[gmicca]

Try Sepimax Zen

[gmicca]

bil7 said:

I also make bht plus tocopherol plus also d panthenol some serum its same problem with discoloration but then i add litte SMBS and problems solve try out sodium metabisulfite 

Yup. I tried that, and it seems to be working. Hopefully, it’s the answer to my problems. thank you!

[gmicca]

khoikhoa said:

I will add vitamin E as antioxidant for some oils you are using

Oh yeah, I forgot to mention it there. I added 0.2% Tocopherol

[gmicca]

Thank you @EVchem, I will try knock out batches again. Now I am suspecting the preservative Euxyl K903. SFE 839 INCI is [Cyclopentasiloxane (and) Dimethicone (and) Dimethicone/Vinyl Dimethicone Crosspolymer]. In one of my formulations, discoloration happens in just 1 day at 50C. 

 

[gmicca]

UPDATE:
I tried adding BHT in lotion at 0.1% and there is still a bit of discoloration happened (turned light yellowish). Here is the full ingredients of the lotion:

Water 79.7
Glycerin 2.0
Betaine 2.0
Emulgade SE PF 4.0
Cetyl Alcohol 1.0
Cocoglycerides 3.0
Dimethicone 100cst 3.0
SFE 839 1.0
BHT 0.1
Avocado Oil 0.25
Grapeseed Oil 0.25
Sepimax Zen 0.35

Kombucha Extract 0.1
Centella Asiatica Extract 0.25
Aurafirm N 0.10
Sodium Hyaluronate 0.20
euxyl k903 0.80
Fragrance 0.40
Triethanolamine 0.20

Hoping someone can help me. Thanks!

[gmicca]

RawMaterialGirl said:

It’s the betaine - it’s a tertiary amine and is prone to discoloration. 

I have used betaine before and I didn’t have a problem with it. Do you think it reacts with another raw material I used?

[gmicca]

@johnb I can’t access the site

[gmicca]

I shared the “open letter” to my FB account. Hopefully some of my colleagues notice it. I am also in a difficult situation as I work in a RM distribution company. I share the same sentiments. The sales team have marketing strategies which I am strongly against with but I can’t do anything about it since I’m basically in the rank & file position. Although I’ve voiced out my opinions many times. I will take note of the do’s and don’ts I’ve learned from this post. Thank you very much!

[gmicca]

In Papaya, for example, I want to extract the papain and vitamin C. I know that these two are water-soluble. However, I want to use propylene glycol as solvent as it is I have easier access to it’s procurement than other solvents. Using water is more prone microbial growth. I appreciate your inputs.