Is the preservative-free hydrosol safe from microbial contamination?

Yes — every batch is microbiologically tested and released within strict limits, thanks to hygienic production, aseptic filling and sealed containers.

Safety in use depends on the whole chain: the hydrosol leaves the factory with a controlled microbial load, and afterwards the buyer's storage and consumption habits determine how it performs. Keeping it cool, sealed and used within 3–6 months of opening maintains that safety margin.

For retail products with a long shelf life, we recommend formulating with a compliant preservative system at the finished-product stage — our OEM team can help. Request the latest microbiological COA for your batch.

This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.