Guides and insights on cosmetic testing & EU compliance.
Natural cosmetics preservation test explained: why natural and organic formulas need a challenge test, typical problems and how to prepare for ISO 11930.
Read more →Do anhydrous cosmetics need a challenge test? When water-free balms and oils are low risk, when they are not, and what evidence assessors expect.
Read more →Preservative free cosmetics: are they legal in the EU, can they be safe, and how to back the claim with a challenge test and microbiological data.
Read more →Challenge test vs microbiological test: one counts germs now, the other tests preservation over 28 days. Learn the differences and which you need.
Read more →Cosmetics category 1 category 2 microbial limits explained: who belongs where, typical CFU limits and how to plan your microbiological tests.
Read more →Total aerobic microbial count in cosmetics explained: CFU, yeast and mould counts, typical limits and how to read your lab report.
Read more →Burkholderia cepacia in cosmetics: what it is, why contaminated products are recalled, where it comes from and how to prevent it.
Read more →Mould in cosmetics: what causes it, which products are most at risk and how preservation, hygiene and testing prevent it.
Read more →Contaminated cosmetics signs: smell, colour, texture, gas and irritation. Learn how to spot them, what to do and how testing confirms it.
Read more →Prevent contamination in cosmetic production with five controls: water, raw materials, equipment, people and packaging, plus testing that proves it.
Read more →Cosmetic batch testing frequency: no fixed legal number. Learn how to set a risk-based plan and which changes trigger extra testing.
Read more →Freeze thaw test cosmetics explained: how freeze-thaw and temperature cycling work, what is checked and where they fit in stability testing.
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A challenge test is required for every cosmetic product except microbiologically low-risk ones, which are:
A challenge test is required for every cosmetic product except microbiologically low-risk ones, which are:
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