Oats are excellent for the skin and their addition here makes for a superb soothing moisturizing bath soak. Plus, it brings an interesting alternative to your standard bath bomb.
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Sift the Bicarbonate of Soda into a good-sized container then add the ground oats to it. Gently melt the butter by giving it a few quick blasts in the microwave. Add the polysorbate and fragrance/essential oil to the melted butter.Mix the butter and oils into the bicarbonate of soda and ground oats. You may need to get your hands in to break up any lumps and give the whole thing a good old mix.Now it's time to add the citric acid, once again you may need to get your hands in to make sure everything is well combined. The mixture should be the consistency of slightly damp sand. If it is so dry that it does not hold together you will need to give it a couple of sprays with the witch hazel. Do be cautious here as you do not want to set the citric acid off by making the mixture damp.To get the oats embedded in the top of your bath bomb, simply throw a pinch of whole oats into the base of one-half of your bath bomb mold.
Then pack the mold with the bath bomb mixture, you need to pack it high and press it in firmly. Fill the other half of the mold in the same way, you do not need to add the oats to this half. Firmly press the two half molds together, if you have multiple molds you could leave them overnight until removed, this will give the bath bomb a little time to harden. Otherwise, carefully remove one half of the mold and then place the bath bomb onto a secure surface before removing the other half of the mold. You will want to remove half of your mold which does not have the oats in it first.leave the bath bomb to harden for at least twenty-four hours or until it's hard enough to be picked up without it falling apart. Although the bath bombs can be used immediately, I tend to give them another 24 hours for extra hardness.