Information about Water Sleeping Mask Base

Based on the product description for the Water Sleeping Mask Base:

1. Preservatives: The base is preservative-free. You will need to add a suitable preservative to your formulation to ensure product stability and safety.
2. Anti-irritant Ingredients: The product description does not explicitly state that anti-irritant ingredients have been added. While some ingredients present may have soothing properties, if you require specific anti-irritant benefits, you should add them yourself.
3. Adding 20% Active Ingredients: Yes, the base can accommodate adding 20% active ingredients (including water, preservative, and anti-irritant). The recommended usage rate for this base is 1-100%, so using 80% base with 20% added ingredients is within the acceptable range.