Now that you have a handle on melt and pour soap making and have done your research, it’s time to develop your own product line. Gather your notes and inspiration boards and start creating. Keep in mind who your target audience is as you go; you want to make sure you’re making a soap product that they will be eager to purchase.
Order supplies and samples
Start testing and craft your ideas into actual products. It’s a good time to test different soap bases, fragrance oils, silicone molds, and work out any issues you might encounter. Don’t be afraid to try different variations of your ideas to see what you like best. Take notes so you can reference adjustments you make and what did and didn’t work.
Keep sanitation in mind
As you are developing make sure you keep in mind the actual process of soap making. There are sanitary practices you need to follow, called good manufacturing practices (GMP). It’s a good idea to educate yourself on these practices so you can work them into your process from the beginning. The FDA lays out GMP here: Good Manufacturing Practices (GMP) Guidelines/Inspections Checklist for Cosmetics
This book by Marie Gale is a good read on the topic: Good Manufacturing Practices for Soap and Cosmetic Handcrafters by Marie Gale