DHHB Solubility in LipidSoft Solve and LipidSoft DS Blend

Yes, it is highly likely that 3% DHHB can be dissolved in a formula containing 4% LipidSoft™ Solve and 14% LipidSoft™ DS.

Here's why:

• DHHB is an oil-soluble sunscreen ingredient that requires heat to dissolve.
• LipidSoft™ Solve is a highly-polar ester known for its excellent ability to dissolve oil-soluble actives and UV filters.
• LipidSoft™ DS (Diisopropyl Sebacate) is specifically described as a lightweight emollient ester that is very popular in sunscreen formulas due to its ability to dissolve sunscreens well.

The combined concentration of LipidSoft™ Solve and LipidSoft™ DS in your formula is 18%, which is significantly higher than the 3% concentration of DHHB you wish to dissolve. Based on the properties of these emollients and the general solubility information for DHHB in LipidSoft (up to 23%), 3% DHHB should be well within the solubility limits of this solvent system. Remember to use heat (around 80°C) and mix well to ensure complete dissolution of the DHHB powder.