How an emulsion holds together
What surrounds an oil droplet, what an emulsifier contributes, and why a smooth-looking cream tells us only part of the story.
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the surface.
The ingredients, ideas, and processes behind the everyday. A journal for curious minds, in and beyond the lab.
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Who did what, and when? Reading a laboratory record
A measurement at 09:10, an entry at 09:25, and a review at 10:00 are different events. A laboratory record should make each understandable.
3 min read
Which formula did we make? Keeping versions identifiable
A pilot ticket says version 3, but its quantities match version 4. Here is how clear formula history helps resolve that mismatch.
3 min read
What to put in a laboratory cleaning log
A cleaning log should explain the work and any problem left to resolve. Follow a vessel with residue through the record and its follow-up.
2 min read
What to check before using a laboratory instrument
A current service label does not answer today’s readiness question. Check the method, reference materials, readings, and response to a failure.
3 min read
What an equipment maintenance history should explain
When a mixer fault returns, two entries saying “serviced” are not enough. Keep the findings, repairs, checks, and equipment use together.
2 min read
Tracing a cosmetic batch from ingredients to finished stock
Follow two ingredient lots into one bulk batch and two filling runs to see where traceability records commonly lose the connection.
3 min read
Regulatory updates
All updatesUnited States
Practical guidance on an existing statutory requirementMoCRA safety substantiation: putting the product file together
Understand the US safety-substantiation requirement and organise a product file around identity, evidence, scientific reasoning, and later changes.
Read briefingEuropean Union
Implementation guidance on enacted legislationEU fragrance-allergen labelling after July 2026
Work through EU fragrance-allergen data, finished-product calculations, artwork checks, and transition-stock evidence after the July 2026 deadline.
Read briefingEuropean Union
Final regulationEU fragrance allergens: what the 2026 and 2028 dates mean
Distinguish the passed EU placing-on-the-market deadline from the remaining transition for making qualifying fragrance-allergen stock available.
Read briefing