here's a very basic c serum
1/4 teaspoon vit C
1/4 teaspoon glycerin
1 + 1/2 teaspoons distilled water
You must disolvce the Ascorbic Acid in a small glass ( shot type glass is good) in room temp water. It will takes FOREVER. If you can't stand it then you can stand the small glass in a larger glass of warm water, NOT hot. Heat destroys vit c. Do NOT be tempted to blitz in the microwave. be patient it will dissolve.The gylcerin gives a nice texture.
This next recipe is a little more complicated but not at all hard id that makes sense, you just need more ingredients. These are very easily obtained on a site called "active formulas" they cater for all diy stuff. It is worth doing. Once you have the basics you can keep on making you own fresh, potent batches. I made the following recipe yesterday and it has a wonderful thick serum texture and is silky smooth. You get a very powerful serum for a fraction of the price SE charges.
This is courtesy of a member called kassey on eds forum.
15% C,E + FA with HA
1 tsp L-Ascorbic Acid
3 tsp Distilled H2O
1 tsp SKB
1 tsp Glycerin
1/4 tsp Ferulic Acid
1/4 tsp vodka
1/8 tsp Vitamin E or Rosehip Oil
1/2 tsp Hyaluronic Acid Serum (NCN has a really nice 2oz serum, that is compatible with this recipe, and is also great for an LED serum)
Use 2 little glasses.
Phase 1 glass (water)
Put L-AA in glass, add water, stir frequently and let it fully dissolve. Depending where you buy it, that can take up to an hour.. (If, and only if, after 60 minutes it's still gritty, you can sit the glass in a warm water bath for a minute, and stir, stir, stir.
Phase 2 glass (oil/emulsifying)
While you are waiting for the L-AA to dissolve, you can proceed with the rest like so. Put the FA in the 2nd glass, pour the vodka in and stir, now add the SKB. Mix this together, and put it in the microwave for 6ish seconds. When you take it out it should be whitish and serumy.. Give it a stir, add the oil and stir + add the glycerin and stir..
Phase 3 (putting it all together)
When the L-AA has fully dissolved, add the contents of both glasses together, stir well, and add the HA in now and stir well..
You should have an opaque off white serum when you are finished, with a consistency similar to a syrup (minus the stickiness Laughing ) If you use Rosehip Oil, you will start off with a bit darker colour (great oil though!)
For anyone that is using an HA powder, you will 1st have to make it into a liquid, or it will just ball up..
Please don't be tempted to add more L-AA.. It will only wind up in your toilet bowl. Our skin can only absorb so much. Besides, it will give you a load of grief trying to dissolve it.
As I said this makes a fantastic serum. it isn't hard, honest.