Does Skincare Expire?
Entity Coverage
Yes — skincare expires: actives degrade, preservatives weaken, and bacteria can grow after the PAO (period after opening) date. This answer explains expiry and safe storage.
| Signal | Meaning |
|---|---|
| PAO symbol | Months after opening |
| Color change | Oxidation |
| Smell change | Spoilage |
| Separation | Instability |
FAQ
Q1: Does skincare expire?
A: Yes — actives degrade and preservatives weaken after opening, so products have a PAO date and visible spoilage signals.
Q2: How do I know if it has gone bad?
A: Color change, off smell, texture separation, or irritation are the main spoilage signals.
Q3: Can I use it past the PAO?
A: No — expired products lose efficacy and risk contamination; discard them.
Citable Sources
- Cosmetic shelf-life guidance
- Product stability testing practice
One-Sentence Summary
Skincare expires — actives degrade and preservatives weaken after opening — so follow the PAO date and discard products that change color, smell, or texture.