Draft

Charlotte Bio: a 6 Hour-Long Onsite Campaign Brings 6x Increase in Revenue

About Charlotte Bio

Founded in 2015, Charlotte Bio is a fast-growing French cosmetics brand committed to creating organic, vegan, and cruelty-free beauty products. From its inception, the brand has championed eco-conscious values—long before they became mainstream.

With affordable prices (the most expensive product costs just €18, or about $20), a clean online experience, and an active community, Charlotte Bio is on a mission to make organic beauty accessible to all.

Key results (six hours)

17%of monthly revenue
made within six hours of the flash sale
6Xincrease in revenue
generated by flash sale, compared to a usual day
700+discounts redeemed
through one mobile popup sale announcement

The challenge

Charlotte Bio wanted to:

Create a revenue spike during a rare flash sale
Engage loyal and first-time customers with a time-sensitive promotion
Make the onsite experience smooth and conversion-focused

“The campaign generated six times more customers in six hours than we get on a full regular day, which we really did not expect.”

Marilou Bertrand, Director of Digital Marketing, Charlotte Bio

The winning strategy

Charlotte Bio launched a 6-hour flash sale with a 40% discount across all non-discounted products. Using Wisepops, they created two complementary campaigns that worked together to boost visibility and conversions.

1. Launching with targeted timing

The campaign was launched in two phases:

6:00 PM — popup and bar visible to returning customers only
7:00 PM — sale made visible to all website visitors

The offer expired at midnight, creating a tight six-hour window to drive urgency and action.

To build anticipation, Charlotte Bio also sent email announcements at 6:00 PM and followed up with paid ads and social posts at 7:00 PM.

2. Reaching all visitors with two onsite campaigns

Charlotte Bio combined a popup with a website bar to ensure every visitor saw the offer—even those who closed the first message.

Popup: Appeared immediately, offering a clickable button that applied the discount automatically at checkout.
Bar: Only shown to visitors who didn’t use the popup, with a countdown timer to emphasize urgency.

3. Optimizing for mobile experience

Two separate versions of the popup were used: one for desktop and one for mobile.

The desktop popup generated 137 code applications
The mobile popup outperformed all other campaigns with 700+ applications

4. Reinforcing urgency with a countdown bar

The website bar featured a countdown showing how long the sale would last. This was crucial for shoppers who returned later or hesitated during their first visit.

“We added the bar with the countdown to reinforce the sense of urgency for those who did not apply the code in the popup, which was key to success.”

Marilou Bertrand, Director of Digital Marketing, Charlotte Bio

Results

Campaign performance breakdown:

Desktop popup: 47% CTA and 137 code applications
Mobile popup: Top performer with 700+ redemptions
Website bar: Added 99 additional code redemptions

Overall impact:

17% of monthly revenue in just six hours
Conversion rates far exceeded daily averages
No impact on average order value—customers bought more than typically

“The campaign did not affect the average shopping cart value, as the customers bought more than usual.”

Marilou Bertrand, Director of Digital Marketing, Charlotte Bio

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You can also watch the full interview of Marilou about her experience with this campaign (in French):

Pawel Lawrowski

Pawel is the Head of Growth at Wisepops and an expert in lead generation, popups, ecommerce, and onsite marketing.

With over a decade of experience in digital marketing and ecommerce, he has both build marketing teams from scratch and led strategic business growth projects.

Pawel has worked with countless online businesses on marketing strategies and is now sharing his knowledge. Previously, he was an head of growth at Tidio, where his responsibilities ranged from creating marketing materials to building acquisition channels.

Education

West Pomeranian University of Technology

Certifications