General Mixing Considerations for TXC Hydro White Concentrate Ingredients

Based on the information available for the ingredients you mentioned, here are some general considerations regarding their properties and typical mixing methods in cosmetic formulations:

• Complex Salicylic Acid (Powder, Water-Soluble): This ingredient (Product ID: 2014) is water-soluble and can be dissolved in the water portion of a formula. It can withstand temperatures up to 80°C. Ingredients with these properties are often incorporated into the water phase during the formulation process.

• TXC™ (Cetyl Tranexamate HCl): This ingredient (Product ID: 2279) is not soluble in water but is soluble in glycols or oils, often requiring gentle heating (60-80°C) to dissolve. It is typically dissolved in a suitable solvent (like propylene glycol or butylene glycol) separately and then added to the main formula.

Regarding your specific questions about the "TXC Hydro White Concentrate" recipe you are following, including why Complex Salicylic Acid is added in the final part, why ingredient #8 is added twice, and when to add ingredient #19, I cannot provide a definitive answer. I do not have access to the specific recipe document or the numbered list of ingredients from the URL you provided. Formulation steps and ingredient numbering are unique to each specific recipe.

Generally, the order of adding ingredients in a cosmetic formulation is determined by factors such as:

• Solubility: Whether an ingredient dissolves in water, oil, or requires a specific solvent.
• Heat Sensitivity: Ingredients that degrade or lose efficacy at high temperatures are added during the cooling phase.
• Compatibility: Ensuring ingredients are compatible with each other to avoid undesirable reactions or instability.
• Function: Some ingredients, like thickeners or pH adjusters, are added at specific points to achieve the desired texture or stability.

To understand the precise mixing steps for the "TXC Hydro White Concentrate" recipe you have, please refer directly to the detailed instructions provided with that specific formulation. Without access to that document, I cannot confirm the reasons for the specific steps you described.