INCI: Ascorbic acid
P.M .: 176.1
CAS number: 50-81-7
EC No .: 200-066-2
Synonym: L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
DESCRIPTION: White or almost white crystalline powder.
SOLUBILITY: Easily soluble in water; practically insoluble in alcohol.
IDENTIFICATION Positive Reaction
pH (2% aqueous sol) 2.4- 2.8
pH (5% aqueous sol) 2.1- 2.6
FUSION POINT 190 ° C (Approx.)
APPEARANCE SOLUTION Clear. Color: <= BY7
OPTIC ROTATION SPECIFIC + 20.5º / + 21.5º
WEALTH 99.0 - 100.5
IMPURITY C Negative
HEAVY METALS <10 ppm
MERCURY (Hg) <0.1 ppm
LEAD (Pb) <2 ppm
IRON (Fe) <2 ppm
COPPER (Cu) <5 ppm
CADMIUM (Cd) <1 ppm
ARSENIC <3 ppm
OXALIC ACID <0.2%
LOSS PER DRYING <0.4%
SULPHATED ASHES <0.1%
VOLATILE ORGANIC IMPURITIES
PARTICULATE SIZE 40-80 mesh
Repairing, renovating and excellent antioxidant.
Vitamin C or ascorbic acid is the chemical name for vitamin molecule, present in fruits and vegetables.
Essential: collagen biosynthesis, and weak depigmentation.
Protection against sun damage done, if applied together with Vit E in Serum before sunbathing.
It is well known effect of lightness, dryness, signs of fatigue.
Vitamin C is one of the principles used in cosmetology ampliamemte According to International Journal of Pharmaceutics, vitamin C has at least the siguientepropiedades:
- Fights free radicals (hydroxyl radical reacts with superoxide anion and)
- Inhibits the pigmentation depressing the enzyme tyrosinase.
- Activate collagen production promoting skin firmness
- Power solar protection against both UVA
Additionally, Dr. Jeannette Graff adds another property of topical vitamin C:
- Increased levels of MMP-1 inhibitors that degrades collagen gene.
- L-ascorbic acid: is the most common form of vitamin C is water-soluble cosmetic. Its advantage is that it is well tolerated at high concentrations in cosmetic products. It is known that L-ascorbic acid is deteriorated by contact with light and air. If you are using a product with ascorbic acid, the container should be opaque and form tube or dispenser with minimum contact with air (although this rule should always be applied in cosmetics).