How we checked
On 23 September 2026 we opened the public acceptable use policy, anti-spam policy or terms for six email platforms: Klaviyo, Brevo, Mailchimp, Omnisend, ActiveCampaign and Sendlane. We also included our own policy, so you can hold us to the same standard.
For each platform we recorded three things:
- the exact clause that covers peptides, drugs or research chemicals;
- the link to the page it comes from;
- the policy date, exactly as the page prints it, or a note that no date is printed.
We did not paraphrase the clauses in the table. Where we shortened a quote, the three dots show where. When a platform changes its wording, we will update this page and the date at the top.
The table
Every quote below was read on 23 September 2026. Follow the link to read the full clause in context.
| Platform | Exact clause | Link | Policy date |
|---|---|---|---|
| Klaviyo | "You may not use the Services to offer products or services related to: ... Prescription medications, pharmaceutical products or services, medical therapies, telehealth, and other related technologies, products, or services." | Acceptable use policy | Updated: April 9, 2026 |
| Brevo | "D.2 Content, products, or services not accepted regardless of legality: ... Peptide-based products for injectable or oral human therapeutic, weight-loss, or performance use (e.g. GLP-1 analogues, growth hormone peptides), including those labeled "research use only", whether or not sold under prescription or legal in the recipient's jurisdiction." | Anti-spam policy | Not printed on the page |
| Mailchimp | "Some industries have higher-than-average abuse complaints, which can jeopardize deliverability. In order to maintain the reliability of our platform, we may not allow businesses that offer these types of services, products, or content: ... Pharmaceutical products" | Acceptable use policy | Not printed in the page text |
| Omnisend | "3.2.1. Unauthorized, counterfeit, or illegally distributed pharmaceutical products, and prescription medications (including but not limited to drugs for research purposes);" | Acceptable use policy | Last Updated: April 30, 2026 |
| ActiveCampaign | "Send Marketing Content or any other messages regarding: ... drugs, whether available only by prescription or over- the-counter, or any other product that claims to diagnose, cure, treat, or prevent a disease; dietary supplements except (a) to Contacts located in the United States and (b) in compliance with all applicable laws..." | Acceptable use policy | Effective: March 1, 2022 |
| Sendlane | "businesses offering the following types of services, products, or content cannot utilize our Services: (a) escort and dating services; (b) pharmaceutical products;" | Terms | Updated on: 2/22/2024 |
| Amino Engine | "We built this platform for peptide and research compound brands, because the mainstream providers throw them off." | Acceptable use policy | Last updated: 5 September 2026 |
Platform notes
Klaviyo
The word peptide does not appear. The clause covers prescription medications, pharmaceutical products or services, medical therapies and telehealth. The same page reserves the right "to evaluate and restrict any use cases related to illegal or controlled substances in accordance with the policies and compliance standards of our downstream providers." Klaviyo decides what falls inside those words. Our Klaviyo alternative page goes further.
Brevo
Brevo is the only platform in the table that names peptides, and the only one that names the research use only label. It also says the rule applies regardless of legality. Read our Brevo alternative page if you send from Brevo today.
Mailchimp
The clause sits in a list of higher-complaint industries, and the wording is "may not allow". The same policy lists "Nutritional, herbal, and vitamin supplements" as content subject to additional scrutiny. Peptides are not named. See our Mailchimp alternative page.
Omnisend
Clause 3.2.1 is about unauthorized, counterfeit or illegally distributed pharmaceutical products and prescription medications. The words in brackets, "including but not limited to drugs for research purposes", are the closest any platform besides Brevo comes to research use only.
ActiveCampaign
The clause covers drugs, prescription or over the counter, and any product that claims to diagnose, cure, treat or prevent a disease. Dietary supplements are allowed only to contacts in the United States and in compliance with applicable law. Peptides are not named.
Sendlane
The clause is in Sendlane's terms, not a separate acceptable use page. It lists pharmaceutical products among the businesses that cannot use the service. Peptides are not named.
Amino Engine
Our policy accepts peptide and research compound brands on purpose. It is also strict: "Research compounds are not medicines, and you may not describe them as if they were." No therapeutic claims, no dosing, no health testimonials, in any email or on any page an email links to.
Why policy wording matters more than sales calls
A sales rep can be friendly, and an account can be approved at signup. Neither of those is the policy. Approval at signup is not approval at review.
Reviews tend to happen later, when a trust and safety team looks at your catalog, your landing pages or a spike in complaints. At that point the only thing that counts is the written clause. If it covers your category, the earlier conversation does not help you.
That is why the table above quotes clauses and nothing else. When you choose a platform, choose on the words it has published, and keep a copy of the policy as it read on the day you signed up.
What "research use only" does and does not change
Many peptide brands label their products research use only. That label matters for how you describe and sell your products. It does not work as a pass with email platforms, and it does not work as a shield with regulators.
On the platform side, Brevo names the label in its policy and still does not accept the products. On the regulator side, the FDA looks at the whole site, not only the label. In an FDA warning letter dated 24 August 2026, the agency wrote: "Despite statements on your product labeling marketing your products 'for research use only' and 'not for human or veterinary use,' evidence obtained from your website establishes that your products are intended to be drugs for human use."
The lesson for email is simple. What you send, and the pages you link to, are part of how your products are judged. Keep human-use language out of both. We cover the pattern in more depth in our post on FDA warning letters to peptide sellers in 2026.
Questions to ask any platform before you import a list
Ask these in writing, and keep the answers.
- Does your acceptable use policy accept my category? Which clause should I read?
- Who runs the servers my mail leaves from? Is there another provider above you with its own policy?
- Can I import my unsubscribes and bounces as well as my contacts?
- If you close my account, how do I get an export of my contacts and opt-outs?
- Does the platform connect to my store, so orders, carts and consent arrive on their own?
- Can I send from my own domain, and how is a new sender warmed up?
A platform that cannot answer the first two clearly is telling you something.
Where Amino Engine fits
Amino Engine is an email platform for peptide brands. Mail leaves from your own domain, on servers and IP addresses Amino Engine runs, so no outside email provider sits above your account. New senders are warmed up over 42 days. A WooCommerce plugin connects your store today, and Shopify is next.
You get flows, campaigns, a drag-and-drop builder, segments, signup forms with double opt-in, and revenue reporting. You can import from Klaviyo or Brevo by CSV, and unsubscribes and bounces carry over as unsubscribes and bounces. Every plan starts with a 7-day free trial and no card. The plans are on our pricing page, and the full guide is email marketing for peptide brands.
This is general information, not legal advice.