Supplements · Nutrition · Functional foods
Brand operations firm for Amazon USA.
We run accounts that already sell and open the ones that don’t exist yet, for a limited number of supplement, nutrition and functional food brands.
Choose where you come in
We log what your direct competitors did: price, coupons, reviews, Buy Box, who came in and who left.
We look for the cause before touching a bid. A drop in sales can be the price next door and not the campaign.
We go back to every decision we made to confirm it worked or reverse it. It stays on record, with the reason behind it.
This certification validates our Amazon Ads capability. But that's not our main argument.
Our value lies in connecting advertising, listings, account health and operations into a single decision-making system. Every variable affects the others, and we manage them as a whole.
A single market. One complete operation.
We specialize in Amazon United States. We concentrate our experience, processes and operational capacity in a single market to support brands that want to enter, organize or grow their business on the marketplace.
A category where every detail matters
Selling supplements and food on Amazon demands far more than publishing a product and turning on advertising. Documentation, labeling, claims, content, inventory and profitability all have to work within a single strategy.
Custos connects those areas so the brand can enter the market on solid ground and operate with greater control.
We manage the areas that make your business work
Amazon USA agency — Commercial direction, advertising, profitability, inventory and Seller Central operations for supplement brands in Latin America and Spain
We don't execute isolated tasks. We connect strategy, sales, advertising, profitability, inventory and operations within a single decision-making system.
We define objectives, priorities, budgets and growth plans. We coordinate the decisions required for Amazon to work as a business unit of your company.
We manage positioning, catalog, content, pricing, advertising, promotions and launches to increase the brand's visibility and conversion.
We analyze sales, margins, fees, advertising investment and per-product profitability to make decisions based on the total result of the business.
We plan replenishments, control stock levels and coordinate the logistics decisions needed to avoid stockouts, overstock and unnecessary costs.
We oversee Seller Central, account health, incidents, compliance, catalog and brand protection to keep the operation stable.
You’re looking at the path for
The account already exists. We audit it, fix it, and keep operating.
Management starts with a full audit of the account. That’s where the strategy, the timeline and the order of the fixes come from. Optional phases are quoted only when the account actually calls for them.
Account management
Monthly feeBefore we touch anything, we go through the whole account: irregularities, inherited problems, account health, catalog, advertising, inventory and profitability per product. The audit isn’t billed separately, it’s how the engagement begins.
Everything the audit flags gets fixed first, in the order it hurts the business. Only once the account is in order does pushing for growth make sense.
Inventory, logistics, advertising, content, pricing, support and ongoing oversight of finances and compliance, against a strategy and timeline already agreed. Every decision is recorded with its reason and reviewed afterward.
Visual production
OptionalThis builds how the offer looks inside the marketplace: product and lifestyle photography, A+ content, video and Brand Store. It only comes in if the audit shows current content is holding conversion back.
Brand website
OptionalDesign and development of the brand’s own site, consistent with its visual identity. It’s the base for winning customers off Amazon and building an audience you own.
External marketing and AI
Optional · in parallelContent strategy for the brand’s social channels and creator selection based on audience fit, to drive external traffic to the listing. Products are also prepared to surface in the searches and recommendations that artificial intelligence now answers.
From product to an active operation in the U.S. market
We support your brand from validating the opportunity through launch and ongoing management, with a clear plan, defined responsibilities and a focus on profitability.
Project Validation
We analyze the product, category, competition and costs to assess its commercial viability in the United States.
Product Preparation
We review the brand, labeling, documentation, manufacturing and requirements needed before launch.
Operational Setup
We set up Seller Central, the catalog, logistics, inventory and everything needed to start operating.
Building Commercial Presence
We develop positioning, listings, visual content, pricing strategy and the advertising plan.
Launch
We activate the operation, run advertising and monitor the first sales to gather data and adjust the strategy.
Management and Growth
We manage sales, advertising, inventory and profitability to improve performance and build a sustainable operation.
We are the operating team of your Amazon business — Amazon USA agency for supplement brands in Latin America and Spain
Custos does not limit itself to managing campaigns or listings. We take on the integral coordination of the channel, connecting the commercial, financial and operational decisions that determine its performance.
Each brand works directly with a senior operator who knows its numbers, priorities and challenges. We deliberately limit how many operations we manage in order to keep judgment close to execution.
We work on a fixed monthly retainer. We don't charge commission on advertising spend, because that model rewards spending more, not deciding better. Each operator manages a limited number of accounts, that keeps judgment close to execution, and execution close to your numbers.
Real senior attention, with no structure based on junior delegation.
Our incentives are aligned with your profitability, not your advertising budget.
You always work with the same senior operator, who knows your numbers and your priorities.
CUSTOS vs a traditional provider
| Criterion | CUSTOS | Traditional provider |
|---|---|---|
| Focus | Complete business unit | Separate services and tasks |
| Management | Commercial, finance and operations | A specific area |
| Decisions | Based on total profitability | Based on isolated metrics |
| Accountability | Direct senior operator | Account manager and fragmented team |
| Inventory | Integrated with sales and advertising | Managed separately |
| Reporting | Analysis, conclusions and decisions | Metrics dashboard |
| Fees | Fixed monthly fee | Commission or individual services |
Let's find out whether your brand and Custos are a fit
We work with brand owners in supplements, sports nutrition, functional foods and functional beverages who want to launch, organize or grow their operation on Amazon United States.
We also support pet supplement brands looking to develop this channel strategically.
Tell us about your brand, your products and the current stage of the project. We'll assess how ready it is and whether our operating model is the right fit for you.
We work best with those who:
- Own their brand, or have decided to build one, with capital allocated.
- Sell supplements for people or pets, sports nutrition, functional foods or functional beverages.
- Want to start or grow specifically on Amazon United States.
- See Amazon as a long-term strategic channel.
- Are ready to invest in inventory, advertising, content and operations.
- Can work with a planning horizon of 6 to 12 months.
- Want the channel managed end to end, not isolated tasks executed.
We normally don't work with:
- Resellers or distributors of third-party brands.
- Online or retail arbitrage models.
- Companies looking for immediate or guaranteed results.
- Brands treating Amazon as a temporary test, with no investment or continuity.
- Clients who only need a one-off task, such as editing a listing or running a single campaign.
Request an initial assessment
We get to know your brand, review the overall state of the project and assess whether there's a fit with the way we work.
This first assessment lets us understand the product, the state of the operation, the company's goals and the main challenges.
When a project calls for deeper analysis, we define the scope, deliverables, timeline and budget of a full audit.
By submitting this form you agree that Custos will use the information provided solely to assess the project and get in touch with you. We do not share your data with third parties.