What is the best way to store loose eyebright herb to keep it fresh?

Keep the loose herb in an airtight container—glass jars with tight‑sealing lids work well—to prevent moisture and oxygen from degrading the active compounds.

Store the container in a cool, dry place away from direct sunlight and heat sources, such as a pantry or cupboard. Avoid placing it near strong‑smelling foods or spices, as the herb can absorb odors over time.

Use the herb within 12 months of purchase for optimal flavor and potency. If you notice a dull or off aroma, it is best to replace the batch.

Do not store the herb in plastic bags or containers that may leach chemicals; glass or stainless steel is preferable.

If you are pregnant, breastfeeding, have a chronic condition, or take medication, consult a qualified professional before use.