$513K Managed.
$984K Returned.
Every Month, Month After Month.

About Dr Vitamins Solutions

Dr Vitamins Solutions is a health and wellness brand built around high-quality nutritional supplements. With a growing product catalogue covering vitamins, minerals, and speciality health formulas, the brand serves health-conscious consumers who take their supplementation seriously.

They had built strong product quality and loyal repeat customers on Amazon. What they hadn't built was a reliable external traffic channel that could drive qualified buyers directly to their Amazon product detail pages, and do it at a positive ROAS. That's where we came in.

The goal was specific: use Google Search to drive external traffic to Dr Vitamins' Amazon listings, generate purchases, and maintain a minimum 1.5x ROAS target. Building this kind of Amazon external traffic engine through Google Ads requires a very different setup to a standard e-commerce campaign, and that precision made all the difference.

The Problem

When Dr Vitamins Solutions approached Growth Mentor Media, their Google Ads account had the symptoms every founder dreads: spend going out, results coming back inconsistently, and no clear picture of which campaigns were actually generating profitable revenue.

Two problems were compounding each other:

• Poor campaign structure: Budget was spread across too many overlapping keywords and match types, creating internal bidding competition and inflating cost-per-click without improving results. Campaigns hadn't been structured with a clear funnel logic, awareness spend was mixed with purchase-intent spend in a way that made optimisation nearly impossible.
• High spend, low return: The account was spending steadily but consistently delivering ROAS below the 1.5x minimum the business needed to stay profitable on paid. Every month felt like a gamble, some weeks worked, some didn't, and nobody could explain why.

The bigger risk was inaction. In the supplement space, Google Search is where buyers with high purchase intent go, and every month the account was underperforming, competitors were capturing those customers instead.

Our Approach

We didn't tweak the existing account. We rebuilt it from the ground up with a structure designed to scale, and then we scaled it, month by month, for 15 months straight.

1. Full Account Audit and Structural Rebuild

Before spending a single dollar differently, we audited every campaign, ad group, and keyword in the account. We identified where the budget was being cannibalised, where conversion intent was low, and where there was genuine untapped opportunity in their product categories. The old structure was retired. A clean, segmented campaign architecture took its place, separating branded terms, high-intent product searches, and competitor conquest into distinct campaigns with independent budgets and bid strategies.

2. Search Campaign Restructure by Purchase Intent

Dr Vitamins' customers don't all search the same way. Someone searching "vitamin D3 5000 IU" is further down the funnel than someone searching "best vitamins for immune support." We built separate campaigns targeting each intent tier, with tighter match types, dedicated ad copy, and landing pages matched to the query intent. This alone significantly improved Quality Scores and drove down CPCs within the first 60 days.

3. Google Search to Amazon PDP, Built for External Traffic

Most Google Ads campaigns point to a website. This one pointed to Amazon. Driving external traffic to an Amazon product detail page requires specific structural decisions: tight keyword intent matching so only high-purchase-intent traffic clicks through, ad copy written to qualify the buyer before they land on Amazon, and bid strategies calibrated around Amazon's attribution window rather than standard last-click conversion models.

We built the campaign architecture specifically for this flow. Every keyword, every ad group, and every bidding decision was made with the Amazon conversion funnel in mind, ensuring budget was spent on buyers who were ready to purchase, not researchers who would bounce.

4. Negative Keyword Management as an Ongoing Priority

In a broad category like health supplements, irrelevant search traffic is a constant drain. We built out an aggressive negative keyword programme from day one, blocking off-intent queries, unrelated conditions, and price-sensitive searches that would never convert at an acceptable margin. This was reviewed and updated every two weeks as new search term data came in.

5. Ad Copy Testing Tied to Conversion Data

We ran continuous A/B testing on headlines and descriptions, not for creative preference, but for conversion rate impact. Every variant was evaluated against actual conversion data, not just CTR. This iterative process meant the ad copy in month 15 was significantly more effective than what we launched with in month 1, with a measurably lower cost-per-conversion across core product categories.

6. Budget Scaling Tied to Performance Signals

We didn't simply spend more each month. Budget increases were made deliberately, only when conversion data supported them, and only in the campaigns that were demonstrably profitable. This disciplined approach meant the account's average ROAS stayed above target even as total spend grew from under $30K/month to over $40K/month at peak.

The Results

After 15 consecutive months of structured, data-led Google Search management, Dr Vitamins Solutions had a paid acquisition channel that performed as reliably as their best-selling products.

Most importantly: Dr Vitamins never had a down month. Every month we managed the account, revenue grew. That kind of consistency is not an accident, it is the product of a structured account, disciplined budget management, and a relentless focus on the metrics that actually matter to the business.

Our Responsibilities