Caffeine
Description of appearance: white or almost white crystalline powder/crystals.
Appearance of the solution: transparent, colorless.
Heavy metals: <10ppm.
Sulfates: <500ppm.
Acidity: no more than 0.2 ml of 0.01 M NaOH solution.
Individual impurities: A,B,C,D,E,F <0.1%.
Unidentified impurities: <0.1%.
Individual impurities: <0.1%.
Total amount of impurities: <0.1%.
Lead: <1 mg/kg.
Melting point: 236.2-236.9°C.
Weight loss on drying: 0.1%.
Residue after combustion: 0.05%.
Main substance content: 99.9%.
Solubility: poorly soluble in water (1:60), easily soluble in hot water (1:2), difficultly soluble in alcohol (1:50).
Cosmetics with caffeine increase the elasticity and smoothness of the skin, as it activates blood circulation, that is, improves complexion. Has a draining and strengthening effect.
Properties:
- anti-cellulite
- fat burning
- smoothing,
- antibacterial
- regenerating and rejuvenating.
Cosmetic use: 0.5-10%
- skin care around the eyes - 0.5-1%,
- sunscreen cosmetics - 2-3%
- hair strengthening, lotions-sprays - 1-3%
- active creams for thinning the silhouette - 5-10%
- anti-cellulite serums - 10%.
Storage: tightly sealed in a cool, dry place