When to Replace Lipstick: Complete Expiration Guide
Last Updated: 2026-01-04
Quick Answer
Replace lipstick every:
- Traditional lipstick: 12-18 months after opening
- Liquid lipstick: 12 months after opening
- Lip gloss: 12 months after opening
How to Tell If Your Lipstick Is Expired
1. Visual Signs
- White film or beads on the surface
- Color change or fading
- Texture becomes grainy or separated
- Visible mold
2. Smell Test
- Rancid or off smell
- Loss of original scent
- Chemical or waxy smell
3. Texture Changes
- Becomes too hard or too soft
- Grainy or separated texture
- Doesn't glide smoothly anymore
4. Performance Issues
- Causes lips to feel dry or irritated
- Color doesn't apply evenly
- Feathers or bleeds more than usual
- Tastes different or unpleasant
Why Lipstick Expires
Bacterial Transfer
Each time you apply lipstick, bacteria from your lips transfer to the product. Saliva and food particles can also contaminate the lipstick.
Oxidation
Oils and waxes in lipstick oxidize when exposed to air, causing color changes and texture problems.
Moisture Exposure
Lipstick is exposed to moisture from your lips every time you use it, which can break down the formula over time.
Preservative Degradation
Preservatives in liquid lipsticks and glosses become less effective after 12 months, allowing bacterial growth.
The Hidden Cost of Expired Lipstick
Health Risks:
- Lip irritation and chapping
- Bacterial infections (especially for liquid lipsticks)
- Allergic reactions
- Cold sore reactivation from contaminated product
Note: These risks are why it's crucial to replace lipstick regularly and watch for expiration signs.
Never Lose Track Again
ProjectPan Journey automatically tracks your open dates and alerts you before lipstick expires.
How to Extend Shelf Life
While you can't stop lipstick from expiring, these tips can help maximize its lifespan:
- Store in a cool place away from heat
- Keep cap tightly closed
- Avoid leaving in hot cars or direct sunlight
- Don't share lipsticks with others
- Wipe off the top layer if you had a cold sore
- Keep liquid lipsticks sealed when not in use
Replacement Schedule Recommendations
Every 12 months:
- Liquid lipstick
- Lip gloss
- Tinted lip balm
Every 18 months:
- Traditional lipstick
- Lip liner
Use ProjectPan Journey to set custom reminders based on your specific products and PAO symbols.
Frequently Asked Questions
Can I use lipstick past its expiration date?
It's not recommended. The PAO (Period After Opening) symbol on packaging indicates when lipstick is most effective and safe. After this period, the formula may harbor bacteria, lose effectiveness, or cause skin reactions. When in doubt, throw it out.
How do I read the PAO symbol?
The PAO symbol looks like an open jar with a number and "M" (for months). For example, "12M" means the product should be used within 12 months after opening. This countdown starts when you first open and use the product, not when you purchase it.
Does unopened lipstick expire?
Yes, even unopened products have a shelf life, typically 2-3 years from manufacture date. Look for a small jar icon without a number or a batch code. Once opened, the PAO period applies. Store unopened lipstick in a cool, dark place.
What if my lipstick expired but looks fine?
Even if it looks and smells normal, the preservatives may have broken down and bacteria could be present. It's better to be safe, especially for products used on your face. The expiration date exists for safety, not just quality.