FDA Registration and pH Adjustment for Stabilized Vitamin C Serum
Question
Can Stabilized Vitamin C (Natural-C Glycol™) Serum be registered with the FDA as a finished product? If the pH is too low according to regulations, how can it be adjusted without affecting the ingredient's stability?
Answer
FDA Registration for Stabilized Vitamin C (Natural-C Glycol™) Serum
Yes, the Stabilized Vitamin C (Natural-C Glycol™) Serum is suitable for registration with the FDA as a ready-made finished product.
pH Adjustment for FDA Compliance
The typical pH range for this product is 2-3. However, FDA regulations for cosmetic products require a pH of at least 3.5.
Therefore, you must adjust the pH of the serum to at least 3.5 to comply with FDA requirements for registration.
Maintaining Stability During pH Adjustment
The product description notes that adding additional ingredients is generally not recommended as it may affect the stability of the vitamin C. If you need to adjust the pH, it is crucial to do so carefully to minimize any potential impact on the stability of the stabilized vitamin C. While the description doesn't specify the exact method for pH adjustment without affecting stability, the general caution about adding ingredients suggests that standard pH adjusters should be used with care, or it might be beneficial to consult with the supplier's R&D team, especially if adding buffering agents or other substances to modify the pH.
