Sales volume wasn't enough.
Hydros had a product customers liked, but its Amazon business wasn't profitable. Advertising absorbed too much revenue, the product pages weren't converting well enough, and sales depended too heavily on paid traffic.
The goal was to improve the economics of the account. That meant looking at the product pages and the advertising together: what happened after a shopper clicked, where the budget went, and how much of the business could grow beyond paid campaigns.
What is TACoS? Total Advertising Cost of Sale is advertising spend divided by total sales revenue. It shows how much of the overall business goes toward ads. It is useful context for profitability, alongside product costs, fees, fulfillment, and other expenses.
Better product pages. More focused advertising.
We worked on the two parts of the purchase journey together. The listings needed to explain the products more effectively, while the campaigns needed to concentrate investment where it was doing useful work.
Clearer titles and bullets
Rewrote product titles and bullet points to make the listings more compelling and relevant to shopper searches. The team also worked through the difficulty of getting title changes implemented on Amazon.
Stronger product descriptions
Refined the brand story through product setup data and descriptions. Hydros was happy with its existing visuals, so the listing work focused on words and content structure.
Simpler campaigns
Trimmed underperforming campaigns and targets, reducing complexity and concentrating budget on the placements that converted more effectively.
More attention to organic sales
Used listing improvements to support search discoverability and reduce the account's long-term reliance on advertising. Paid performance was evaluated in the context of the whole Amazon business.
“Our goal was to significantly reduce ad spend without reducing overall volume.”
Lower ad spend, with stronger conversion.
Over seven months, advertising spend fell 80% without a corresponding drop in gross sales volume, according to the original case study. TACoS fell 82%, while organic sales grew 62%.
The remaining advertising also worked more efficiently: return on ad spend improved 32%. The reported conversion-rate increase was 74%, achieved through copy and content changes while retaining the existing visual design.
| Measure | Reported change |
|---|---|
| TACoS | 82% lower |
| Advertising spend | 80% lower |
| Return on ad spend | 32% higher |
| Product-page conversion rate | 74% higher |
| Organic sales | 62% higher |
The objective was to reduce advertising dependence while preserving sales volume. These measures describe different parts of that change; they should not be added together.
About these numbers
Figures are reproduced from Parker-Lambert's published Hydros case study. They are reported relative changes over a seven-month engagement. A 74% increase in conversion rate does not mean a 74% final conversion rate.
The source does not publish calendar dates, starting and ending dollar amounts, absolute conversion rates, or a month-by-month series. No such values have been inferred here. It describes improved profitability but does not disclose a profit figure.
The work combined listing changes and campaign restructuring. This account-level before-and-after comparison does not isolate the contribution of each individual change.
Look beyond the advertising dashboard.
A campaign can only do so much if the product page doesn't finish the job.
Hydros's experience shows why we examine the whole account. Better content can help shoppers make a decision. More selective advertising can reduce wasted spend. A stronger organic contribution can make the business less dependent on buying every visit.
The right plan starts with understanding how those pieces work together, then prioritizing the changes that serve the brand's goals.
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