Plain-language guides to formats, ingredients, packaging and compliance — written by the people who run the lines.
A batch record is the complete history of one batch. Written during manufacture, it is the only document that can recons…
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A COA says what a material is and how it performed. An SDS says what hazards it carries. Requesting the wrong one is a c…
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Every cream is an emulsion, and the emulsifier system decides stability, feel and how the product fails if it fails.
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A dropper looks precise and doses inconsistently. Bulb size, tube length and formula viscosity set the actual volume per…
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Retinol is a dose-and-delivery problem, not a concentration problem. Light, oxygen and the pack decide how much arrives …
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Qualification is a documented judgement that a supplier can consistently make what you specified. It is cheaper than the…
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The vocabulary that comes up in every formulation meeting, in one page. Save it before your next supplier call.
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