If you make your own body butter and you have noticed a problem with your product turning into a liquid at warmer temperatures, then it is time to go back to the drawing board and tweak your recipe.
Whipped body butter is usually made from a combination of different oils that coat your skin to give it suppleness. Most oils have omega-3 fatty acids. These fatty acids can help your skin cells make healthy membranes, reduce inflammation, and promote healthy collagen.
Look at two different recipes, one for a solid bar of moisturizing soap, and one for a whipped butter that goes into a cosmetic jar. The bar is solid, the body butter is viscous—a consistency that is in between a liquid and a solid.
The solid bar uses an even balance of oils, butter, and wax: 3 oz. of beeswax, 3 oz. of cocoa butter, 3 oz. of shea butter, and 3 oz. of jojoba or another liquid oil. At room temperature, the bar is solid and melts at near skin temperature.
The body butter recipe is heavier on the shea butter and does not contain beeswax: 3 oz. of cocoa butter, 6 oz. of shea butter, and 3 oz. of jojoba or another liquid oil.
Why the Bar Does Not Melt
The main reason the bar does not melt is because of the beeswax. The beeswax has a much higher melting temperature. Combined with the oils, the bar has a higher melting temperature.
To reduce the body butter from liquifying, you need to reformulate your recipe to have a higher percentage of the hard oils or beeswax. You can add a higher percentage of cocoa butter or you can add some beeswax to the mix in order to raise the melting temperature of the product.
A downside of adding hard oil is that it is not going to melt as quickly on the skin, but it should at least hold its consistency a bit better in the container if the temperature spikes or if you apply body butter after a steamy bath or shower.
Shipping Body Butter
If you are selling your body butter formulation and have problems with shipping in the summer months due to the product arriving as a liquid, then you might need to reconsider shipping during the hot months. You can add emulsifiers, stabilizers, and other artificial ingredients to help the product remain solid, but at that point, the intrinsic value of having a homemade, quality ingredient body butter is lost at the sake of added chemicals.
Most reputable body butter sellers refuse to ship from May to September. The journey from their shop to the customer's door is too risky—hot trucks, hot warehouses, and hot front porches can all affect the integrity of the product. So they tell customers to stock up from October through April. And, if you are in the Southern Hemisphere, then the applicable months are reversed.
The Bottom Line
The bottom line is that you can add a higher percentage of hard oils or beeswax to help raise the melting temperature of the product, but there is a point where the meltability, or the smoothing on, of the product on the skin can get affected. At that point, it is not worth the risk shipping your natural product in the hot weather.