Cosmetics Formulation Development

Mix inquiry Wrinkle-Fill™ (Acety L-Tyrosine ) Can be mixed in which phase to produce the cream? Just on the page it says that it can be dissolved in water. But I don't know if it can withstand the heat or not.

In front of "Technique". Physical appearance: white powder. Storage: 5-15C. Keep in refrigerator. Close lid tightly. Shelf life: 24 months from production date or test date (current lot, expiration 06/2021). Usage rate: 1% - 2% Recommended usage rate: 2% Research/development: USA Method/mixture: Mix in water. Avoid heat above 60°C. Heat resistance: Do not expose to heat above 60°C Suitable pH range: 3 - 6.5 Solubility: Water soluble Suitable for: creams, lotions, clear gels, toners, masks. A INCI: Acetyl Tyrosine

If you put it on during the cool down phase, it will melt as well, right?

During the cool down phase, the temperature of the solution at that time must not exceed 60 degrees Celsius. And there must be water as a destroyer.