Begin with one use of the product: how the user picks it up, dispenses it and applies it. Then compare available assemblies using your formula and the same approval criteria.
Compare the actions to evaluate
| Format | What the sample review should establish |
|---|---|
| Airless bottle | The actual mechanism, filling sequence, priming, dose and emptying behavior |
| Dropper bottle | Pickup and release with the formula, closure sealing and applicator contact materials |
| Pump bottle | Priming, dose, return action, tube arrangement and closure fit |
These are evaluation questions. The format name does not establish a particular dose, viscosity range, compatibility result or shelf-life benefit.
Match the filling process
Ask for the assembly and filling instructions for the proposed model. Review the neck and sealing interfaces with your filler. Identify the contact parts and agree the storage, leakage and dispensing tests needed for the product.
Compare the finished designs
Review artwork space, opening and reclosing, transport protection and the appearance of the full pack. A pump collar, cap and body can have different materials and finishes; approve their combination on the sample.
Oulete’s catalog includes ZK airless models. Dropper and lotion pump enquiries need the component and supply route confirmed in the proposal.
Send the formula and dispensing brief to request options for evaluation.
Put the specification to work
Prepare a sample request. The tool shows its inputs and limits before you use the result in a project brief.
