Why use Vitamin C serum daily but the skin is still dark, gray?

Vitamin C serum is a popular skin care product, famous for its ability to brighten and even skin tone.However, many people use vitamin C serum daily but still find their skin dark, gray.Here are some main causes of this situation and effective way to overcome.

1. Do not apply sunscreen

One of the main reasons why Vitamin C serum is not effective is not using sunscreen.Vitamin C has the ability to protect the skin from the harmful effects of UV rays, but if there is no protective layer from sunscreen, your skin will still be damaged and dull.UV rays can increase melanin production, leading to dull and uneven skin.To get healthy skin, you should use sunscreen with a minimum SPF 30 daily, even when it is shady.

2. Store the wrong vitamin C serum

Vitamin C serum is very sensitive to light and air.If not preserved properly, the product may be oxidized, losing the skin effectively.An oxidized serum is usually brown or dark yellow and has an unpleasant smell.To preserve vitamin C serum, you should keep the product in a cool, dry place and avoid direct light.Choose products with dark packaging or design to help protect serum quality.

3.

Vitamin C serum has the ability to lighten the skin but does not provide adequate moisture to the skin.If you only use serums without combining with other moisturizing products, the skin can become dry, leading to dullness.To improve this situation, make sure you use the appropriate moisturizer after applying the serum.Ingredients like Hyaluronic Acid, Glycerin or Ceramides will help moisturize and soften the skin, bringing natural brightness.

4. Select Vitamin C serum with too high concentration

Although the high level of vitamin C can be effective quickly, not everyone is suitable for high concentrations.The use of serums with too high concentrations can cause skin irritation, redness and dull skin.If you are just starting to use vitamin C, choose a product with low concentrations (from 5% to 10%) and slowly increase when the skin is familiar.This gives your skin time to adapt and reduce the risk of irritation.

5. Combining Vitamin C serum with unsuitable products

Combining vitamin C serum with unsuitable products can also cause gray skin.Some ingredients such as Retinol, AHA or BHA can increase skin sensitivity, especially when combined with vitamin C. If not used properly, the irritation can occur, causing the skin to become.Dull and poor vitality.To ensure safety, you should consult a dermatologist about how to combine skin care products appropriately.

Using Vitamin C daily serum is an important step in the skin care process, but it is not always the expected results.Not using sunscreen, preserving products in the wrong way, neglecting moisturizing steps, choosing too high concentrations and combined with inappropriate products can lead to dark skin, gray skin.Pay attention to these to optimize the effectiveness of Vitamin C serum and bring a healthy, radiant skin!

Here are some products you can refer to.