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A 2-wave postcard plus call sequence built around treatment intervals. Rebook clients on schedule so results compound and lifetime value grows.
Most med spa clients don't pre-book their next treatment. They mean to call when results start to fade — and then a competing spa's Instagram ad gets there first. Time-based recall puts your spa back on the calendar before they shop around.
2 waves over 4 weeks, 60-day rest cycle aligned to treatment intervals. Mail Wave 1 about a week before each client's expected next-treatment date.
Headline: "Time For Your Next Treatment" · Offer: Returning client rate + complimentary skin assessment.
Aspirational and polished — the visual aesthetic matches your spa, not a discount mailer. The lead is consistency: "Keep your results looking their best." The Wave 1 call lands 10–14 days after delivery, with a script that references the client's last treatment: "Based on your last visit, you're right around the time we usually recommend a follow-up." That single line of personalization lifts booking rates by 30%+ vs generic recall scripts.
Headline: "Welcome Back — Special Offer Inside" · Offer: 15% off your next treatment + complimentary consultation.
21 days after Wave 1, only to non-responders. Stronger offer (15% off + complimentary consultation) and a deadline. The aesthetic stays premium — med spa clients are turned off by generic "discount" messaging. Position the offer as exclusive for returning clients, not a public sale. The Wave 2 call references the offer directly: "I wanted to follow up about the returning client offer." After Wave 2 the client rests for 60 days before re-entering the recall cycle.
Both waves, call timing, and copy direction are pre-configured. You set the brand, the offer language, and the signature treatment.
From AestheticRecord, Boulevard, Mindbody, Vagaro, Symplast, or Nextech: export clients with their last treatment date and treatment type. CSV upload, auto-mapped columns.
Choose when each client should receive Wave 1 based on treatment type — 3 months for Botox, 9–12 months for filler, 4–6 weeks for facials. PostKnock mails each card at the right point in each client's individual cycle.
Pre-loaded scripts referencing the last treatment. Booked clients drop out of the sequence automatically.
A typical med spa has 200–500 clients overdue for their next treatment. Here's the math on a 300-client run:
30:1 ROI on the first cycle — and rebooked clients typically continue on their natural treatment cadence, multiplying lifetime value.
Run your own numbers in the ROI calculator.
Free to explore — you only pay when you're ready to send. 30-day money-back guarantee.
Single-wave postcard campaigns · Unlimited contacts · From $1.05/piece
Everything in Free + calls, sequencing · From $0.79/piece
Per-piece pricing includes printing + USPS First-Class postage. No hidden fees.
Four design styles, all themed for your med spa and ready to customize. Same offer, same call follow-up — just pick the look that fits your brand.
Bold
Photo
Minimal
Gradient
Front Detail
Back (Address Side)
PostKnock recall campaigns also work for
Treatment recall is the highest-ROI med spa play, but PostKnock also runs seasonal promo campaigns and new client acquisition. See the full lineup on the med spa hub.
For Botox: mail Wave 1 at the 11-week mark (about a week before the typical 3-month rebooking window). The card lands while the client is starting to notice softening results — the highest-intent moment to rebook. For filler: mail at the 9-month mark. For laser series: mail 4–6 weeks after the previous treatment. PostKnock's recall window field lets you set this per treatment type so each client gets mailed at the right moment in their personal cycle.
Wave 1 should NOT lead with a discount — med spa clients are aspirational, and discount-heavy messaging cheapens the brand. Lead with consistency ("keep your results looking their best") plus a complimentary skin assessment. Save percentage discounts for Wave 2 (15% off plus complimentary consultation). Frame the offer as exclusive for returning clients, never as a public sale.
AestheticRecord: Reports → Patient Reports → export client list with last treatment date and treatment type. Boulevard: Clients → Filter by Last Visit Date → export. Mindbody: Reports → Client Lists → "Inactive Clients" or filter by Last Service Date. Vagaro and Symplast have similar export flows. PostKnock's import wizard auto-detects each column.
Reference treatment categories on the postcard ("It's time for your next treatment") rather than naming specific drugs or services. The follow-up call is where you reference the specific treatment based on the client's record — that's a private conversation, not printed mail. Naming Botox or filler on a postcard the mail carrier and the client's neighbors might glance at is a privacy step too far.
Med spa email recall has 18–22% open rates and 1–2% click-throughs — most clients filter beauty-brand emails into a tab they never open. A postcard has a 100% open rate (no envelope), and the call follow-up adds a personal layer email can't replicate. PostKnock clients see 4–6x the rebooking rate from postcard plus call sequences vs email-only recall.
Stop hoping clients self-rebook. Run the treatment recall sequence aligned to Botox and filler cycles.
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1 ANA (Association of National Advertisers), Response Rate Report 2023, published February 2024.