How Onsen Secret Tripled Amazon Profit While Growing Sales by $95,934

About the brand

Onsen Secret is a premium skincare brand rooted in the healing tradition of Japanese hot springs. Their mineral-rich formulas deliver spa-grade hydration, rejuvenation, and anti-aging benefits, bringing the restorative power of nature into everyday routines.

Loved by customers for their purity and proven results, Onsen Secret bridges ancient wellness practices with modern skincare innovation, making luxury treatments accessible at home.

The Problem

Onsen Secret had all the fundamentals in place, strong conversion rates, and steady traffic. But growth had stalled.

• Every attempt to scale led to shrinking profitability.
• Rising ad costs made expansion increasingly risky.
• Without a clear strategy, pushing for growth meant gambling with margins.

To move forward, Onsen Secret needed a smarter, more efficient path to scale profitably.

The Solution

We helped Onsen Secret scale profitably by working with the data, not against it. Our strategy focused on efficiency, precision, and long-term growth:

1. Focus on winners:
Instead of spreading budget thin across underperformers, we concentrated PPC spend on proven high-converters. This accelerated growth with lower risk and built a scalable, profitable foundation

2. Shifted from ACOS to TACoS:
ACOS alone was hiding inefficiencies. By transitioning to TACoS (Total Advertising Cost of Sales), we gained a complete view of ad performance and its impact on profit. Enabling smarter, more sustainable spend decisions.

3. Improve listings before scaling ads:
We optimized listing content first (titles, bullets, images, and A+ content) to lift conversion rates. With higher-performing listings in place, we then targeted more competitive keywords aggressively. Amazon's algorithm rewarded the improved performance with higher organic rankings, multiplying both paid and organic visibility.

4. Strategic product launches & global expansion:
Beyond existing products, we built a data-backed launch playbook for new SKUs — tailored around keyword demand, revenue potential, and category trends. Several new products became top sellers quickly, while expansion into international Amazon marketplaces unlocked new revenue streams and positioned Onsen Secret as a global premium skincare brand.

The Results

By realigning spend around efficiency and high-performing products, Onsen Secret unlocked profitable growth on Amazon, turning what was once a flat performance curve into sustained upward momentum.

We added $95,934 in monthly Amazon revenue while tripling profit.

• Successfully launched multiple new products that quickly became top sellers and drove profitable growth.
• Improved advertising efficiency by shifting from ROAS to TACoS tracking, eliminating wasted spend.
• Top-converting listings now dominate organic search rankings, driving compounding growth from both paid and organic channels.

Through data-led prioritization and listing-first optimization, Onsen Secret achieved profitable scale, growing faster without gambling margins.