Generating an initial uplift is one thing. Continuing to grow an established Amazon account over several years, whilst also improving advertising efficiency, is a different, longer-term challenge. Chia Charge's story shows what happens when we get both right.
Where We Started
Our original Chia Charge case study covers the first three months of the Amazon partnership, during which monthly sales increased by 102%. That kind of number gets attention. The harder question is what comes next.
More than two years on, we wanted to revisit the account and show how that early momentum turned into sustained growth, not a short-term spike.
Growth That Doesn't Plateau
As the account matured, the focus shifted. It was no longer about proving the concept. It was about finding sustainable opportunities for additional growth whilst protecting and improving ROAS at a bigger scale, where every extra percentage point is harder to earn.
B2 has continued to provide ongoing Amazon Marketplace Management for Chia Charge, combining Amazon PPC management and optimisation with wider marketplace strategy, product launches, listing optimisation, and recommendations for new products and bundles.
How We Kept the Account Growing
We've continuously developed Chia Charge's Amazon strategy as the account has grown. In practice, that has meant:
- Ongoing keyword harvesting and negative targeting, so spend keeps working as hard as it did on day one.
- Bid and placement optimisation, refined against live performance data rather than set and left.
- Campaign restructuring, evolving Sponsored Products, Sponsored Brands and Sponsored Display activity as the account's needs changed.
- Product and bundle strategy, supporting new launches, listing optimisation and identifying opportunities for new products and bundles to drive additional sales and profitability.
The relationship has also grown beyond advertising management. B2 increasingly supports Chia Charge with wider Amazon strategy, marketplace research and product ideas, the kind of input you'd expect from an internal team member, not an external agency.
Every decision has been driven by ongoing analysis of ROAS, sales, search-term performance, campaign structure, placements and individual product performance. Rather than working to a fixed advertising budget, we've increased investment wherever the data showed a profitable opportunity to generate additional sales.
Chia Charge set a clear target: at least 50% year-on-year growth, whilst keeping advertising commercially efficient as the account scales. The results speak for themselves, and so does the warehouse move.
Growth, Without the ROAS Trade-Off
Comparing July 2026 with July 2024:
- 75% increase in Amazon sales
- 47% increase in advertising spend
- 25% improvement in ROAS
The initial impact was rapid, with sales increasing by 102% within the first few months of management. The more significant result now is that this wasn't a short-term spike. More than two years later, Chia Charge's Amazon business has continued to grow from the higher baseline that early period established.
Sales are up 75%. ROAS is up 25%. Growth hasn't come at the expense of efficiency, it's come alongside it.
In the Client's Words
"They doubled our six-figure Amazon business within 12 months of starting, and they've maintained and bettered the ROAS they thought they were going to achieve. They've got a real understanding of the marketplace. They've generated some great product ideas and some good ideas for bundles, which have been really profitable for us and really helped with our sales growth. It really feels like they're part of our internal team now. We can't imagine running our Amazon business without them."
Tim Taylor, Founder of Chia Charge
What This Proves
Ongoing, hands-on Amazon management beats treating PPC as a short-term exercise. Campaign structures and strategies need to evolve as an account grows, which means continually reviewing search terms, bids, placements, targeting and campaign structure, whilst also looking beyond PPC for opportunities across listings, new products and bundles.
It's also a longer-term proof point for our No ROAS, No Fee Growth Guarantee. Chia Charge received a full refund when the agreed ROAS target wasn't hit in month one. That's a real result worth disclosing honestly, not a footnote. The data gathered during that period informed the optimisation that followed, and what began as a risk-free three-month trial has developed into a partnership lasting more than two years.
Two years on from our original case study, Chia Charge's Amazon sales have increased by a further 75%, whilst ROAS has improved by 25%.
Chia Charge isn't a one off. We take the same approach with every Amazon account we manage: we'll improve performance or you don't pay for that month. Get in touch and let's see what's possible for yours.
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