Shelf Life and Storage of Activated Resorcinol™ Powder After Opening
Question
I have a question about Activated Resorcinol™ powder.
1. The website mentions "90 days after opening" next to the quantity. Does this refer to the ingredient's shelf life or something else (like the packaging)?
2. I purchased Activated Resorcinol™ in March 2016 and have used about half. Is it still usable?
3. How can I check if it's still good (e.g., by visual inspection)?
4. What are the best storage conditions after opening to ensure it lasts as long as possible (e.g., type of container, temperature)?
Answer
Clarification on Shelf Life and Activated Resorcinol™
The information "90 days after opening" next to the quantity (grams) on the website refers to the shelf life of the packaging (Plastic Vial), not the ingredient itself. As the staff explained, if the foil seal inside the plastic vial has not been opened, the ingredient's shelf life will be as long as the stated shelf life of the ingredient.
Regarding your Activated Resorcinol™ purchased in March 2016, since you have already opened and used half of it, its usability depends on its current condition and how it has been stored.
To check if it is still usable, please inspect the powder visually:
- Check for moisture: See if the powder has clumped together or become liquidy. If there is no sign of moisture absorption, it should still be usable.
To ensure the longest possible shelf life after opening, it is crucial to store Activated Resorcinol™ properly:
- Store in an airtight and light-proof container, such as a vacuum jar.
- Keep it away from light and humidity, preferably in a refrigerator (recommended storage temperature is 6-8°C).
Following these storage guidelines will help maintain the quality and extend the shelf life of the ingredient after opening.
