Lapsed-Client Reactivation
Postcards for Med Spas

It depends on the treatment. Many spas treat an injectable client as lapsed once they're a month or two past their typical re-treatment window (Botox at 3–4 months, filler at 6–12), and a facial or laser client as lapsed after they skip their usual cadence or stall mid-package. You set the cutoff when you pull the list from your booking software; PostKnock mails to whoever is on your CSV.

Email and social specials hit a crowded inbox and a noisy feed your lapsed clients may have tuned out. A reactivation postcard physically arrives in the mailbox with a specific offer, and on Pro the client then drops into your Call Queue so your coordinator follows up by phone. PostKnock does not send marketing email — it's the postcard-plus-call one-two punch, not another notification.

Yes. Boulevard, Aesthetic Record, Mangomint, Vagaro, Zenoti, Mindbody and most other booking and EMR systems let you run a client report and export it as a CSV. Filter by last visit date to find lapsed clients, then import the CSV into PostKnock — the wizard auto-maps name, address, phone, and last-visit columns. PostKnock does not integrate directly with your booking software; you export the file and import it.

One clear offer with a reason to book now works best without cheapening the brand: a per-unit credit on injectables, a "finish your laser series" priority slot, a seasonal glow facial, or a "your member credits are waiting" nudge. Long-lapsed and one-and-done clients tend to respond to a higher-value reintroduction. Always check your state medical board's advertising rules — you write the offer copy, PostKnock prints and mails it.

Most spas run 3 to 4 waves over several weeks, mixing postcards with one or two call attempts for non-responders. PostKnock supports multi-touch wave sequences of up to 5 waves; you control the timing and which waves are postcards versus calls. A single touch rarely re-books — the follow-up call is what closes it.

You can mail postcards on the Free plan with no calls at all. The built-in Call Queue — which puts each lapsed client in front of your coordinator with a pre-loaded script after the card lands — is a Pro feature. For aesthetic reactivation specifically, the call is usually what turns interest into a booked appointment, so most spas use it.

Time them to your treatment cycles and the season. Send injectable reactivation a few weeks before a client's typical re-treatment window, push laser and chemical peels heading into fall and winter (away from sun exposure), and run "look refreshed" pushes ahead of the holidays, summer, and wedding season. With wave sequencing you can schedule the whole multi-touch sequence up front and let it run.

One-and-done clients — the bride, the event guest — respond best to a specific reintroduction that gives them a reason to make it a routine, like a returning-client treatment credit or a complimentary consult, paired with a follow-up call. Industry studies typically report direct-mail response in the low-single-digit-percent range on a house list, so expect a meaningful but modest share of a dormant list to come back.

You pay per piece from your wallet: from $1.05 per 4×6 card on the Free plan, dropping to $0.79 on Pro, with printing and USPS First-Class postage included. Pro is $99/mo (or $799/yr) and adds the Call Queue and multi-wave sequencing. No setup fees, no minimums, no contracts — you only pay for what you send.

PostKnock keeps treatment and health details off the postcard by default — the card carries an offer and a booking prompt, not a client's PHI — and your export only needs name, address, and contact info. If your spa operates under HIPAA, note we are HIPAA-aware: we don't sign Business Associate Agreements and we don't ask you to upload PHI. Review your own obligations and your state medical board's advertising rules, and see our healthcare compliance approach for details.