Adding Ingredients to Lab Tester for Finished Cosmetic

Based on the conversation, you're asking what needs to be added to the lab-mixed tester (aloe vera base with sea kelp, green tea, and vitamin C) to make it a finished cosmetic product, specifically mentioning preservatives.

You are correct that a finished cosmetic product typically requires more than just the base and active ingredients. Preservatives are indeed a crucial component needed to prevent microbial growth and ensure the product is safe and has a reasonable shelf life.

Depending on the specific formulation and desired properties, other ingredients might also be necessary, such as stabilizers, pH adjusters, or other functional ingredients, to create a stable, effective, and pleasant-to-use finished product.

As the staff mentioned, the article they linked provides more detailed information on the various components that make up a finished cosmetic formulation.