Abdullah
Forum Replies Created
-
If your batch is not so big, you can make another batch without fragrance and mix them.
Although i advise to always use 0.2% xanthan gun for viscosity and stability
-
How much fragrance and that preservative is in your formula and what is the pH? That preservative and fragrance both reduce viscosity.
I use 0.005% fragrance in my lotions and it smell very well. You don’t need to add high amount of fragrance in a leave on emulsion.
For this batch you can add 0.2% xanthan gun in 1 or 2% glycerin and mix it with high shear mixer. Also add a preservative for fungi too.
-
I am not using NACL to increase viscosity In these samples to see separation faster. With higher viscosity precipitation takes afew days.
-
I did use the search bar and did everything advised there. Didn’t solve the problem.
Actually the precipitation was in shampoo with SLES: CAPB 14:2 active surfactant pH 5.
I did try different methods. Non of them worked.
1. Adding cationic guar to 25% water, add citric acid, viscosity and clarity increased, mixed for 20 minutes, added CAPB, EDTA, SLES.
2. Added SLES CAPB EDTA citric acid to water, pH 5, mixed cationic guar with 1% fragrance or 1% glycerin, then added it at the end and high shear mixing. Next day it has precipitated.
It doesn’t have fish eye or anything
????
-
Could it that 20 minutes mixing is not enough for gum hydration and need more time?
-
-
My 10% SLS power needs 16% of a 50% citric acid solution to reduce the pH to 5.5. how much citric acid did you use?
-
Is it water thin?
-
Add some EDTA
-
0.05% EDTA would increase the viscosity a bit.
Use this preservative at 1% of total formula. Not 1% of water phase.
I would also recommend CMI or dmdm hydantoin
-
pH 7 is good too.
It is active surfactant.
You will use it once a month, not everyday and it is clarifying shampoo, it has to be a bit Strong.
-
I would increase total anionic surfactants
Like
5% AOS
3% sci
6% glutamate
2% amphoteric
pH ~6
pH 8 is not good
-
Just use some SLS, SLES or AOS because you are using it less often or increase sci and glutamate and decrease amphoterics in your current formula
-
@Perry44 hi
I receive this message to slow down???? when i comment in a discussion i have created recently. What can be the cause?
-
Aslo previously i was purchasing from another supplier, its color was aslo more yellow. This one i have purchased from a bigger manufacturer and at lower price, the color is also lighter, viscosity also a bit less.
Could it be that this product is bad or have problem?
-
By all the water you mean at least how much water?
My SLES is 23.3% active so i use 60% of it, 6.6% CAPB, 7% NACL 20% and only ~24% water is free at first for cationic guar
-
I will try adding EDTA first and see.
I have made different batches with different pH and all precipitated.
1. Reduce the pH to with 0.05% lactic acid 85 solution, that was final pH too
2. Reduces pH to 3.8 with 0.6% citric acid 50%, and at the end adjusted to pH 5 with 0.4% caustic soda 20%.
3. Reduces pH to 3.8 with 0.6% citric acid 50%, and at the end adjusted to pH 5 with 0.3% SLS power dissolved in 3% water.
-
@Paprik how did you solve your problem? Looks like they are the same
-
No, i was only mixing for 5 minutes before adding acid. What will 20 minutes mixing at this stage do?
Also i was using high shear only that the end after adding all surfactants.
Do you suggest i use high shear only after adding acid be before it too?
-
@DavidW where can i find this information?
-
You forgot to mention @Pharma
-
Surprisingly ???? i use jojoba oil to reduce my skin oiliness. Specially on nose and it reduces oil production very well.
-
Your surfactants also have water
-
Same thing has happened with dimethiconol TEA DDBSA emulsion instead of amodimethicone emulsion.
-
Same formula without amodimethicone and EGDS is stable with this amount of NACL.
-
Of course you can add it. Your formula problem might be something else.