks like for an RN

Two forms.

A direct order names a client. An authorized provider assesses that person and orders the intervention for them. Precise, unambiguous, and impractical as the basis of a working aesthetic practice unless the provider is assessing every client.

A directive names circumstances rather than a person. It states the intervention, the client group it covers, the conditions that must be satisfied before you proceed, and the points at which you must stop and consult. Any client who genuinely meets those conditions is covered. Any client who does not is not.

Before you inject under a directive, three conditions have to hold at once:

1. The directive is current and genuinely covers this intervention for this client.
2. You have the competence to perform it on this person, including managing the foreseeable complications.
3. Nothing about the situation puts it outside the conditions written into the document.

If any of those fails, you stop. The directive is a boundary, not a permission slip.

Competence is yours and cannot be bought

A directive gives you authority. It does not give you skill, anatomical knowledge, or the judgement to recognise when something is going wrong.

The College holds you accountable for practising only within your competence, and competence is specific. Being competent with one facial area does not make you competent with another. Being competent with neuromodulators says nothing about your competence with filler, where the complication profile is entirely different and the consequences of getting it wrong are more serious.

This is also why “certified injector” is a phrase to be wary of. It is not a protected title, it does not appear in the Nursing Act, 1991, and no course in Ontario confers legal authority to practise. The protected titles are nurse, Registered Nurse, Registered Practical Nurse, Nurse Practitioner and Registered Nurse (Extended Class). If a training provider implies their certificate makes you legally able to inject, they are describing something that does not exist.

Why a Nurse Practitioner can be your authorizing provider

Ontario aesthetic clinics have historically gone looking for a physician for this role. That is convention rather than requirement.

A Nurse Practitioner is an autonomous provider. Alex Dinovich, Nurse Practitioner and Medical Director at Bradford Skin Clinic and Medical Spa, holds College of Nurses of Ontario registration 13564840 and can assess, diagnose, prescribe, issue direct orders and author directives in her own right. That covers every element an RN needs from an authorizing mechanism, including prescribing where a neuromodulator is involved.

There is a second, quieter advantage. She is regulated by the same College you are, reads the same standards you read, and writes directives in the College’s own vocabulary. Requirements differ by regulator, and the specifics of any particular arrangement are confirmed in conversation.

The rules are being reviewed

The College of Nurses of Ontario published a new Aesthetic Services practice guideline dated 3 July 2026, and has said it continues to review how authorizing mechanisms, including directives and delegation, are used in aesthetic practice.

So requirements may change. If you take one operational point from this page, take this one: a directive is a living document, and part of what a directorship arrangement should provide is somebody who notices when the ground moves and reissues your documents accordingly.

Where to start

If you are already trained and practising, the conversation is about your scope: what you inject, on whom, where, and what you are competent to manage when it goes wrong.

If you are not trained yet, authority is the wrong problem to be solving. Competence comes first, and we will say so.

Call 647-333-6805. Bradford Skin Clinic and Medical Spa, 444 Holland Street West, Unit 2, Bradford, Ontario. Directorship arrangements are available to RNs across the province.