Lip Balm Formula with SPF50 PA++++, Natural Base, and Easy Washability
คำถาม
Could you provide a formula for a lip balm that includes SPF50 PA++++ sunscreen?
I would like the sunscreen used to be washable with regular makeup remover (I've heard some sunscreens require special removers).
The other ingredients should be natural.
Thank you.
คำตอบ
Lip Balm Formula with SPF50 PA++++ and Natural Base
Creating a lip balm with SPF50 PA++++ requires incorporating effective sunscreen filters into a suitable base. To meet your requirements for easy washability with regular makeup remover and a natural base, we can focus on using natural waxes and oils combined with specific chemical sunscreen filters.
Chemical sunscreen filters are generally easier to wash off compared to physical filters like Zinc Oxide or Titanium Dioxide, which can be more resistant to removal.
Here is a guideline for creating such a lip balm, focusing on the types of ingredients you would need:
- Natural Wax: This provides the structure and hardness of the lip balm. A good option is Natural White Beeswax.
- Natural Oils/Butters: These add emollience and nourishment. Examples include shea butter, cocoa butter, or various plant oils.
- Emollient/Sunscreen Solubilizer: An ingredient like LipidSoft™ SPF can help effectively dissolve and incorporate chemical sunscreen filters into the oil/wax base, ensuring a smooth texture and potentially improving sunscreen performance.
- Chemical Sunscreen Filters: To achieve SPF50 PA++++, you will need a combination of high-performance, broad-spectrum chemical filters. These often include filters that protect against both UVA and UVB rays. Examples of effective filters found in high-SPF formulations include Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (Bemotrizinol), Ethylhexyl Triazone, and Butyl Methoxydibenzoylmethane (Avobenzone - often used with stabilizers). Achieving SPF50 PA++++ requires using these filters at specific, often high, concentrations, and the final SPF/PA value must be confirmed through testing.
General Formula Structure (Example):
- Combine Natural Wax (e.g., Natural White Beeswax) and Natural Oils/Butters. Heat gently until melted.
- In a separate container, combine LipidSoft™ SPF with the chosen chemical sunscreen filter(s). Stir to dissolve.
- Carefully add the sunscreen mixture to the melted wax and oil phase. Stir continuously.
- Add any other desired natural additives (e.g., Vitamin E for antioxidant properties).
- Pour the mixture into lip balm tubes or containers before it cools and hardens.
Important Considerations:
- Achieving a specific high SPF/PA level like SPF50 PA++++ requires precise formulation and laboratory testing to confirm efficacy.
- The total concentration of sunscreen filters needed will be significant.
- Ensure all ingredients are suitable for lip use.
By using a base of natural waxes and oils, incorporating an emollient like LipidSoft™ SPF, and selecting appropriate chemical sunscreen filters, you can create a lip balm that offers high sun protection and is easier to wash off than formulas relying heavily on physical blockers.