Your new supplement brand just signed with an ad agency. You are excited. You picture ads going live next week.

Then nothing happens for three weeks.

The agency is not being lazy. In almost every case, the slow start comes down to one thing: the agency never got the information it needed from you to actually build anything.

A good supplement ad agency should ask for a specific list of things before day one. If yours did not ask, that is a warning sign on its own. If it did ask and you were not ready, this guide will help you get ready fast.

Why Intake Is the Real Bottleneck

Media buyers cannot write ad copy about claims they are not allowed to make. Editors cannot cut UGC footage that was never sent to them.

Designers cannot match your brand if nobody shared a logo file or color codes.

Every one of those gaps turns into a follow-up email, and every follow-up email adds a day (or a week) to your launch. The brands that launch fastest are simply the ones that show up prepared.

We covered the bigger picture of what the opening stretch with a new agency should look like in What to Expect in Your First 90 Days With a Supplement Marketing Agency. This post is the practical checklist that sits inside week one of that timeline.

The 9-Item Intake Checklist

Here is exactly what we ask every new supplement client for at eBrandX, and why each item matters.

What We Ask For	Why It Matters
Ad account access (Meta Business Manager, TikTok, Amazon Ads)	No access means no launch, no matter how good the creative is.
Brand guidelines (logo files, colors, fonts)	Without this, creative gets built, then rebuilt once it does not match your brand.
Product label and Supplement Facts panel	Copywriters need the real ingredient list, not a guess, to stay compliant.
Claims substantiation or clinical references	This decides which claims are safe to run and which will get your account flagged.
Past top-performing ads and their metrics	Even bad data tells an agency what has already been tried.
Raw UGC footage or creator usage rights	Editors cannot cut content they were never sent, and cannot legally run footage without rights.
Offer structure (price, subscription terms, bundles)	Ad copy and landing pages have to match the real checkout, or customers bounce.
Pixel and tracking setup (or a plan to install it)	Without tracking, nobody can tell which ads are actually working.
A single point of contact on your side	Approvals move fast when one person can say yes, instead of waiting on a committee.

We wrote a longer breakdown of warning signs like this one in Agency Onboarding Red Flags: Questions Real Clients Should Ask Before Any Contract, which pairs well with this checklist before you sign anything.

"The agencies that move fastest in week one are not the ones with the biggest team. They are the ones who told you exactly what to send over, on day one, in writing."

What Happens When Intake Is Skipped

Picture two supplement brands signing with an agency on the same day.

Brand A gets a short intake form on day one. They send over their label, their brand kit, and ad account access within 48 hours. Their first ads go live in about a week.

Brand B never gets asked for anything specific. The agency starts "exploring creative directions" instead, which sounds nice but really means they are guessing.

Three weeks later, Brand B gets a draft ad making a claim their label cannot actually support. It gets rejected. Now they are fixing a compliance problem instead of scaling.

This is exactly why a compliance pass belongs inside intake, not after the first ad gets flagged. We walk through how that first compliance check should work in Supplement Ad Compliance Audit: What We Check in the First Call.

A Simple Way to Get Ready Before You Even Sign

You do not need to wait for an agency to send you a form. You can have most of this ready in an afternoon.

1. Export your product label and Supplement Facts panel as a PDF.
2. Pull your brand logo files, fonts, and hex color codes into one folder.
3. List every claim you currently make on packaging and on your website.
4. Gather any clinical studies or supplier documentation behind those claims.
5. Download your top 10 ads by spend from Meta Ads Manager, if you have run ads before.
6. Collect raw UGC files from creators, plus proof you have usage rights to run them as ads.
7. Write down your current pricing, subscription terms, and any bundles.
8. Confirm your pixel or tracking setup is installed, or flag that it still needs to be.
9. Decide who on your team will be the one person approving creative and copy.

Walk into your first call with this list mostly done, and you will separate yourself from most of the brands an agency onboards. You will also get a much more honest first conversation, because the agency can give you a real timeline instead of a hopeful one.

How Long Should Intake Actually Take?

There is no reason a full intake process should drag on for weeks. Most of it is just gathering files you likely already have somewhere.

Intake Step	Realistic Timeline
Brand owner gathers files and grants access	1 to 2 business days
Agency runs compliance and claims review	2 to 3 business days
Creative and copy go into production	3 to 5 business days
First ads go live	Day 7 to 10

If your current timeline looks nothing like this, the gap is almost always sitting somewhere in that first row. Slow files in means a slow launch, every time.

It is also worth asking your agency directly: what exactly are you waiting on from me right now? A good account manager should be able to answer that in one sentence, not a vague "we are still working on it."

How eBrandX Handles This

Every new supplement client at eBrandX gets this exact checklist in writing before onboarding starts, not after.

Our team runs a compliance pass on your label and claims first, so the creative we build never gets rejected for something that was avoidable. We also pull your past ad data (when it exists) so we are not starting from zero.

That is part of why most of our supplement clients see their first new ads live inside their first week or two, not their first month. If you want to see what that first call and first 7 days would actually look like for your brand, book a call with our team here.

If you want templates, swipe files, and a community of other supplement brand owners comparing notes on exactly this kind of agency vetting, our Supplements Scaling Insiders community covers it in more depth, alongside Amazon, Meta, and TikTok Shop growth tactics.

Get the intake right, and the rest of the relationship with your agency tends to go a lot smoother too.