[Formi]

PhilGeis said:

I did not see mention micro test on an expanded product.

You mean testing the finished product for microbes?

[Formi]

ketchito said:

@Formi If you have the chance, run some microbiological test on your Hydrolyzed silk. We identified often contamination of some batches of our hydrolyzed proteins, which are very sensitive to contamination, especially the ones poorly preserved.

This is extremely helpful thank you! 

[Formi]

Perry said:

Sounds like a job for the knockout experiment 

For sure! I’ve already started testing each of the ingredients and will get back with my results. So far I’ve found out that the current glycerin I use has a green tint and a strong odor compared to the one I got from another supplier which is weird, but i’ll see how it turns out two days from now and will update this thread.

[Formi]

Bill_Toge said:

are your samples very aerated at the point of filling?

if there’s enough of it, air being released from an aerated product could pressurise the container

No it’s not the filling method, the product is fine the first day but it then pours out of the container with a weird texture when I open it the day after. I’ve searched all over but can’t find an explanation. Maybe one of my ingredients is contaminated? I’m testing all of them this evening to see 

[Formi]

Abdullah said:

How much preservative are you using? 

Is your protein liquid or powder form? 

I use 0.5% germall plus and 0.5% hydrolyzed silk protein (liquid) 

[Formi]

Thank you @ketchito and @Perry : ) 
I tried the BTMS-50 recipe and it’s currently stable! I’ll also reduce the amount of glycerin in the formula as soon as I run out of my current batch.

[Formi]

lexi_dclabs said:

Hey there!

I hope you are doing well. 4C curly type here! BTMS-50 at 3-4% would definitely be a better option IMHO. Also, guar gum is fine, but I tend to lean more towards guar hydropropyltrimonium chloride. If you decide to try it, just make sure to adjust the pH below 7 after adding it to the water phase. I really like stearalkonium chloride in leave-in conditioners, especially for curly hair types. I hope this helps! 

Thank you so much! I also have 4c hair so this helps a lot. Will try the BTMS-50 formula this evening and see if there are any stability issues