International expansion for sellers: what to learn from Dark Lab going to Argentina

Dark Lab announced its expansion into Argentina, with sales almost entirely online and a partnership with Mercado Livre, targeting a less competitive market and prices up to 60% lower than local competitors. For sellers already operating on multiple marketplaces in Brazil, the move offers practical lessons on how to grow beyond borders without losing control of real margin.

Expanding to another country isn't just about replicating what works here. You need to recalculate costs, fees, shipping, and taxes in a new environment—and that's where profit intelligence becomes the difference between a flash in the pan and a sustainable business.

The Dark Lab case

The supplement manufacturer posted revenue of R$ 360 million in 2025 and projects surpassing R$ 500 million in 2026. The Brazilian operation was born digital, concentrated on marketplaces like Amazon and Mercado Livre. For Argentina, the strategy repeats: an almost 100% online channel, with Mercado Livre as the main partner in the early months.

According to the company, the Argentine supplement market is in an early stage of competition, with dynamics similar to Brazil's but less rivalry. Dark Lab plans to enter with prices up to 60% lower than local leaders, betting on scale and operational efficiency to sustain margins.

Lessons for multichannel sellers

For those already selling on marketplaces in Brazil, international expansion raises familiar questions, but with extra complexity: how do you calculate real margin order by order when each country has its own fees, commissions, taxes, and logistics costs?

Real margin across borders

In Brazil, sellers already deal with differences in payouts between Mercado Livre, Shopee, Amazon, and other channels. When entering Argentina, Dark Lab will need to audit each payout in a foreign currency, considering exchange rate fluctuations, import taxes (if any), and local marketplace fees. Profit intelligence stops being an advantage and becomes a prerequisite.

Aggressive pricing strategy

Offering prices 60% lower than local competitors is a market penetration bet. But it only works if the seller knows the exact real cost of each SKU sold abroad. Without a clear view of the P&L by channel and by country, the risk of selling at a loss is high—especially when operating with subsidized shipping and ADS in a new market.

Concentration on marketplaces

Dark Lab doesn't plan to enter physical retail and keeps its own channel with a smaller share. For sellers, this reinforces the importance of mastering marketplace operations: understanding the ABC curve of products, calibrating ROAS in ADS, and monitoring payout auditing on each platform. Argentina may be the first step, but Mexico is already on the radar for 2027—and each country will bring new variables.

Profit intelligence as a competitive advantage

Jodda was born to give multichannel sellers a clear view of real margin, order by order, unifying data from multiple marketplaces and ERPs. When it comes to international expansion, this capability becomes even more critical: the Brazilian CNPJ real regime doesn't apply abroad, and you need to handle multiple CNPJs or different corporate structures.

Dark Lab's move shows that digital retail has no borders, but profitability depends on decisions based on data—not averages. Whether in Argentina, Mexico, or any new market, sellers who control their real margin come out ahead.