The yellowing of the cotton pad may be due to the poor quality of cotton. Some low-priced cotton pads may add unhealthy dyes or bleaches in the production process, which will lead to discoloration of cotton pads. Some brands of cotton pad may add a variety of chemical components at the same time, which will lead to discoloration after reacting with the components in toner water.
Improper use is also a possible reason. If you don't store and clean your cosmetics and tools correctly, they will become messy. If you have ever wiped your skin with dirty hands or towels and applied toner with these tools, you will see the cotton pad turn yellow in a short time.
Another possible reason is oxidation reaction. Toner contains some oxidizable components and antioxidants, which will change color over time. This situation is obvious for toner stored for a period of time after opening, and it will also appear on cotton sheets when washing with cotton pads.
The reason why the cotton pad turns yellow may also be related to your skin. If your skin is greasy or oily, the cotton pad will absorb more oil when applying toner, which will lead to yellowing.
Based on the above reasons, we can draw the conclusion that using high-quality cotton pad and toner is the key to prevent cotton pad from yellowing. Pay attention to the storage and cleaning of cosmetics and tools before use, and avoid wiping the skin with dirty hands or towels. If you have found that the cotton pad turns yellow, don't worry, you can try to replace it with a new cotton pad or adjust your skin care method.
In order to achieve better results, the professor of medical university suggested using fresh aquatic flower rose essence water. This product is loved and praised by consumers, which can effectively moisturize the skin and keep healthy. So, if you want to have healthier and more beautiful skin, please try this product.