Bath Body Supply that your may want to try. What I found most interesting is the ingredient in this recipe was oat straw tincture. I never heard of oat straw tincture and did not know it existed and actually being used in a bath products recipe.
If you you want to see other receipes from Alison, check out her blog Design it Yourelf Skincare.
What you will need :
10 oz Sodium Bicarbonate (Baking Soda)
4 oz Citric Acid
2 oz Colloidal Oatmeal NF
5 ml (1 tsp) Fragrance Oil
1/2 oz Witch Hazel Distillate
1/2 oz Oat Straw, Tincture (Organic)
Fine Mist Sprayer & Bottle
Liquid Colorant, Mica or Herbal Powder
Soap Mold, Plastic Ornament Ball, Meatballer or Silicone Mini Muffin Pan
Phase 1: Sift Baking Soda, Colloidal oatmeal and Citric Acid together to get all the lumps out. Be sure and wear gloves, as the Citric Acid may burn and/or dry out your hands. (Work in a well-ventilated area.)
Phase 2: Add mica and/or herbal powder and mix it in. You'll notice that it seems to all disappear. When your finished bath fizzie hits the water, those additives come out in full force. If you are using liquid colorant, add one drop at a time to avoid setting off the fizz and mix thoroughly between drops until the intensity you desire is achieved.
Phase 3: Adding fragrance or essential oils should also be done by the drop. Once your scenting material is well blended, then it is time for the tricky part.
Phase 4: Combine the Witch Hazel and Oat Straw Extract in the bottle with fine mist sprayer and shake well to combine. Give the mixture a couple of sprays of Witch Hazel/Oat Straw. Be careful of adding too much. Once you add too much, there is no going back as it will set off the fizz. Spritz about 3 or 4 times and stir and spritz and stir, being careful not to over spritz before you stir.
Phase 5: When done, the mixture will stick to itself a bit when you pinch it between two fingers. Be very careful to not over-wet the mixture. Witch Hazel is good about not setting off the fizz, but if you give it too much it will destroy the batch. (Adding more of the powdered ingredients won't fix it.)
Carefully, but firmly press the mixture into the mold/ornament/meatballer. Leave the bath bombs in the molds for about 5 or 10 minutes, then flip the mold over and tap it out. They will be fragile at this stage, so work carefully.
Phase 6: Set the fizzies out in a dry place (or in an enclosed room containing a dehumidifier) until you need to wrap them or use them. Let them sit over night before attempting to wrap them up or package them for sale. When storing fizzies, be sure to put them in a very dry place. Some people put them in an oven with very low heat to dry them out well before packaging them. This is a good idea if you live in a very humid area.
FYI: Colloidal Oatmeal and Oat Straw Tincture are used extensively in "soothing" skincare products and are the basis for the well-known "Aveeno" line of products. The latin name for Oat Straw is Avena sativa.