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In a separate heat-proof beaker, mix the glycerine and xanthan gum until you have a smooth paste.
12.4 grams Glycerine, 1.6 grams Xanthan Gum
Add the water, to the gum paste, and stir until combined.
100 grams Distilled Water
The lauryl glucoside usually comes as a paste so we will need to melt it. We will also be warming our gum and water mix as we find they mix better when they are both warmed through. We can do this by placing both beckers into a shallow pan of simmering water, it should only take around 2 minutes to melt the lauryl glucoside and warm the gum water sufficiently. Once warmed and melted, remove both beakers from the heat.
Now it's time to add the gum water to our surfactant. Do this slowly and stir carefully to keep the bubbles at a minimum.
We need to let our shampoo cool to around 40c before adding our cool-down ingredients. Then we can stir in the panthenol followed by the hydrolyzed Silk. Stir until well combined.
We will need to protect our shampoo by adding a broad-spectrum preservative. Make sure you fully blend this into the shampoo. Finally, add the lemon and lime essential oils. Once again stirring after each one and trying not to create bubbles.
2 grams Preservative
Using a pH strip test the pH of the finished shampoo. We are looking for a pH of around 4 to 5. If it isn't and it most likely will not be you will need to adjust it. See instructions on how to adjust the PH.
You can make the shampoo more aesthetically pleasing by adding a drop of natural food coloring. This is completely optional.
When you are happy with the fished shampoo transfer to a suitable container.