Product Expiration Tracker
Track skincare product expiration based on PAO (period after opening), storage conditions, and product type.
Inputs
months
months
Results
Status
Good — Use Regularly
Months Remaining4.8 months
Days Remaining146 days
Effective PAO11 months
Lifespan Used56%
How to Use This Calculator
- Select the product category (serum, moisturizer, sunscreen, etc.).
- Enter the manufacture or opening date.
- Input the period-after-opening (PAO) number shown on the product packaging.
- Review the Expiration Date and Days Remaining outputs.
- Use the Status indicator to decide whether to continue using or discard the product.
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