CASL-Compliant Email Marketing for Medical Spas

Email is one of the most cost-effective ways for a clinic to stay in touch with clients — but in Canada it comes with specific legal requirements. This guide explains email marketing for medical spas that complies with CASL, Canada's anti-spam legislation, and how to build a med spa email marketing program that clients welcome rather than delete.

It's a practical overview, not legal advice. CASL has detailed rules and exceptions, so have your consent wording and processes reviewed by an adviser, and use the official guidance from the government and the CRTC.

What CASL covers

Canada's anti-spam legislation (CASL) (opens in a new tab) applies to commercial electronic messages — emails, texts, and similar messages that encourage participation in a commercial activity. For a med spa, that includes newsletters with offers, promotions for services, announcements of new treatments, membership invitations, and most "we miss you" messages.

In general, sending a commercial electronic message requires three things:

1. Consent from the recipient, either express or implied.
2. Identification of the sender — your clinic's name and contact information, including a mailing address.
3. An unsubscribe mechanism that's easy to use.

The CRTC's frequently asked questions about CASL (opens in a new tab) are a good plain-language reference for these requirements.

Express vs implied consent

Express consent

Express consent is when someone actively agrees to receive your marketing messages — for example, by ticking an unticked box on your booking form or newsletter sign-up that clearly says what they're agreeing to. It doesn't expire unless the person withdraws it, which makes it the best foundation for a clinic email list.

Implied consent

CASL also recognizes implied consent in certain situations, such as an existing business relationship. In broad terms, a client who bought a service from you has implied consent for a period after the purchase, and someone who made an enquiry has it for a shorter period. Implied consent expires, so it's a fragile basis for a long-term list. Check the exact periods and conditions in the official guidance, and use your contact with clients to ask for express consent.

Identification and unsubscribe requirements

Every commercial email should clearly identify your clinic and include a working unsubscribe link. In practice, that means:

• Your clinic's business name and a mailing address in the footer.
• At least one other way to contact you, such as a phone number, email address, or website.
• An unsubscribe link that works without logging in or calling the clinic.
• Unsubscribe requests processed promptly — CASL sets a maximum period, so check the guidance and aim to act immediately.

Keep transactional and marketing messages separate

Appointment confirmations and reminders are generally treated differently from promotional messages. That distinction disappears if you add offers to them. Keep reminders focused on the appointment, and send marketing through your consented list.

There's a privacy angle too. Avoid naming sensitive treatments in subject lines or text messages that may appear on a lock screen or shared device. Clients choose clinics partly on discretion.

Keep consent records you can rely on

If a complaint arises, the sender is generally expected to show that consent was obtained. Records should be part of your system, not an afterthought.

Collecting and storing this information also falls under privacy law. The Office of the Privacy Commissioner's overview of PIPEDA (opens in a new tab) explains the general principles; Ontario clinics handling personal health information should also consider PHIPA. Our guide to moving to digital intake and consent forms covers capturing consent at intake.

Building your med spa email list the right way

A smaller list of people who chose to hear from you is worth far more than a large list of contacts who never asked. Build consent into the moments when clients are already engaged with your clinic.

• Online booking: add an optional, unticked box inviting clients to receive clinic news and offers.
• Digital intake forms: include the same optional consent question, worded clearly and kept separate from treatment consent.
• Website sign-up: offer a newsletter with a short description of what subscribers will receive and how often.
• At the front desk: if a client asks to hear about events or new services, record their consent in their file at that moment, noting how it was given.
• Events: use a sign-up sheet or form with clear consent wording, not a bowl of business cards.

Tell people what to expect, then stick to it. If you promise a monthly newsletter, don't start sending weekly promotions. Clients who get what they signed up for are less likely to unsubscribe or mark your emails as spam.

Med spa email marketing ideas clients want to read

Compliance gets your emails delivered legally; usefulness gets them opened. The best clinic emails feel like helpful notes from a trusted practitioner.

• Welcome email for new subscribers: who you are, who treats clients, and how to book a consultation.
• Monthly or seasonal newsletter: skin care tips reviewed by your clinical lead, clinic news, and new team members.
• Treatment-timed rebooking messages: a friendly note when a client is typically due for their next visit — to clients with consent on file.
• Membership and package updates for clients who've shown interest.
• Referral program announcements explaining how clients can recommend friends.
• Event invitations for educational evenings.

How software can help

Managing consent by hand in a spreadsheet gets risky as your list grows. In MedClinora, marketing automation sends only to clients with recorded consent and includes an unsubscribe link, while appointment reminders stay separate. Client records keep consent details alongside each profile, and digital forms can capture consent at intake. See the features page for details.

Email marketing works well for med spas when it's built on clear consent and genuinely useful content. Get the consent wording right, keep good records, separate reminders from promotions, and send emails people want to open. For more growth ideas, read 25 medical spa marketing ideas that follow the rules and how to run a referral program for a medical spa.