Case Study 03 · Skincare & Cosmetics
From $42K to $74K a month: an email retention system.
Monthly Revenue
$42K$74K
Email Revenue Share
6%19%
Returning Customers
16%34%
01 · The Situation
They built an audience, then left it completely alone.
A mid-sized skincare brand reached out with a problem they could not quite name.
Traffic was growing. First-time conversion was decent. The product had real fans. But monthly revenue had been stuck at $42,000 for four months in a row and nobody could explain why.
They were spending money every month acquiring new customers. The customers arrived, bought once, and disappeared. Nobody had ever built a system to bring them back. For a consumable skincare brand where the average customer should repurchase every six weeks, that is an expensive leak to ignore.
Email was sitting at 6% of total monthly revenue. For a brand like this it should be closer to 25%.
"We send newsletters sometimes. Maybe once a month when we remember."
Founder
02 · The Diagnosis
A healthy list with nothing running behind it.
Audit Snapshot: Before
The list was healthy. Deliverability was fine. There was no technical problem to fix; they'd built an audience and left it completely alone after the first purchase.
03 · The Architecture
Seven flows that bring customers back.
The list was already there. I built the system that turns a first purchase into a relationship, flow by flow.
Build 01
Welcome Series: 4 emails over 7 days
Most skincare brands send one email with a 10% code and call it done, which trains buyers to wait for offers. I restructured it around trust first, offer second.
Email 1 (immediate): brand story, why the product exists and what makes it different.
Email 2 (day 2): education, how to use it correctly. Most returns happen because people use it wrong.
Email 3 (day 4): social proof, real customer results and before/after context, not stock photography.
Email 4 (day 7): soft offer, 10% off, 48-hour expiry. By now they trust the product; the discount closes, it doesn't convince.
Build 02
Abandoned Cart Flow: 3 emails
Recovering carts without training people to abandon for a discount.
Email 1 (1 hour): gentle reminder, no discount, just a nudge back.
Email 2 (24 hours): address the most common objection, sensitive-skin and ingredient questions.
Email 3 (72 hours): a small incentive, free shipping on this order only, no blanket discount that devalues the product.
Build 03
Post-Purchase Flow: 4 emails over 30 days
The most underbuilt flow in skincare. The sale isn't the finish line; it's the start of the repeat relationship.
Day 2: how to use the product correctly. Most customers guess, and guess wrong.
Day 7: what to expect in the first two weeks, realistic expectations before they decide it isn't working.
Day 21: results check-in + a complementary product that pairs with their purchase. No hard sell.
Day 30: reorder reminder, before they run out, not after. Timing matters more than copy.
Build 04
Replenishment Campaign
A single email triggered at 6 weeks, the average lifecycle of their hero SKU.
No discount. A well-timed reminder that lands when the product is actually running low.
The easiest revenue a consumable brand leaves on the table, and most never set it up.
Build 05
Win-Back Flow: 3 emails
For customers who hadn't purchased in 90 days or more.
Email 1: acknowledge the silence without being weird, "We noticed it's been a while."
Email 2: what's new, updates, reformulations, new additions. A reason to look again.
Email 3: final offer, 15% off, clear expiry. If it doesn't bring them back, better to know.
Build 06
Segmentation
Split the list into three core segments before sending anything: new (first purchase within 30 days), repeat (2+ purchases), and lapsed (90+ days).
Every broadcast went to the right segment, not the whole list.
The open-rate jump from 12% to 31% was partly the flows. Mostly it was the segmentation. Relevant emails get opened; generic blasts do not.
Build 07
A/B testing
Enough testing to stop guessing and start knowing.
Subject lines tested on every major flow; send times tested on broadcasts. Nothing elaborate.
04 · The Results
Ninety days later.
An extra $32K a month, from customers they'd already paid to acquire, without a dollar of new ad spend.
05 · The Takeaway
Nothing changed externally. What changed was what happened after the first purchase.
For a consumable skincare brand, repeat purchase is not a nice-to-have. It is the entire business model. A customer who buys once and gets silence after the confirmation email is a customer you paid to acquire and gave away for free.
The email system does not replace great products or good marketing. It captures the value that great products and good marketing already created. Without it that value just walks out the door.
Your Brand Next
Every result here started with a diagnosis. Yours can too.
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