Recommendations for Vitamin C for Face

Claudie wrote: mommykat wrote: Claudie wrote: Once water is in a mix, I am not an advocate of not using a preservative.  Unless the product is used within 2 days.  There are other ingredients more powerful than Vitamin C, and yield faster and better results.  My two favourite ingredients are Pycnogenol and Matrixyl. Indeed, I use Phenoxyethanol (a few drops as a preservative)... However the SKB / Sea Kelp Bioferment also has the same ^^ preservative The SKB has a preservative already so I use the same one just a few drops... Okay, do not use more  percentage of a preservative for the amount of your batch.  Too much preservative in a batch, is as dangerous as too little .  Keep in mind the percentage of preservative in an ingredient, is only enough to preserve the ingredient

This is why I love BHM… OK… bring out the… NERD…
I use this formula C1V1=C2V2 or C1 x V1 = C2 x V2
C = Concentration
V = Volume to find the percentage that I want to make for the week.
On a lazy day, I like to use a percentage calculator--
http://skinessentialactives.blogspot.co.uk/p/percentage-calculator.html

or a batch calculator. http://www.wholesalesuppliesplus.com/Calculators/Batch_Size_Calculator.aspx


Most of the time my preservative is @ 1 percent or less out of 100. Because each item(s) that I make… the Total Batch Volume has to be 100%.
Much Love MK…

Vitamin e acts as a preservative too. 

I have some 70,000 iu vit E that I plan to mix with my serum. 

oh great!

MommyKat/fellow NERD: how much of a 70,000 iu Vit E should I use if I'm making the mix using measurements in Honey's post? (1/4 tsp L-acid)

I had a high IU vit e and I noticed that it broke my skin out in itchy little bumps..

Now I use a lower dosage and make sure it's the natural form of vit e and it doesn't break me out. I am able to drink it too...