Expired vitamin C can't be eaten, because vitamin C is a western medicine, which will be oxidized beyond the validity period, resulting in certain mildew, which may lead to food poisoning or allergies.

How to use expired vitamin c:

1, soaking feet with expired vitamin C can soften the cuticle of feet and make the skin of feet more delicate;

2. Soaking hands with expired vitamin C can cope with seasonal palm peeling;

3, use expired vitamin C as a mask, which has whitening and antioxidant effects.