Switching Cosmetic Manufacturers: Third-Party Technology Transfer

You can move a product to a new cosmetic manufacturer without changing it, but only if you hold, or can obtain, the formula, the process method, the specifications and a signed-off reference sample. Plan the move as a technology transfer with pilot batches and side-by-side testing, and keep your current supplier's stock running until the new product has passed.

Brands switch for ordinary reasons: a minimum that no longer fits, quality drift, slow reorders, or a range that has outgrown the original factory. The risk is not the paperwork. It is that the product feels different when the jar is opened, even though the ingredient list has not changed. This article sets out the sequence that keeps that from happening, the documents a new manufacturer will ask for, and the traps that stop a transfer before it starts.

Step zero: find out what you actually own

Before you approach anyone new, read your current agreement and any correspondence about the formula. Three situations are common.

• You own the formula. Your contract says so, and you hold the full composition and method. The transfer is straightforward.
• The manufacturer owns the formula. This is normal for ready or stock formulas. You bought a finished product, not the recipe. You cannot hand the recipe to someone else, because you do not have it and may not be entitled to use it.
• It is unclear. The agreement is silent or ambiguous. Resolve this before spending money on a new supplier.

If you are in the second or third group, the realistic route is not a copy but a reformulation to match, covered below. The principles of ownership, non-disclosure and what a clean exit looks like are in who owns the formula in third-party manufacturing, and the exit and notice clauses to look for are in the contract terms guide. Check current rules and your own contract with a legal adviser before you act on either.

The documents to request from your current manufacturer

Ask in writing, politely, and early. A manufacturer is not always obliged to hand these over, so the answer depends on your agreement. If you own the formula, request:

• The full formula with ingredient names, grades, supplier references and quantities, in weight-by-weight or batch form.
• The manufacturing process: order of addition, temperatures, mixing speeds and times, homogenisation steps, cooling method, hold times, and in-process checks.
• The finished-product specification: appearance, colour, odour, pH, viscosity, density, and any other measured limits.
• The raw material specifications and certificates, especially for fragrance, colour and any ingredient that changes behaviour by grade.
• Stability and safety data you paid for, including any preservative efficacy work.
• Packaging specifications: component drawings, material, closure torque, fill volume, and any compatibility notes.
• Recent batch records and certificates of analysis, so the new manufacturer can see the real range, not just the target.
• Labelling artwork and the ingredient declaration currently in use.

If you do not own the formula, you can still ask for the finished-product specification, packaging data and testing you paid for. Those belong to your brand in most arrangements, but confirm that with your adviser.

Build the reference set

Documents describe a product; samples define it. Collect several retained units from different batches and keep them somewhere cool and dark. Label each with batch number and date. Three to five is a sensible working set because it shows the natural variation the new product has to sit inside.

Also write down the sensory description in plain words: how it pours, how long it takes to absorb, how it foams, how it smells at opening and after some minutes on skin. These notes feel soft, but they are what you will argue from if instrument readings pass and customers still say it is different.

The transfer, step by step

1. Brief the new manufacturer. Share the specification, reference samples, target cost structure and packaging. Be honest about what you do and do not own. A good manufacturer will tell you early whether they can match it.
2. Agree the route. If you hold the formula, the manufacturer scales your method on their equipment. If you do not, their lab builds a matching formula from the reference samples and ingredient declaration. The second route produces a similar product, not an identical one, and you should say so to your team.
3. Lab sample. The first sample is usually made in small volume. Compare it against the reference set on appearance, colour, odour, texture, pH and viscosity. For custom work, Harrods Health quotes typically 2 to 4 weeks for a custom formula sample, and other manufacturers will give you their own range. Treat that as a planning input, not a promise, and allow for more than one round.
4. Revise and re-sample. Expect adjustments to thickener, emulsifier level, fragrance load or colour. Record each change so you can see what moved the result.
5. Pilot batch. Once the lab sample is approved, ask for a pilot or first production-scale batch. Texture and stability behave differently at scale, because heating, mixing and cooling times change with vessel size.
6. Comparison testing. Run pilot against reference side by side: physical measurements, sensory panel, and accelerated stability alongside your retained product. See stability and safety testing before launch for what a sensible programme includes.
7. Packaging compatibility. Fill the pilot into the real components and check for leakage, pump dosing, discolouration, label adhesion and any interaction between formula and material. A formula that passes in glass can fail in a different plastic.
8. Sign off in writing. Approve the specification, the reference sample and the packaging as a set. This becomes the standard every future batch is judged against.
9. Update labels and records. A new manufacturing site, a slightly different ingredient declaration or a changed batch code may require label and notification updates. Check current requirements with your regulatory adviser rather than assuming the old label still works.

What a new manufacturer will need from you

• The documents and samples above, or a clear statement of what you cannot provide.
• A target cost and order size, so the lab does not match the product with ingredients you cannot afford at scale.
• Your quality expectations: tolerance on colour and viscosity, and what counts as a rejected batch.
• Artwork and packaging, or the supplier details for components you will keep.
• A named decision-maker for sample approvals. Rounds drag on when feedback arrives from five people.

Their own process is described in the brief-to-bulk process, and it is worth checking their quality documentation in the same way as you did the first time, using the quality system checklist.

Overlap stock: do not cut the old supply too early

The most expensive mistake in a switch is stopping the old supply before the new product is proven. Plan an overlap.

• Work out how many weeks of sales your current stock covers, then place a final order with the old manufacturer large enough to cover the whole transfer, including delays.
• Do not launch the new batch until it has passed comparison testing, and keep part of the old stock back as a fallback.
• If the new product differs slightly, consider selling through old stock first and introducing the new batch with a clear batch cut-over, rather than mixing them on shelf.
• Give notice to the old manufacturer in line with your agreement, and confirm in writing what happens to your tooling, components and leftover packaging.

Pitfalls that derail a transfer

• The formula is not yours. You cannot transfer what you do not hold. Plan a matching reformulation instead, with realistic expectations on how close it will be.
• Process-dependent texture. Creams and gels depend on how they are made as much as what is in them. Shear rate, cooling speed and the point at which a thickener is added can change feel. Without the process method, the new lab has to rediscover it.
• Fragrance and colour supply. If the original fragrance or pigment is proprietary to your old supplier, you will need an equivalent, and scent tends to be the first thing customers notice.
• Packaging tooling in the wrong place. Moulds and plates may be held by the old manufacturer or their vendor. Settle ownership and release before you switch.
• No reference batch. If you only have one retained unit, you cannot judge natural variation and may match an unusually good or poor batch.
• Skipping the stability repeat. A product that matches on day one can drift later if the preservation system or packaging interaction differs.

When a supplier resists sharing basic information, or avoids the question of who holds the formula, that is itself informative. See red flags when vetting contract manufacturers for similar signals, and how to choose a third-party cosmetic manufacturer if you are building a shortlist for the move.

For the wider context on sourcing, agreements and quality, start from the complete guide to third-party cosmetic manufacturing in India. If you want to discuss a transfer, the Harrods Health team can be reached through the contact page.