

FAQ (Frequently Asked Questions)
1. What is Sodium Ascorbyl Phosphate?
Sodium Ascorbyl Phosphate (SAP) is a stable, water-soluble derivative of Vitamin C (ascorbic acid). It functions as a potent antioxidant in cosmetic formulations, offering benefits such as skin brightening, collagen synthesis stimulation, and protection against environmental stressors.
2. What are the CAS Number and INCI Name of Sodium Ascorbyl Phosphate?
CAS Number: 66170-10-3
INCI Name: Sodium Ascorbyl Phosphate
These identifiers ensure consistency and compliance in cosmetic ingredient listings.
3. What are the benefits of using Sodium Ascorbyl Phosphate in personal care products?
Antioxidant Protection: Neutralizes free radicals, reducing oxidative stress and preventing premature skin aging.
Skin Brightening: Inhibits melanin production, helping to fade hyperpigmentation and even out skin tone.
Collagen Synthesis: Stimulates collagen production, enhancing skin firmness and elasticity.
Anti-Inflammatory: Soothes irritated skin and reduces redness, beneficial for sensitive or acne-prone skin.
Antimicrobial Properties: Exhibits antibacterial effects, aiding in acne prevention and treatment.
4. What are the common applications of Sodium Ascorbyl Phosphate in personal care?
SAP is utilized in various skincare formulations, including:
Serums and Moisturizers: For brightening and anti-aging effects.
Acne Treatments: To leverage its antimicrobial and anti-inflammatory properties.
Sunscreens: Enhances photoprotection when combined with UV filters.
Skin Lightening Products: Targets hyperpigmentation and uneven skin tone.
After-Sun Care: Soothes and repairs UV-induced skin damage.
5. Is Sodium Ascorbyl Phosphate safe for use in personal care products?
Yes, SAP is generally considered safe for topical application. It is well-tolerated by most skin types, including sensitive skin, due to its gentle nature and stability compared to other forms of Vitamin C.
6. Can Sodium Ascorbyl Phosphate cause skin irritation?
SAP is less likely to cause irritation than pure ascorbic acid. However, as with any skincare ingredient, some individuals may experience mild irritation or allergic reactions. It is recommended to perform a patch test before widespread use.
7. Is Sodium Ascorbyl Phosphate environmentally friendly?
SAP is a synthetic derivative of Vitamin C. While it is more stable and has a longer shelf life, its environmental impact is comparable to other synthetic cosmetic ingredients. Efforts are ongoing to develop more sustainable and biodegradable alternatives in the industry.
8. Are there alternatives to Sodium Ascorbyl Phosphate in personal care products?
Yes, alternatives include:
Ascorbic Acid: Pure Vitamin C, highly effective but less stable.
Magnesium Ascorbyl Phosphate: Another stable, water-soluble Vitamin C derivative.
Tetrahexyldecyl Ascorbate: An oil-soluble form of Vitamin C, suitable for oil-based formulations.