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A little at a time drizzle in the distilled water, stirring well after each deposit. Once all the water has been added, set to one side to thicken. This can take around 30mins. If your water hasn't thickened or to quicken the process up you can warm it up to around 65c (149f). I find placing the beaker in a pan of simmering water, or giving a gentle heat in the microwave for a few seconds stirring and repeating also works well. Once the water has reached 65c (149f) leave it to cool and thicken before moving on to the next step.
86 grams Distilled Water
Whilst the water is thickening in a separate small container, combine the glucosides together. Although they will need stirring this needs to be done gently so as not to create too many bubbles.
4.4 grams Decyl Glucoside, 3 grams Coco Glucoside
Once the water has been thickened with the gum. We can add the glucosides to it. Once again careful stirring.
Next add the preservative and continue with the stirring until you are sure that it's fully combined.
1 gram Preservative
Now its time to check the pH of the cleanser. Dilute a small sample of the cleanser (1 part cleanser to 9 parts distilled water). Dip a pH strip into the diluted sample and check it reads pH 5.0–5.5.
If the pH is too high, add a couple of drops of a 10% citric acid solution to the main batch of cleanser and stir gently until fully combined. I found mine was around 5.5 to 6 so I added around 4 drops just to be sure it was closer to 5 rather than 6. Test again and repeat if needed until the pH is 5.0–5.5.
Once the cleanser is at a suitable pH level, transfer the cleanser to a suitable bottle. A pump bottle is the best for this cleanser. Unfortunately we did not have one so we went with a tube container and used a slow steady pour.