niecie2k
Forum Replies Created
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Kaolin Clay, silica dimethyl silyate, silica microspheres…….any of these powders will do but don’t add too much. 1-2% at the very most.
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I have replaced PMS with nylon 12 and/or silica microspheres with good results.
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cetyl dimethicone or sepgel or one of the gel emulsifiers i.e., gelmaker Rheo, from making cosmetics. Not too much though or you’ll get pilling.
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I have had that exact same question for so long and still don’t have an answer. Not even just treated T.D., but things like magnesium stearate, boron nitride, serecite mica………..to grind or not to grind………that is the question.
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Well in my case, I’m having trouble holding the water in the stick. It precipitates right out so neither the stearic acid nor the emulsifiers are working here.
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This is for myself, friends & family. No sales here
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Would you know what % of TEA is needed to accomplish this?
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Thank you! I will keep that in mind for all my future formulating endeavors.
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Can I rob your brain for a minute? What would neutralizing the stearic do? Care to share some of that science with me?
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Hmmmm, doesn’t hurt to try! Thank u! I thought the LOW HLB emulsifiers would hold the water
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It is a stick in a deodorant tube that is meant to be rubbed on to painful areas (muscle strains) for relief. One has a preservative and the other doesn’t only because the water phase is so small, I wasn’t sure if I needed one. However, in my final, I will use a preservative. The water and magnesium are combined, heated and dissolved. The oils are all melted and heated and then the water is added just like an emulsion. Combined with stick emulsifier and preservative, essential oils added, then poured into the tubes to harden. Once solid, the water precipitates right out.
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Yes, the jury is still out on whether salicylic will be bioavailable at higher PH. I myself have used it at both 4 and 3 PH & find that it seems to work better at a lower PH.
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@Graillotion - Ah yes, L-Arginine. I believe that one is supposed to be good for the skin but probably not in the quantities I’d be using it to raise PH. Still, if I had the choice, its probably better for skin than EDTA or TEA I would guess. @toketsu yes, next time I will go higher on the PG. I would have rather not have neutralized it at all but the hyaluronic acid can’t seem to handle the low PH. It’s funny because I hear mixed things about S.A. Some say it is not at all PH dependent; others say it is. I thank you both for your kind comments!
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Absolutely valuable experience for me!! I was working on that one for week. I’ve often heard that whenever you use acids in a formulation, a chelating agent is a good idea. I used .17% in this one and when i saw it wasn’t doing much to raise the PH, I switched to TEA. Just 2 drops. It worked quite well. I think next time, I will still add both. So grateful for all the help and comments I received here! Thank you so much!
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Yes yes yes!!! I FINALLY figured this out. It was PH. I solved this by checking the PH of the water before I added the HA and making sure it was at least 3.5 and that worked. It took a heck of a lot of EDTA to get it up 1 point so i switched to a couple of drops of TEA which worked faster and then once the PH was 3.5, i added the HYA powder. Got a beautiful serum. Thanks all!
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Yes, in one of my trials I added edta to the water before heating
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Thank you to both. My first trials of this were with solution of HA. I still got the blob & decided to try the powder instead. As far as the PH, one of my first trials added edta to the water to raise the PH b4 adding the HYA but that didn’t make a difference either.
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Perfect. Will lower to 2%
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Been doing it for years and years. So far so good and this last formula was perfection!
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PS - thank you so much Graillotion, Raychemist and Squinny for your help, advice, contribution and time. It is just so wonderful that you all took of your time and your kindness to help me out and I learned something too! Can’t beat it! Have a “fantastical” week!!!!
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It is my understanding that this is a site for ANYONE who formulates and needs any type of help. I know Perry intends that they can come freely to discuss. I notice that there are many who behave “holier than thou” on this site-people who have degrees in the subject and feel that it’s ok to poo poo on those of us who don’t have that level of education. I see that often and it makes me sad because I do not believe that this is what Perry intended with this forum. I believe he wants all - kitchen formulators like myself and accomplished chemists alike, to feel free to come here and discuss any aspect of formulation and chemistry. I got some really great help on this one and actually solved my problem but that’s not the norm. I’ve seen some extremely condescending behavior multiple times. Those who want to be paid for their advice should go somewhere else as that is not the purpose of this forum.
Thank you so much for your advice and help! I really appreciate it. :0)
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But I’d still appreciate any comments you have ;0)
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Yes, the 2nd test was not grainy
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Sure
cyclomethicone6%5-GLIDE/WHITECAST AVOIDANCE WITH EVAPORATION
cetyl alcohol20%-HARDNESS
cetyl esters5%-THICKENING AND HARDNESS WITH EMOLLIENCY
Zinc Ricco-ODOR CONTROL
glyceryl stearate-EMUSLFICATION OF THE GLYCERIN & LACTIC
GLYCERIN6%-KEEPS STICK FROM GETTING DRY
LACTIC ACID6%-PROVIDES LOW PH WHEN COMBINED WITH SWEAT
c12-1510%-GLIDE & MOISTURE
zinc stearate1%-ADHESION TO SKIN
POLYHYDROXYSTEARIC ACID2%-FILM FORMER
isopropyl myristate3%-GLIDE/WHITECAST AVOIDANCE
lauryl laurate2%-DEPOSITION OF PRODUCT TO SKIN
alumin chlorohydrate15%-SWEAT AVOIDANCE
silica dimethyl silicate1%-KEEPS SKIN DRY
Mag hydroxide8%-I TOOK THIS OUT OF THE 2ND TEST AFTER Graillotion‘S COMMENTS AND IT WORKED FINE
oil lock powder8%-DRYNESS
preservative1%-I TOOK THIS OUT OF THE 2ND TEST AFTER Graillotion‘S COMMENTS AND IT WORKED FINE
ess oil1%-FRAGRANCE
ethylhexyl glycerin1%-EMOLLIENCY, SPREAD, DEODORANT ACTIVE -
Got it. You’re terrific!