By the time you pay a production deposit, you should know which company will fulfil the order, where the product will be made and what evidence you will receive with it. A supplier's website can help you build a shortlist. The decision needs to rest on answers specific to your product.
Send each candidate the same brief: formula requirements, format, pack contents, quantity, sales countries and delivery destination. Keep the replies and quotations together so differences remain visible.
Who is actually making the order?
Establish the legal name of the company you will contract with and the location of the proposed manufacturing facility. Filling, packaging or testing may take place elsewhere. If the supplier uses subcontractors, find out which operations they perform and who is accountable for the finished goods.
The relevant question is whether that arrangement can deliver your product reliably. A factory that makes capsules may not have the equipment or experience for your proposed liquid. Ask about the format and process you need, rather than accepting a broad claim of supplement expertise.
Where a certification is presented, check the site, activities, issuer and validity period it covers. A certificate belonging to a different facility may tell you little about the order under discussion.
What will you approve?
The sample and the specification do different jobs. You can inspect a sample's appearance, taste or texture. The specification defines the product the factory is agreeing to supply.
For an existing formula, identify whether the sample comes from current stock. For development work, ask how the sample relates to the planned commercial process and what further work remains before scale-up.
Review the composition, pack contents, packaging, storage conditions and shelf-life arrangements with the supplier's technical contact. Keep a dated version of the approved specification and artwork.
Changes after approval need a process. Agree how the supplier will notify you of a proposed ingredient substitution or packaging revision, who reviews it and whether production must wait for approval. Otherwise, two parties can believe they have agreed to different products.
What does the testing tell you?
Ask the supplier to explain the test programme for this formula. Relevant work may include ingredient identity, active content, microbiological quality, contaminants and stability. The selection depends on the product and its risks.
It matters where the evidence comes from. A raw-material report describes the material tested; it does not automatically establish every characteristic of the finished product. Some tests may be performed on every batch, while others form part of a periodic programme.
An example certificate of analysis can make this discussion concrete. Look for the batch identification, parameters, methods and results, and ask which values are measured, calculated or drawn from supplier records. Commercially sensitive information can be removed from an example without making the document meaningless.
The certificate's value is limited to its scope. It does not prove every possible quality attribute or validate all claims you might want to put in an advert.
For shelf life, establish what evidence supports the proposed period and whether it relates to the formulation and packaging you intend to buy. Storage conditions belong in that discussion.
What happens after delivery?
Discuss a complaint before you have one. Identify the supplier contact, the batch records available and the process for investigating a possible defect. Agree how both businesses would coordinate if stock had to be withdrawn.
Then consider routine supply. You need repeat-order lead times, notice of material changes and an agreed minimum remaining shelf life on arrival. These details can matter more once the product is selling than the difference between two introductory quotations.
For a developed formula, settle ownership, permitted use and access to transfer documents before the development work starts. If changing factories later is important, explain that requirement explicitly. An ingredient list alone may not provide everything needed to transfer production.
Resolve the gaps in the offer
Before paying, the written proposal should answer these questions:
- Which specification and artwork versions govern the order?
- How many finished packs will arrive, and what will each contain?
- Which tests and documents are included?
- What market-specific work will the supplier perform?
- When are payments due, and what happens if the brief changes?
- What starts the lead time, and does the delivery date include testing and transport?
Record unanswered points as open items. A general assurance such as “we handle compliance” needs to become a list of tasks and deliverables for the countries where you will sell.
If a supplier cannot explain a material part of the offer, there is not yet enough information to compare it properly. Resolve that gap before treating its price as the cost of a complete order.
Scope and sources
This is a purchasing guide, not an audit or endorsement of any supplier. Testing requirements and commercial terms depend on the product and supply arrangement.
