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Xanhtam gum and LAA
Hello,
I used to make my own vitamin c serum with LAA (l-ascorbic acid) and plain distilled water, geogard 211 preservative (Benzyl alcohol, Dehydroacetic acid), disium EDTA and gse (grapefrtuit seed extract). It used to work fine, I’ve tested the ph and it was low but my skin is fine with it, being doing this for years, the tingling from LAA is there.
Now I decided to make it a little thicker and add xantham gum to it. It feels more luxury now that is thicker, ph the same but it feels like it does not abosorb by the skin, I do not feel any tingling anymore and it feels like a film and sitting on top. Is this possible? Should I leave it watery as it was?
Thank you in advance 🙂
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6 Replies
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How much xanthan gum have you used?
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Xanthan gum is never good sensorially. It is just to plain gummy. I never liked it and still do not understand its appeal with the newbie so-called “clean” beauty formulators. If you must use a gum resin, try sclerotium or cellulose. You will still have a film, it just feels more comfortable.
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Xantham gum 1%, I also have VIVASTAR® CS 142 HV (Hydroxypropyl Methylcellulose), not sure if it’s compatible with acids…. Google says it is “Hydroxypropyl methylcellulose (HPMC) is generally stable and soluble in aqueous solutions across a pH range of <mark style=”font-family: inherit; font-size: inherit;”>3 to 11</mark>.”
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1% xanthan gum is A LOT for a serum (1% is used in hair-gel). On top of that you added HPMC, so no wonder a film “sits” on your skin.
To find out the optimum %, experiment with your gums (separately) in plain water at different %s (I would start with 0.2%) and see how you like the feel and consistency of each resulting gel.
PS- LAA is HIGHLY unstable therefore degrades really FAST=> I’m just wondering how effective is your “serum” after a few days…
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I.did not add vivastar, i.asked as an alternative only.
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1. As previously said, even if you used only xanthan, 1% is A LOT.
2. My suggestion to experiment with the gums and plain water still stands.
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