The Email Marketing Agency for Femtech Brands Where Trust Drives Retention
Femtech customers aren’t buying a product - they’re navigating fertility, hormones, or a cycle, and they reorder only from a brand that earns their trust. We’re a Klaviyo Elite Partner that builds email and SMS programs for femtech and hormonal-health brands: timed to the customer’s journey, written with sensitivity, and built to keep customers through a phase that changes month to month.
In Femtech, the Customer’s Needs Change Monthly. Most Programs Don’t.
Fertility and hormonal journeys aren’t static - and a generic, badly-timed, or tone-deaf email loses a customer who needed a brand to trust. When femtech brands stall, it’s almost always one of these.
Your emails ignore where she is in the journey.
Someone trying to conceive, someone managing a hormonal condition, and someone who reached their goal all get the same messaging - when the entire relationship depends on meeting her where she actually is.
The journey ends and so does the relationship.
Goals change - she conceives, transitions phases, or moves on. Without flows that adapt or pivot to the next need, you lose a customer you could have kept for years.
One-time buyers never convert to subscription.
Many femtech products are ongoing - supplements, tests, devices - but most revenue is single purchases because nothing moves her onto a recurring plan that fits the journey.
Failed payments quietly churn subscribers.
Cards decline on renewal, the retry logic barely fires, and recurring revenue you already earned disappears - losing customers mid-journey through a technical gap, not a real decision.
Compliance and sensitivity leave your copy flat.
Walking the line on health claims and a deeply personal topic, you end up with cautious, clinical email that doesn’t connect - instead of messaging that’s compliant and genuinely empathetic.
You treat a sensitive topic like a generic promo.
Discount blasts and pushy urgency feel wrong in a category built on trust - and erode the exact relationship that drives reorders and referrals.
The Klaviyo Program That Earns Trust and Keeps Her Through the Journey.
Femtech retention is about meeting the customer where she is, adapting as her needs change, and keeping the relationship through every phase. We build all three in Klaviyo.
Journey-Based Lifecycle
Flows and segmentation built around her actual stage - trying, managing, maintaining, or transitioning - so every message is timed and relevant, not generic.
Trust & Education
Onboarding and content that set expectations, educate with empathy, and build the confidence that turns a first purchase into a long-term relationship - written compliant and human.
Retain & Re-Engage
Convert one-time buyers to subscription, recover failed payments, and re-engage customers whose needs shift - pivoting them to the next relevant product instead of losing them when one phase ends.
Your Free Audit Is a Complete Gameplan, Not a Sales Call.
Most agencies sign you, then disappear for eight weeks to “audit” before they tell you anything. We do the opposite. Before you pay a cent — before you even decide — you get a full teardown of your account and the exact plan to fix it, built from your real numbers. Here’s what lands in your inbox.
A Full Unit Economics Analysis
We pull your real numbers from Shopify and Klaviyo — margins, breakeven, retention order by order, and the most you can spend to acquire a customer without losing money. You see exactly where the business makes money and where it leaks.
Every Growth Lever, Mapped
The full set of levers that move LTV — converting one-time buyers to subscription, cutting voluntary and failed-payment churn, reactivating cancellers, lifting subscription AOV. You see which ones actually move the needle.
A Prioritized Lifecycle Scorecard
A flow-by-flow benchmark of your current program — what’s working, what’s broken, what’s missing — scored against brands like yours and ranked by revenue impact. A number, and a reason.
The Complete Gameplan
One prioritized roadmap — which flows to fix, kill, or build, which subscriber segments to split out, and which subscription levers to pull, in order, with targets and trajectory. Not a 40-page deck. A plan you can start tomorrow.
All built from your live Klaviyo, Shopify, and subscription data — never a template.
Subject to availabilityNamed Clients. Real Numbers.
The Founder Does the Diagnosis
George Kapernaros founded YOCTO to do one thing better than anyone else: turn DTC retention into a measurable system. He sits on the Klaviyo Partner Advisory Council, the Forbes Business Council, and the Fast Company Executive Board — and he personally runs the audit on every account before a single deliverable is complete.
The Videos Other Agencies Use to Train Their Staff
Femtech Email Marketing, Answered.
Bring Us Your Hardest Retention Problem.
We take on a fraction of the brands that apply — the ones we know we can move the needle for.