Necessity of Protec™ UV in Homemade Skin Gel with Light-Sensitive Ingredients

Based on your question and the information provided by the staff, I would like to add the following summary based on the details you shared.

Since you are making the skin gel for personal use, packaging it in a dark pump bottle, and storing it in a low-light area, according to the staff's advice, you do not need to add Protec™ UV.

The reasons are:

• Personal Use: Products made for personal use are generally used up within a relatively short period. The stability of the ingredients under the storage conditions you mentioned (dark bottle, low light) is considered sufficient for personal use.
• Packaging and Storage: The dark pump bottle helps significantly reduce the amount of light penetration, and storing it in a low-light area further enhances light protection for light-sensitive ingredients like Encapsulated Retinol and Pure-EGCG™.

Protec™ UV becomes more necessary when the product is manufactured for sale and may face various light conditions during transport, storage, or display, as well as when the packaging is not sufficiently opaque or does not have an opaque paper box wrapping.

Therefore, in your case, making it for personal use, packaging in a dark bottle, and storing in low light, you do not need to worry about adding Protec™ UV.