Clot S [serti Crust In Serum Vitamin C?
Hello, yesterday I just bought a vitamin C serum and I kept my lgsg in the refrigerator (not in the freezer), then when I wanted to use it there was a white crust-like lump that formed around the lid of the serum bottle. What happened to that vitamin C serum? Do you think this is normal and is it still safe to use the serum? (Before this serum was stored in the refrigerator, I had opened the bottle and shook it)
Vitamin C is a water-soluble vitamin. Vitamin C products in the form of serum in storage must be considered, and have special treatment so that they do not easily react with outside air or heat and are not easily oxidized. Storage of vitamin C does not have to be in the refrigerator, the most important thing is that storage should be stored in a tightly closed container, away from direct sunlight, preferably in a dark place for example:
in a drawer in a box in a pouch. What needs to be considered is to avoid exposure to direct sunlight, hot or humid temperatures. The oxidation of vitamin C is accelerated by the influence of the concentration of acids, PH, oxygen, light, metal ions, heat.
What you need to also recognize is whether the serum has started to experience damage / oxidation if there are the following characteristics, namely if there is a change in the color of the serum or the color turns brown, or if the serum was deposited in liquid or liquid form, or if there is a change in the smell of the smell when early. If only white crust is formed around the edge of the serum bottle, it is still normal because the drying of the serum around the lid of the serum bottle only, as long as there is no change in color, shape or smell, it is still good to use the serum. Don't forget to pay attention to the expiration date of using the serum too. Following the article you can read oxidized vit C serum.
hopefully useful, thank you