Private label vs custom formula supplements

In the supplement industry, private label (often called white label) usually means selling a manufacturer’s existing formula under your own brand, while custom formulation means the manufacturer makes a formula developed to your specification. Either way, the company named on the label is responsible under US law for reporting serious adverse events and for knowing how its product is made.

“Private label”, “white label”, “custom formulation”, “turnkey” and “contract manufacturing” are industry terms, not legal categories. FDA rules don’t define them, and manufacturers don’t all use them the same way. This guide describes what they usually mean in the industry, then the parts that are settled by law and apply whichever route you take.

What the terms usually mean

Contract manufacturing: in the industry, a manufacturer making a supplement that another company sells under its own brand. Private label and custom formulation are both kinds of contract work.
Private label: usually, a formula the manufacturer has already developed, sold under your brand and label. White label is often used to mean the same thing; some people use it for a generic product sold by many brands with little or no change. Ask which one a manufacturer means.
Custom formulation: usually, the manufacturer makes a formula developed to your specification, either one you bring or one its staff develop with you.
Turnkey: usually, the manufacturer sources the ingredients and packaging as well as making the product, so you receive finished, labeled goods. The opposite arrangement, where you supply some ingredients or packaging yourself, is sometimes called customer-supplied or consigned materials.

Private label vs custom formula compared

The table describes typical trade-offs as the industry usually describes them. Individual manufacturers vary, so treat each row as a question to ask rather than an answer.

	Private label	Custom formula
Formula	The manufacturer’s existing formula. You choose from what it offers.	Developed to your specification: ingredients, forms and amounts.
Exclusivity	Usually not exclusive: other brands may sell the same formula.	Depends on who owns the formula, which the contract decides.
What you control	Brand, label design, packaging choices within what is offered.	Formula, specifications, and usually more of the packaging.
What the manufacturer controls	The formula and how it is made.	How it is made, within the specifications you agree.
Time to first order	Usually shorter, since the formula already exists.	Usually longer: formulation and trial batches come first.
Questions to ask	Is the formula exclusive? Can it be changed? What are its specifications?	Who owns the formula? Who pays for development and trial batches?

Turnkey or supplying your own materials

Turnkey puts sourcing in the manufacturer’s hands, which means fewer suppliers for you to manage and less direct control over which ones are used. Supplying your own ingredients or packaging gives you that control, if the manufacturer accepts customer-supplied materials at all. Either way, the manufacturer is not excused from testing: under 21 CFR 111.75, it must conduct at least one appropriate test or examination to verify the identity of every component that is a dietary ingredient, whoever supplied it.

What the law asks of you on either route

Whichever route you take, your brand is on the label, and that carries obligations that don’t depend on who wrote the formula.

Your name on the label is qualified. The label must name the manufacturer, packer or distributor and its place of business. If the company named didn’t make the product, its name must be qualified with a phrase such as “Manufactured for” or “Distributed by” (21 CFR 101.5).
You report serious adverse events. The manufacturer, packer or distributor whose name appears on the label must report serious adverse events to FDA within 15 business days of receiving them (21 U.S.C. 379aa-1), and the label must include a domestic address or phone number for those reports.
You need to know how it is made. The CGMP rule, 21 CFR Part 111, applies to anyone who manufactures, packages, labels or holds a supplement. When FDA issued it, it said a distributor that has a manufacturer make a supplement sold under the distributor’s own label “has an obligation to know what and how manufacturing activities are performed”, so it can decide whether the product meets its specifications and whether to release it (72 FR 34752, at 34790). A stock formula does not change that.

How to start a supplement brand covers the rest of the US checklist, including claims and new dietary ingredients.

Which manufacturers offer which

This directory doesn’t yet record whether a manufacturer offers private label, custom formulation or turnkey work. For most listings we haven’t confirmed whether the company takes contract work at all, and some are marked as making their own brands with contract work not confirmed. Minimum orders, lead times and prices are also outside what we verify. So ask each manufacturer directly, and get the answers in writing: questions to ask a supplement manufacturer has a checklist.

Next step

Shortlist manufacturers that make your dosage form, for example capsule, gummy or softgel manufacturers, or browse all supplement manufacturers. Then request quotes and say in the request whether you want a stock formula or a custom one.

Common questions

What is the difference between private label and white label supplements?

In the industry the two terms are often used interchangeably for a stock formula sold under your brand. They are not legal terms, so ask each manufacturer what it means by them.

What is the minimum order for private label supplements?

It varies by manufacturer, dosage form and formula, and there is no regulated minimum. Ask each manufacturer for its minimum order quantity for your exact product, in writing.

Who owns a custom supplement formula?

Whatever your contract says. Ownership of a formula is a commercial term, not something FDA rules settle, so ask before development starts and get the answer in the agreement.

Can I supply my own ingredients to a supplement manufacturer?

Some manufacturers accept customer-supplied ingredients and some do not, so ask. Under the CGMP rule the manufacturer must still run at least one appropriate test or examination to verify the identity of each dietary ingredient it uses.

What is turnkey supplement manufacturing?

In the industry, turnkey usually means the manufacturer sources the ingredients and packaging as well as making the product, so you receive finished, labeled goods. What is included varies, so ask for a written list.

Am I responsible for a private label product I didn’t make?

Yes, in part. The company named on the label must report serious adverse events to FDA, and FDA has said a distributor selling a contract-made supplement under its own label must know what manufacturing is done and how, so it can decide whether to release the product.

Sources

Search the directory for certified or licensed manufacturers, or read how we verify each listing.