Guide
White label or private label: a decision, not a synonym
Updated
The two terms are used interchangeably in marketing and they describe genuinely different arrangements, with different costs, different timelines and very different answers to the question of what you own at the end.
White label
An existing formulation, already developed and already made, with your branding applied. Fast, comparatively cheap, low minimum quantities, and available immediately.
The trade-off is that it is the same product other brands are selling, because the manufacturer developed it to sell to several customers. That is a legitimate way to start and a difficult thing to build a defensible brand on.
Private label
A formulation developed or adapted for you, which takes longer, costs more and carries higher minimum quantities.
What you get for that is a product somebody else is not selling, and the possibility of owning the specification, which depends entirely on what the contract says.
Your own formulation
You bring the specification and the manufacturer makes it. Highest control, highest development cost, and the clearest ownership position.
This is the route for a brand with a genuine formulation advantage, and it is over-chosen by brands that do not have one, who spend development money to arrive at something close to the white label base.
Choosing between them honestly
Ask what your product's actual advantage is. If it is brand, positioning, audience or distribution, white label serves that and lets you spend the money on the part that is doing the work.
If the advantage is genuinely the formulation, private label or your own specification is the only route that protects it, and the contract has to say who owns the result before development starts.