[Oph]

Hi Natasha

There are several ways to solve this problem:

If the desired result is colorless, colorless ingredients must be used. In a pinch, you can “bleach” a formula with a reducing agent such as sodium metabisulfite, but the collateral damage is that this tends to disrupt the molecules.

Another solution would be to mask the yellow with a specific color, which would allow you to not touch your surfactant system, your perfume or your preservatives - or whatever the responsible ingredient is.

Regarding TiO₂/ZnO, these are pigments, not dyes. They would cloud your formula, and without a solid suspending agent, they will sink to the bottom of your bottle within a few hours at most.

[Oph]

Good morning,

For what i know, there is no real difference between an Asian//EMEA shampoo.
I’d be a matter of coasts (lower in Europe for hair products) and regulation. Asia is more permissive.
But in term of chemistry, it’s basically the same

[Oph]

Hello !
I think you can remove the Coco-Glucoside, already added by the Lamesoft.
Also, what is your introduction order ? Sometimes there are anionic/cationic interactions and this can affect the effectiveness of your cationic agents.

[Oph]

Hi Still need help ?

[Oph]

Hello
I don’t know about the impact of Coco-Glucoside, but you already have it into the lamesoft, maybe it’s too much.
About the introduction order, i would make a different way : water + surfactant system into the main bulk, and cationic agents into annex bulks (Guar neutralized into 10% of water, same thing with PQ10. (don’t need to be neutralized, but stir it in 50°C water until clearness). Then introduct the annexes into your system.