Don’t Forget Your Sunscreen in the Morning
The benefits of vitamin C can be “neutralized” by UV rays if not paired with sunscreen. Therefore, whenever you use a vitamin C serum, always apply a layer of SPF 30 or higher sunscreen to maximize the product’s effectiveness.

Always Apply Sunscreen with SPF 30 or Higher When Using Vitamin C Serum
Prioritize Serum Vitamin C in Dark-Colored Glass Bottles
Vitamin C should be packaged in dark-colored bottles to avoid exposure to light and oxygen, which can degrade its potency. Using a serum packaged in a dark glass bottle will help maintain the stability and effectiveness of the product.
Let Your Skin Rest for 10-15 Minutes After Applying Vitamin C Serum
After applying vitamin C serum, allow your skin to rest for about 10-15 minutes before continuing with your skincare routine. This will enhance the absorption of vitamin C, optimizing its benefits.
Choose a Vitamin C Serum Suitable for Your Skin Type
Individuals with sensitive skin should opt for products with a lower concentration of vitamin C (around 10-15%), while those with normal skin can use serums with a higher concentration (15-20%).

Choose a Lower Vitamin C Concentration for Sensitive Skin
Store Your Vitamin C Serum in the Fridge
Keeping your vitamin C serum in the fridge can slow down the oxidation process, prolonging its shelf life. Remember to take it out about 5-10 minutes before use to allow the serum to reach room temperature.
Do Not Use Vitamin C Serum in Conjunction with AHA, BHA, or Retinol
Vitamin C’s acidic nature may cause skin irritation when combined with AHA, BHA, or retinol. These ingredients can also neutralize each other’s effects, reducing their effectiveness. It’s best to use your vitamin C serum separately.
Avoid Choosing a Product with an Extremely High Vitamin C Content
Using a vitamin C serum with a concentration higher than 20% can irritate the skin, leading to redness, stinging, and peeling. Instead, opt for a concentration between 10-15% to achieve optimal results without causing potential harm.
Use Your Vitamin C Serum Consistently, Every Day
Vitamin C is most effective when used consistently and regularly. Its effects are cumulative, meaning that frequent use will lead to more noticeable improvements in your skin. Inconsistency or skipping its use may result in the appearance of wrinkles and dark spots.
While vitamin C serum is a powerful tool for achieving even skin tone and preventing aging, it’s important to use it correctly to maximize its benefits.