Adding DHHB for UVA Protection and Solubility Requirements
Asked by: emotion_23
On: July 05, 2018
Product Type:
Cosmetics
Question
I want to add DHHB (Diethylamino Hydroxybenzoyl Hexyl Benzoate) to my formula to increase UVA protection and improve the PA value.
However, I understand that DHHB is difficult to dissolve. Could you please provide information on:
- How to ensure DHHB dissolves effectively?
- What solvents are suitable for dissolving DHHB?
- What are the maximum solubility percentages of DHHB in these solvents, such as:
- Octocrylene
- OMC (Octyl Methoxycinnamate)
- Homosalate
- Octisalate (Ethylhexyl Salicylate / Octyl Salicylate)
- LipidSoft
Answer
Based on the staff's reply, you can mix DHHB (Diethylamino Hydroxybenzoyl Hexyl Benzoate) with your formula to help increase UVA protection and improve the PA value.
However, DHHB is difficult to dissolve, so your formula must include a solvent for DHHB to ensure it dissolves and is effective.
The staff provided the following solubility information for DHHB in various solvents:
- Maximum 39% in Octocrylene
- Maximum 39% in OMC (Octyl Methoxycinnamate)
- Maximum 36% in Homosalate
- Maximum 30% in Octisalate (Ethylhexyl Salicylate / Octyl Salicylate)
- Maximum 23% in LipidSoft
Therefore, when adding DHHB to your formula, you will also need to include one of these solvents.
