water-free vit c serumHello! I’ve actually been thinking of formulating an anhydrous vitC
as a good antioxidant in the morning. Then I came across this post.
My formula is essentially quite similar. My “main” vehicle is
propanediol since it also acts as a penetrator (I forgot where I read
this but The Ordinary seem to use this a lot) and also according to this
post, it can dissolve l-ascorbic acid up to 17% concentration.Recipe:L- Ascorbic Acid powder - 15%Tocopherol - 1%Ferulic acid - 0.5%Propanediol - 83.5%Questions:1. Will everything mix together? Do I need to add something or do something like heating, if ever?
I know that the vitC and ferulic acid will dissolve in propanediol
because The Ordinary have products that have these, but i’m not entirely
sure about the tocopherol. I’ve done some digging and asking around but
I have not found any certain answers.2. Should I add preservatives? Since
this is anhydrous, I thought preservative would not be needed but I
would love some input on this. I only have phenoxyethanol though, if
that would help.3. Should I worry about pH? VitC
best performs at pH around 3.5 but those were for products/serums with
water in them, so I’m not sure if this would be a concern.4. Anything to add to enhance the penetration and absorption? I’m not really sure about this5. Anything else to improve or tweak with the formula? Any comment and suggestion would be lovely!Since
most of the ingredients are prone to heat, light, and oxidation, I do
plan to put it in an airless pump bottle covered with aluminum foil and
store it in the fridge. I think one more question for the product is its
efficacy, but I will be using it anyway, I’ll have to find that out
myself. If this won’t work, I plan to make a basic vitC serum using
water and baking soda as pH adjuster, as suggested by a youtuber.p.s.
i am from the philippines so i don’t really have access to suppliers.
There is craftology.ph to acquire *some* ingredients but they’re not
that extensivethanks in advance!