DIY Vitamin C Serum


Beauty expert Christine Cho shares a DIY recipe for vitamin C serum that will aid your skin in the fight against aging!

Image of a small dark glass bottle with an orange wedge beside it



  1. Make sure your glass bottle is sterile by boiling it in some hot water. You can also sterilize it with some rubbing alcohol.
  2. Wait for the bottle to cool and dry completely.
  3. Add the l-ascorbic acid to the bottle.
  4. Add the distilled water.
  5. Swish around the bottle or use a stirrer until all the l-ascorbic acid is dissolved.
  6. Add the propylene glycol or glycerin (must be vegetable glycerin, however you can use Monistat Anti-Chafing gel if your skin is fine with silicones).
  7. Mix well (cap the bottle and keep shaking until everything is blended or use a stirrer) and use up as early as possible.

You want to use a dark bottle because it prevents the l-ascorbic powder from oxidizing. L-ascorbic powder is destabilized when it reacts with light and/or heat, so store your homemade C serum in a cool, dark place.

Mix well and use up the C serum as early as possible because l-ascorbic acid is highly unstable. Make a new batch every few days because as time goes on, the l-ascorbic acid grows less potent. Make sure the l-ascorbic acid you buy is 100 per cent with no additional ingredients. You can buy powder or crystals (from the vitamin section in your local health food store), but Christine likes to use powder because it dissolves faster. Sometimes vitamin C will just list "ascorbic acid" as its ingredient. If this is the case, call the company to see whether or not it's l-ascorbic acid. Also, make sure there are no unnecessary ingredients in the vitamin C capsules you buy (such as sweeteners, rose hip oils, etc).

If you find this percentage of vitamin C to be too irritating, you can always add less l-ascorbic acid. If it's not strong enough, you can add more, but don't go over 20 per cent.