Adding Tris-Biphenyl Triazine (Nano) or Zinc Oxide to Boost Sunscreen SPF/PA

Based on the staff's reply, you can add Tris-Biphenyl Triazine (Nano) to your formula.

Here is a summary of the properties and considerations:

• Can it be added? Yes, adding Tris-Biphenyl Triazine (Nano) to this formula is possible.
• Effect on PA/SPF: Adding it will increase the overall PA (UVA protection) and SPF (UVB protection) values.
• Exact PA/SPF value: The precise level of PA or SPF achieved after adding it would require laboratory measurement.
• Alternative for PA: If your primary goal is to significantly increase the PA value more economically, the staff recommends using Zinc Oxide 35nm Liquid instead, as Tris-Biphenyl Triazine (Nano) boosts both UVA and UVB protection.