Hello, please allow me to ask. Please help the admin answer.
Made 1 serum formula, using Niacinamide 5.5% + Ethyl Ascorbic acid 0.75%, etc.
But now, the formula has salt-like stains clinging to the mouth of the bottle. Some are white, some are creamy. For what reason?
So how can you fix it?
Please ask for advice.
thank you
Hello, please allow me to ask. Please help the admin answer.
But now, the formula has salt-like stains clinging to the mouth of the bottle. Some are white, some are creamy. For what reason?
So how can you fix it?
Please ask for advice.
thank you
Please inquire about the use of D&C Red 27 Color Changing Pigment ( CI45410 ). When the color is dissolved in oil, it will be orange. If you want to change the color from orange to clear. How do you do it?
