Using TXC™ (Cetyl Tranexamate HCl) in Formulations

Regarding your questions about using TXC™ (Cetyl Tranexamate HCl) in a cosmetic formula for sale:

1. Listing TXC™ in Ingredients: Yes, you can and generally should list TXC™ in your product's ingredient list. Cosmetic regulations typically require all ingredients to be listed. While TXC™ is known as a whitening substance, whether you can make specific whitening claims based on its inclusion depends on the overall formulation, the concentration used, and the specific regulations in the country where you are selling the product. Making claims usually requires substantiation and adherence to local cosmetic laws. Simply listing the ingredient is standard practice.
2. Effective Percentage for Melasma: For targeting melasma, which is often treated as a spot correction concern, the recommended usage rate for TXC™ is typically in the range of 3-5%. To minimize the risk of noticeable skin irritation while still aiming for effectiveness, you might consider starting at the lower end of this range, around 3%. It is crucial to test the formula on a small area of skin first to assess tolerance. Higher concentrations, up to 5%, may offer increased efficacy but also carry a higher risk of irritation, as noted in the product information.

Always ensure your formulation complies with local cosmetic regulations regarding ingredient listing and product claims.