Glossary · Formulation
What Is Anhydrous Formula?
An anhydrous formula contains no added water, using oils, waxes, butters and esters as its continuous phase. Because water is absent, microbial growth risk is much lower and preservation requirements differ, but the format is limited to balms, ointments, oil serums and similar textures.
Why it matters when you source
Anhydrous products can be easier on preservation and harder on sensory appeal and cost, since the entire formula is oil-phase. Ask how the factory considers water ingress in use, because a small amount of water from condensation or wet fingers changes the preservation picture.
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