You’ve got the brand vision. You’ve picked the colors. Maybe you’ve even designed the packaging. Now you need to find a manufacturer and get samples that actually match what’s in your head.

Sounds simple, right?

Except it’s not. I’ve watched brand owners spend three, four, even six months going back and forth with suppliers because their initial brief was vague. They’d say things like “I want natural-looking brown lenses” or “make them comfortable.” And then they’d get samples back that were nowhere close — too dark, too small, too dry, too something.

The problem isn’t the supplier. The problem is the brief.

Here’s how to write one that gets you the right samples the first time.

What Most Brand Owners Get Wrong

Let me paint a picture. A brand owner emails a supplier:

“Hi, we’re looking for colored contact lenses for our new brand. We want high quality and competitive pricing. Can you send us some samples?”

The supplier replies: “Sure, what specifications do you need?”

The brand owner thinks for a moment and says: “Natural brown, comfortable, good quality.”

And that’s where the clock starts ticking. Because “natural brown” means different things to different people. To you, it might mean a warm honey brown. To the supplier’s technician, it might mean a deep chocolate brown with a dark limbal ring. You won’t know until you get the sample back — four weeks later.

Now you’re another month behind, and you still don’t have what you wanted.

This happens because most brand owners treat the brief like a formality. They think the supplier will just “get it.” But suppliers aren’t mind readers. They’re manufacturers. They need exact specs.

The Seven Things Your Brief Must Include

After working with dozens of brand owners and suppliers, I’ve put together a checklist. If your brief doesn’t have all seven of these, you’re probably going to waste time.

1. Exact Color Specifications

Don’t say “brown.” Say “Pantone 469 C with a 15% opacity gradient from center to edge.” Or better yet, send reference images. Three to five examples of the exact shade you want, from different angles and lighting conditions.

If you’re working with a supplier who uses their own color system, ask for their color chart first. Then pick from that. It saves everyone a lot of confusion.

2. Diameter and Base Curve

This seems obvious, but you’d be surprised how often it gets left out. The standard diameter for colored lenses is 14.0mm to 14.2mm. Base curve is usually 8.6mm or 8.7mm. But if your target market has different averages — say, you’re selling in Southeast Asia where slightly larger diameters are popular — you need to specify that.

Don’t assume the supplier knows your market. Tell them.

3. Water Content and Material

Here’s where comfort lives. Hydrogel lenses typically have higher water content (38% to 55%), which feels great initially but can dry out over time. Silicone hydrogel has lower water content (24% to 30%) but breathes better, so it stays comfortable longer.

Your brief should say: “We want silicone hydrogel, 26% water content, for 8-hour daily wear.” Or if you’re going hydrogel: “55% water content, monthly replacement schedule.”

The supplier needs to know this upfront because it affects the material they use, the manufacturing process, and the pricing.

4. Replacement Schedule

Daily disposable? Bi-weekly? Monthly? Yearly? This isn’t just a marketing decision — it’s a manufacturing spec. Different replacement schedules require different materials and production methods.

If you’re not sure, tell the supplier your target price point and wear pattern. They can recommend the right schedule. But don’t leave it blank.

5. Packaging Requirements

This is where a lot of brand owners stumble. You need to specify:

• Blister pack design (flat or curved)
• Solution type and volume (usually 0.08ml to 0.15ml per lens)
• Outer packaging (box, bottle, or custom)
• Labeling requirements (ingredients, warnings, batch number placement)
• Barcodes and regulatory marks (CE, FDA, or whatever your market requires)

If you don’t specify these, the supplier will use their default. And then you’ll get samples back in plain packaging with no branding, and you’ll have to start over.

6. Quantity and Timeline

Be realistic. If you’re asking for 500 pairs, the sampling process is going to be different than if you’re asking for 50,000. Some suppliers won’t even take small orders. Others specialize in them.

And give them a timeline. “We need samples by [date]” is not optional. It forces both sides to stay on track.

7. Approval Criteria

This is the one almost nobody includes. How will you evaluate the samples? What’s acceptable and what’s not?

Write it down: “Color must match reference images within 10% variance under natural daylight. Diameter must be within ±0.1mm of spec. Water content must be within ±3% of target.”

Now both you and the supplier know exactly what “good” looks like.

The Conversation You Should Have Before Sending the Brief

Here’s something I wish more brand owners would do: get on a call with the supplier before you send the brief.

Not a long call. Thirty minutes. Just enough to walk through your vision, ask about their capabilities, and clarify any questions.

You’ll learn things like:

• Do they have existing molds, or will you need custom tooling? (Custom molds can add 4-6 weeks and $2,000-$5,000 to the project.)
• What’s their typical sampling timeline? (If they say “two weeks,” ask what happens if you need revisions.)
• Do they have experience with your target market’s regulations? (If you’re selling in the EU, you need CE marking. If they’ve never done it, walk away.)
• Can they handle your packaging requirements in-house, or do you need a separate vendor?

This conversation saves you weeks of email tag and prevents misunderstandings before they happen.

What to Do When the Samples Aren’t Right

Let’s say you followed all this advice. You sent a detailed brief. You had the call. And the samples still aren’t quite right.

Don’t panic. This happens. But don’t just say “these aren’t good.” That doesn’t help anyone.

Instead, be specific:

• “The color is too warm. We need it to be more neutral, closer to reference image #3.”
• “The lenses feel dry after 4 hours. Can we increase water content by 5% or switch to a different material?”
• “The diameter is correct, but the limbal ring is too thick. Please reduce by 0.3mm.”

Give the supplier clear, actionable feedback. And set a deadline for the revised samples.

The Bottom Line

Sampling doesn’t have to take months. It can take four to six weeks if you do it right. The key is to front-load the work. Spend the time writing a detailed brief, have that initial call, and set clear expectations.

Your supplier wants to get it right too. They’re not trying to waste your time. But they can’t read your mind.

So give them something to work with. Be specific. Be clear. And you’ll have the right samples in your hand before you know it.