Vitamin C serum is a popular skincare product, but even with daily use, some people may notice their skin becoming dull and dark. Here are some of the main reasons why this may happen:
Combining Vitamin C Serum with Incompatible Products
Certain ingredients like retinol, AHA, or BHA can increase the sensitivity of your skin, especially when combined with vitamin C. If not used correctly, irritation may occur, causing your skin to look dull and lackluster. It’s important to be mindful of the products you use and how they interact with each other.

Some ingredients can increase skin sensitivity, especially when combined with vitamin C.
Not Using Sunscreen
While vitamin C has photoprotective properties, your skin is still vulnerable to sun damage if not protected by sunscreen. To maintain healthy and bright skin, be sure to use a sunscreen with an SPF of at least 30 every day, even on cloudy days.

Proper sunscreen use is crucial to prevent sun damage and skin discoloration.
Improper Storage of Vitamin C Serum
If not stored properly, vitamin C serum can oxidize and lose its effectiveness as a brightening agent. An oxidized serum typically turns brown or dark yellow. Always store your serum in a cool, dry place, away from direct sunlight, and opt for products with dark-colored packaging or specialized designs that protect the serum’s quality.
Choosing a Vitamin C Serum with a High Concentration
Using a serum with a high concentration of vitamin C can irritate your skin, causing redness and dullness. If you’re new to vitamin C, start with a lower concentration (5-10%) and gradually increase the percentage as your skin adjusts. This gives your skin time to build tolerance and reduces the risk of irritation.
Lack of Moisturization
While vitamin C serum can brighten your skin, it may not provide sufficient moisture. Without proper hydration, your skin can become dry and tight, leading to a dull appearance. Be sure to follow up with a suitable moisturizer after applying the serum to impart a natural glow to your complexion.
In summary, not using sunscreen, improper product storage, neglecting moisturization, choosing high concentrations, and combining incompatible products can all contribute to skin dullness and discoloration.
6 Ways to “Iron Out” Wrinkles for Healthier-Looking Skin
Facial massage is an effective way to boost blood circulation, relax facial muscles, and reduce the appearance of wrinkles and under-eye bags. It is a popular beauty treatment that can help to rejuvenate and refresh the skin, giving it a youthful and radiant glow. The technique involves gentle manipulation of the facial muscles and tissues, increasing blood flow and promoting lymphatic drainage. This not only helps to reduce puffiness and dark circles but also provides a soothing and relaxing experience, leaving you feeling refreshed and revitalized.