Skincare
·5 min read
How to Tell If Your Vitamin C Serum Has Oxidized
Vitamin C serums degrade quickly. Learn how to spot oxidation, what causes it, and how to store your serum to maximize its potency and shelf life.
Trusted anti-aging guides backed by dermatological research
All articles tagged "skincare storage".
2 articles
Vitamin C serums degrade quickly. Learn how to spot oxidation, what causes it, and how to store your serum to maximize its potency and shelf life.
Every skincare product has a shelf life, and using expired products ranges from merely ineffective to potentially harmful. Active ingredients like retinol,...