Using LHA (Capryloyl Salicylic Acid) in Body Lotion Formulation
Question
I would like to know about using LHA (Capryloyl Salicylic Acid) powder in a body lotion formulation:
1. Can LHA (Capryloyl Salicylic Acid) be mixed with natural oils such as apricot kernel oil or grapeseed oil? Will mixing it with these oils affect their beneficial properties?
2. How can I incorporate LHA (Capryloyl Salicylic Acid) powder into a simple body lotion formula? Specifically, in which phase (oil or water) should it be added, at what temperature should it be heated for dissolution, and what is the recommended usage percentage for a body lotion, considering potential skin irritation?
Answer
LHA for Body Lotion Formulation
Here is information regarding your questions about using LHA (Capryloyl Salicylic Acid) in a body lotion formulation:
1. Mixing LHA with Natural Oils
Yes, LHA can be mixed with natural oils such as apricot kernel oil or grapeseed oil. Mixing LHA with these oils will not destroy the beneficial properties of the oils. LHA (Capryloyl Salicylic Acid) is soluble in oil, and its acidic nature does not negatively interact with the chemical structure of the oils in a way that would degrade them.
2. Simple Body Lotion Formula with LHA
Incorporating LHA into a body lotion is straightforward. You would typically create your lotion base, which consists of an oil phase (containing your natural oils, emollients, etc.), a water phase, and an emulsifier to combine them.
To add LHA (Capryloyl Salicylic Acid) powder, you should mix it into the oil phase of your formulation. It requires heating to 70-80 degrees Celsius to help it dissolve completely in the oil. Once dissolved, you can proceed with your standard lotion-making process, combining the heated oil phase (with dissolved LHA) and the heated water phase using an emulsifier.
The recommended usage rate for Capryloyl Salicylic Acid is 0.5-5%, but it is strongly recommended not to exceed 2% to minimize skin irritation. For a body lotion, starting with a concentration between 0.5% and 1% is advisable, especially if you have sensitive skin.
Remember to follow good manufacturing practices and test the final product for stability and skin compatibility.
