How Often to Use Vitamin C Serum
Finding the right balance and observing how your skin responds can help determine the most effective usage frequency for harnessing the full potential of Vitamin C's skincare benefits.
Vitamin C Serum2
Check out the latest posts
How Long Does Vitamin C Serum Last
The answer lies at the intersection of formulation, storage, and usage habits. Typically, an unopened bottle of vitamin C serum maintains its efficacy for up to two years, contingent upon proper storage in a cool, dark place to preserve its potency.