Why aggregators approve you and then close you
Stripe, Square, PayPal and similar platforms onboard instantly because they underwrite statistically, not individually. You are approved because nothing in the signup form tripped a rule, not because anyone looked at what you sell.
Review comes later, triggered by volume, a dispute, a support ticket, or a routine sweep. When the reviewer opens your storefront and identifies research chemicals or unapproved pharmaceuticals, the account is terminated under terms you already agreed to. Settled funds are typically held for 90 to 180 days while the platform assesses its own liability exposure.
What changed in 2026
Mastercard updated its Business Risk Assessment and Mitigation program to address research peptides and unapproved pharmaceuticals directly. That removed the ambiguity acquirers had been operating inside. Banks that were relaxed about the category two years ago are now either underwriting it strictly and knowingly, or exiting it.
The practical consequence: nobody can promise you an approval, and any vendor who does is selling something they do not control.
What the working route actually looks like
- A manually underwritten account at an acquirer that knows exactly what you sell
- Correct merchant category coding for what you actually are
- A site that survives a compliance read: research positioning consistent across every page, no dosing language, no human-use claims, no consumer framing
- A planned rolling reserve, budgeted as a launch cost rather than discovered as a shock
- More than one banking relationship behind your ISO, so a single acquirer exiting the category does not end your processing
What to refuse, every time
Four proposals circulate in this category. Each one is a card network violation, and the last is potentially a federal offence.
- Miscoding. Opening the account under a category that misdescribes the business.
- Aggregating. Placing you under someone else’s merchant ID alongside unrelated merchants, without registration.
- Splitting. Distributing volume across entities to stay under monitoring thresholds.
- Transaction laundering. Running your sales through a third party’s merchant account and remitting to you.
Each of these works briefly and then fails in the worst available way: termination with a network violation attached rather than an ordinary closure. If a vendor proposes any of them, that is the clearest signal available that you are talking to the wrong party.
Where we sit
We make introductions and help assemble the file. We do not process payments, we are not a payment facilitator, and we never run a client’s volume through our own account. The introduction is to acquirers and registered ISOs that underwrite this category transparently, with your entity on the account and your category coded for what it is.