Nearly all natural beauty product recipes that I post will use the following ingredients. Click on the picture to get pricing information and more information about each product.
Look for heat resistant glass bowls. You'll want a variety of sizes, but make sure you have two small bowls and at least one medium bowl. Glass works best because chemicals in plastic can leech in to your recipes. Also, some ingredients can react with metal, so avoid using metal.
Stainless Steel Saucepan
You will want to avoid aluminum because some herbs and ingredients can react with the metal. Stainless steel is an affordable option that will be safe for making your natural beauty recipes. Make sure it is big enough to hold a glass bowl to make a double boiler.
Most recipes call for a double boiler. If you don't have one, you can make one with a heat resistant glass bowl sitting on a trivet in a medium or large saucepan. If you plan to melt beeswax or butters often, then consider a double boiler because it is easier to use.
You'll want to use wooden utensils because plastic can melt and leech chemicals in to your concoctions.
You'll use this to grind herbs and other ingredients. I find that this is a necessary tool and works better than a food processor or blender. You may also find that a dedicated coffee grinder and blender will be helpful for other ingredients.
You don't need to buy all of these when you get started. I didn't get a double boiler until I knew that I would be making my own recipes often. You may already have some of the tools, and you can reuse them. Since you are not using chemicals, it is generally safe to use the tools you use to prepare food. Use your best judgement because some ingredients are safe for topical use but are harmful when ingested.