Mindbloom · Mental health and wellness · Influencer marketing & paid social · 2026
How Mindbloom cut CAC 25% with real patient testimony
In treatment categories, credibility is the conversion lever. Nothing else moves the number as much.
25%
CAC reduction
alongside a 7-figure media buy
The results, up top — every number is in the strip below
25%
CAC reduction
against previous creative
40%
increase in referral sign-ups
second-order effect
15+
creators through the programme
testimony, not endorsement
$1M+
whitelisting & dark posting
seven-figure amplification
Sensitive category
credibility-led creative
trust before scale
01 — The challenge
A sensitive category where advertising claims carry little weight.
Mindbloom operates in mental health, where prospective clients are cautious and sceptical by default, and where brand-voice advertising struggles to establish trust.
A seven-figure media budget amplifies whatever creative it is given — including creative people do not believe.
“People considering this are frightened and doing their own research. They do not want a brand telling them it works. They want to hear it from someone who did it.”
So micro-influencers and real testimony were put in front of the media budget.
02 — Our approach
Authentic testimonials, then whitelisting and dark posting at scale.
Fifteen-plus creators went through the treatment programme themselves and spoke from that experience, which is the only version of this creative that holds up in a sceptical category.
Whitelisting and dark posting then put that testimony behind the seven-figure buy, cutting customer acquisition cost 25% and lifting referral sign-ups 40%.
03 — What we did
What the campaign actually consisted of.
The working parts behind the Mindbloom numbers above.
15+ creators in-programme
Testimony, not endorsement
Creators went through the treatment before speaking about it.
Creator asset grid
Whitelisting at scale
Credible creative, paid reach
Creator testimony ran as paid from creator handles across a seven-figure buy.
Creative from the campaign
CAC down 25%
Trust as an efficiency lever
Customer acquisition cost fell 25% once testimony replaced brand voice.
Reported campaign metrics
Referrals up 40%
The word-of-mouth effect
Referral sign-ups rose 40%, compounding the paid result.
Reported referral metrics
The stack we ran it on
Meta Ads Manager
Paid social
TikTok Ads Manager
Paid social
Creator sourcing
Casting
Spark Ads & whitelisting
Amplification
Frame.io
Creative review
Canva
Creative
GA4
Analytics
Looker Studio
Dashboards
“Web Tonic did in six weeks what our last two agencies couldn't in a year — and for the first time we could see every dollar of it”
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