Information

Shelf Life

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Reagents

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Plastic Bottles:

We recommend replacing reagents in plastic bottles 1 year from the date of receipt. Some may remain effective beyond that, but it’s important to test them on a known control substance to confirm they’re still active.

Glass Bottles:

Reagents stored in glass bottles typically last 2 to 4 years, depending on storage conditions. Testing with a control substance is always a good idea before use.
 

Mandelin Reagent:

This reagent is less stable than others and should be replaced every 6 months, regardless of whether it’s stored in plastic or glass.

When to Replace a Reagent:
 

• If you see crystals or powder separating from the liquid, gently shake the bottle to mix.

• Be careful when shaking glass bottles — while the pipette seals are high quality, they are not completely airtight.

• If the reagent has completely evaporated or only crystals remain, it should be discarded and replaced.​​

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Test Strips

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Test strips have a 2-year shelf life from the date of manufacture.

We rotate our stock regularly to ensure customers receive the freshest inventory available.

If you need strips with a specific expiration date, please contact us directly and we’ll do our best to accommodate your request.