Forgive me if this is a dumb question but I just bought the cosrx vitamin c serum and it came with a separate dropper cap in the box. I used the dropper cap yesterday but I wasn’t sure if I have to remove the dropper cap every time I use the serum and put the original cap it came with or do I just leave the dropper cap on all the time now? Can someone please let me know.
by artucen12321
1 Comment
The dropper cap is now your permanent cap.