Dissolving LHA Powder in Oil for Formulation
Question
How to dissolve Capryloyl Salicylic Acid (LHA) Powder at 0.5%?
- Which oil should be used?
- What amount of oil is needed for complete dissolution?
Answer
Dissolving Capryloyl Salicylic Acid (LHA) Powder at 0.5%
To dissolve Capryloyl Salicylic Acid (LHA) Powder at a concentration of 0.5%, you should mix it into the oil phase of your formulation.
- Suitable Oil: You can use an oil like Caprylic/Capric Triglyceride (e.q. Myritol 318), which is a good emollient and compatible with LHA.
- Dissolution Method: Add the LHA powder to the oil phase and heat the mixture to 70-80°C while stirring to help it dissolve completely.
- Amount of Oil: The amount of oil needed is not a fixed ratio just for dissolving the LHA. You should incorporate the 0.5% LHA into the total oil phase required for your specific formulation. The LHA will dissolve within that oil phase when heated properly.
Remember to follow your overall formulation steps, incorporating this heated oil phase into your emulsion or anhydrous product as appropriate.
Follow-up Replies
Question:
I have a formulation where the oil phase only contains the ingredient needed to dissolve `LHA 0.5%`. I am unsure what percentage of the oil phase is required to dissolve the `LHA 0.5%` completely.
Answer:
Dissolving Capryloyl Salicylic Acid (LHA) Powder at 0.5%
Regarding your question about the amount of oil needed specifically to dissolve 0.5% Capryloyl Salicylic Acid (LHA) Powder, there isn't a fixed minimum percentage of oil required just for dissolving the LHA itself.
Capryloyl Salicylic Acid (LHA) Powder dissolves in the oil phase when heated to 70-80°C. The 0.5% LHA will dissolve within whatever total percentage of oil phase you decide to use in your formulation, provided you heat it sufficiently.
The total amount of the oil phase in your formula (using an oil like Caprylic/Capric Triglyceride) is determined by the desired texture and feel of your final product, not by the dissolution requirement of 0.5% LHA. For example, a light lotion might have an oil phase of 5-10%, while a richer cream could have 15-30% or more. The LHA will dissolve in any of these percentages when heated.
So, focus on determining the total oil phase percentage needed for your desired product type, and dissolve the 0.5% LHA within that oil phase by heating.
