Precipitate in Serum with Hydrolyzed Silk Protein

Based on the conversation, you have created a formula and observed a precipitate. Here is the information and guidance:

The formula you proposed is:

• Vitamin B3 (Niacinamide) 5%
• N-Acetyl Glucosamine (NAG) 5%
• Hydrolyzed Silk Protein 1%
• Double Hyaluron Liquid 5%
• Galactomyces Ferment Filtrate 34%
• Witch Hazel (Distilled - Alcohol Free) 50%

The precipitate is likely caused by the Hydrolyzed Silk Protein, which can become insoluble at certain pH values.

However, the formula is still usable and effective. You should shake the product well before each use.

If you want to remove the precipitate, you can filter it out. For commercial production or if you want the protein to dissolve, you can adjust the pH slightly using a mild base like Triethanolamine, adding it gradually while stirring until the protein dissolves.

Mixing: Generally, you can combine all ingredients into the water phase (Galactomyces Ferment Filtrate and Witch Hazel).

Preservative: The staff noted that an additional preservative might not be needed as Galactomyces Ferment Filtrate and Witch Hazel already contain preservatives due to their high concentration in the formula.

Relevant Product IDs: 74, 116, 995, 404, 357, 162, 139