How Thundr Digital rebuilt Yuu Beauty’s email marketing in Klaviyo, turning untracked Phorest sends into a segmented campaign programme that now accounts for 21% of the clinic’s online booking revenue.
Appointments booked online and attributed to Yuu Beauty’s emails in Klaviyo since sending began in early 2026.
Email now drives around one in every five pounds booked online, from a channel that previously had no measurable impact.
Segmented campaigns and automated flows sent to Yuu Beauty’s client base through Klaviyo.
A consistent sending programme that clients welcome, with complaints well below inbox provider guidance.
Yuu Beauty is an established beauty and skin clinic in Edinburgh. Before moving to Klaviyo, emails were sent through Phorest with no proper campaign level tracking and no audience segmentation. The biggest opportunity was not just improving campaign performance. It was giving the business clear visibility over what email was actually driving.
Yuu Beauty already had a loyal client base and strong treatment offering. The missing piece was a proper email marketing setup that could show what each campaign was doing.
By moving email into Klaviyo, Thundr Digital created a clearer structure for segmentation, campaign planning, booking tracking and revenue attribution.
Every online appointment booked from an email is now tracked, so Yuu Beauty can see which emails bring clients back and how much revenue the channel is generating.
Yuu Beauty had an existing customer base and regular email activity, but the channel was difficult to measure. Campaigns were being sent through Phorest without clear campaign level open, click, booking or revenue tracking.
By moving to Klaviyo, Thundr Digital could create segmented audiences, plan more relevant campaigns and track the commercial impact of each send, from opens and clicks through to online bookings and revenue.
The key shift was moving Yuu from email activity that was hard to evaluate to a programme where every send can be reviewed, improved and tied back to real bookings.
Emails were sent through Phorest with no campaign level open, click, booking or revenue tracking, and no audience segmentation. The impact of email on the business was effectively invisible.
Yuu now has a segmented Klaviyo programme with every send tracked through to online bookings. Email has generated £15.1K in attributed online booking revenue, 21% of the clinic’s total online bookings.
The strategy focused on making email a measurable channel, not just a broadcast tool. As an email marketing agency, Thundr Digital rebuilt Yuu Beauty’s setup around segmentation, treatment led messaging and clear revenue tracking.
Moved email from Phorest to Klaviyo to support proper tracking, segmentation and reporting.
Built engaged client, treatment based and service based segments for more relevant targeting.
A consistent calendar around HydraFacial, skin treatments, laser, gifting and seasonal offers, with subject lines and CTAs optimised for bookings.
A welcome flow plus post-appointment flows tailored to seven treatment categories, from facials and brows to spa and men’s treatments.
Online appointment bookings tracked back to email, so revenue is measurable for the first time.
Of £70.2K in online booking revenue over the reporting period, £15.1K was attributed to email in Klaviyo, almost entirely from the monthly campaign programme.
Online bookings only. In-salon bookings and rebookings are not attributed, so email’s full contribution is likely higher than shown.
Revenue is the headline, but list health matters just as much for a clinic emailing the same loyal clients every month.
Figures cover all Klaviyo email activity over the reporting period. Individual campaign revenue is tracked in Klaviyo but not shown publicly.
Yuu Beauty moved from email that was impossible to measure to a Klaviyo programme that has generated £15.1K in attributed online bookings, around 21% of the clinic’s online booking revenue, with a clean, engaged list.
With campaigns proven, the focus is now on the automated side: building out the post-appointment flows so clients are brought back for their next treatment without relying on a monthly send.
This is why Thundr Digital’s email marketing approach focuses on segmentation, reporting, revenue attribution and campaigns that encourage clients to book.
If your email marketing is being sent without clear tracking, segmentation or revenue visibility, Thundr Digital can help you turn it into a measurable booking channel.
Get a free email auditMethodology: Figures taken from Klaviyo’s Business Review dashboard on 12 October 2026, covering 1 October 2025 to 30 September 2026 (sending began in early 2026, following migration from Phorest). Revenue is based on the Online Appointment Booked metric and attributed to email using the account’s Klaviyo attribution settings. Only online bookings are counted; in-salon bookings and rebookings are not included. Totals include campaigns and flows, with almost all attributed revenue coming from campaigns as automated flows are at an early stage. Open rates can be inflated by automatic opens such as Apple Mail Privacy Protection, so booking revenue is the primary performance measure. Benchmark comparison is Klaviyo’s campaign benchmark for September 2026. Performance varies by campaign, audience and season.