Emulsifying Isohexadecane with Water Capsule vs LipidSoft

Based on the information provided, it seems the issue you encountered when replacing LipidSoft with Isohexadecane in your formulation using Water Capsule is related to the different emulsification properties of these emollients.

• Different Emollients, Different Behavior: Not all emollients (oils) are emulsified equally easily by a given emulsifier. Hydrocarbons like Isohexadecane can sometimes be more challenging to emulsify compared to other types of emollients like LipidSoft.
• Water Capsule's Capacity: Water Capsule is designed to emulsify oils, typically up to around 25% of the total formula. However, this capacity can vary depending on the specific oil being used. Some oils might be emulsified more efficiently, allowing for higher oil percentages, while others might be harder to emulsify, potentially requiring a lower oil percentage or different mixing techniques to achieve a stable cream.
• Isohexadecane vs. LipidSoft: It is likely that Isohexadecane is harder to emulsify with Water Capsule than LipidSoft. When you used Isohexadecane at 15%, it might have exceeded the effective emulsification capacity of Water Capsule for that specific emollient under your formulation conditions, resulting in the mixture not forming a stable cream.

Therefore, Water Capsule can likely be used with Isohexadecane, but the optimal concentration and mixing method might differ compared to using LipidSoft. Some emollients might indeed be less compatible or require specific conditions when used with Water Capsule due to their chemical structure and interaction with the emulsifier.