High Quality Skin Whitening Powder Sodium Ascorbyl Phosphate

Sodium Ascorbyl Phosphate is a water-soluble cosmetic whitening additive. After transdermal absorption, it can effectively resist ultraviolet damage, and capture free radicals. Also it can promote collagen production. It has anti-oxidation and anti-aging effect. Moreover, SAP can effectively prevent pigmentation; it helps to eliminate skin spots, such as freckles and age spots. In addition, Sodium Ascorbyl Phosphate has a therapeutic effect on facial acne and pimple.

Product Name	CAS Number	INCI Name
Sodium Ascorbyl Phosphate	66170-10-3	SODIUM ASCORBYL PHOSPHATE
Molecular Weight	Molecular Formula	Molecular Structure
322.05g/mol	C6H6Na3O9P
Product ID	Specificcation	Minimal Package	Minimal Order Quantity
BFSTAR2103	98%	1KG	1KG

6. Sodium Ascorbyl Phosphate Advantages

1. Compared with vitamin C

Vitamin C is a catalyst in cell oxidation-reduction reaction. Human body cannot synthesize itself. Vitamin C must be taken from food. High activity is the advantage of vitamin C, but at the same time it is the inadequacy, mainly as follows: (1) unstable, susceptible to light, heat, etc. The reduction ability of vitamin C will be lost after decomposition. Expose vitamin C at room temperature for one day, the loss is more than 50%; and it decomposes faster under high temperature or light. (2) It is easily dehydrated and loses its activity in an acidic medium at high temperature.

The activity of vitamin C is mainly derived from two hydroxyl groups on its enol structure. If any of its hydroxyl groups are esterified with mineral acid, the stability to heat, acid and oxygen will greatly enhance. For example, the antioxidant capacity of phosphate derivatives of vitamin C in boiling water is about 10 times that of vitamin C. Compared with vitamin C, Sodium Ascorbyl Phosphate (1) is chemically stable and difficult to be oxidized; (2) has high thermal stability; (3) has high bioavailability, and can also be decomposed by phosphatase in human body. It has same effects as vitamin C.

2. Comparison with other vitamin C derivatives

Common vitamin C derivatives include vitamin C metal salts, vitamin C phosphates, vitamin C sulfates, and vitamin C palmitate.

Although vitamin C metal salt is simple and easy to obtain, it is not stable due to easy moisture absorption. Studies have found that vitamin C sulfate cannot be absorbed by body. The palmitate resources required for vitamin C palmitate are not abundant, and it is not suitable for large-scale production. The shortcomings of vitamin C phosphate magnesium in industrial production and application are mainly as follows: the crystallization yield is low; and it is difficult to separate from by-products produced by the reaction; the dissolution rate in water is very low; and it is easy to change color after being placed.

Sodium Ascorbyl Phosphate overcomes the shortcomings of the above vitamin C derivatives. It has high stability and good water solubility. It can be decomposed and utilized by phosphatase in human body. Also it is suitable for large-scale production.

7. Sodium Ascorbyl Phosphate Application and Reference Dosage

As a common whitening additive, Sodium Ascorbyl Phosphate is widely used in various functional cosmetics, such as whitening cream, lotion, facial cleanser, toner, and other anti-wrinkle skin care products.

Note:

• Water-soluble Sodium Ascorbyl Phosphate and oil-soluble vitamin E acetate have synergistic effect. The combination of the two forms an excellent anti-oxidation system.
• Compounding with ascorbyl palmitate also enhances SAP’s anti-oxidation property.
• In a cosmetics formulation, Sodium Ascorbyl Phosphate should be added when temperature is less than 40°C.
• Sodium Ascorbyl Phosphate is most stable above pH 6.5, and will change color when pH is lower than 6.
• Cosmetics containing Sodium Ascorbyl Phosphate should be stored below 25°C.

Sodium Ascorbyl Phosphate application cases in major cosmetic brands in the world

8. Sodium Ascorbyl Phosphate Reference Formula

• Whitening mask

Preparation method：

1. Add 76.8% water and disodium EDTA to the stirring pot. Heat to 85°C while stirring, so that disodium EDTA is fully integrated into water, and then keep for 10 minutes.
2. Add glycerin, propylene glycol, 4% butanediol, 0.4% diazolidinyl urea, hydroxyethyl cellulose to stirring pot and stir until completely dispersed.
3. Cool down to 40°C, add 4.33% water, rhodiola root extract, 0.25% butanediol, 0.02% diazolidinyl urea, Sodium Ascorbyl Phosphate into stirring pot; stir evenly.
4. Add PEG-60 hydrogenated castor oil and fragrance to stirring pot. Stir evenly, and then cool down to 15°C to obtain the mask.

• Nourishing facial mask fluid

• Whitening emulsion

Preparation method：

1. Mix the raw materials of phase A and heat to 85°C; stir evenly, and keep at 85°C for use.
2. Mix the raw materials of phase B and heat to 85°C; stir evenly, and keep at 85°C for use.
3. Mix the materials obtained in the above steps 1 and 2. Use a homogenizer; keep at 83-85°C and homogenize at 2800 rpm for 15 minutes, and then cool to 38°C.
4. Add the raw materials of phase C and mix well to obtain the whitening emulsion.

Note: The formulation’s water activity is 0.87; pH is 4.3; and viscosity is 7500cps at room temperature.

• Sunscreen lotion

Preparation method：

Heat phase A and phase B raw separately to 80°C, and then put phase A into phase B and homogenize. Then add phase C materials and homogenize to obtain the sunscreen lotion.

• Body lotion

Preparation method：

Dissolve phase A ingredients. Dissolve phase B and stir it into phase A.

Note: adjust pH value to 5-6.

• Anti-wrinkle night cream

Preparation method：

Heat phases A and B ingredients separately to 85°C. Stir phase B into phase A and homogenize thoroughly. Cool to 40°C; then add phase C and homogenize again.

• Whitening cleanser