cosmetic raw material Skin Whitening 98% Curcumin Extract tetrahydrocurcumin powder
Product Description：
As a whitening material, tetrahydrocurcumin has strong activity of inhibiting tyrosinase, and its whitening effect is better than that of well-known arbutin.
It can effectively inhibit the generation of oxygenfreeradicals and remove the already formed freeradicals, and has obvious antioxidant, melanin inhibiting, freckle repairing, anti-inflammatory activity and blocking the inflammatory process.
In addition, the inhibition of free radicals, lipoxy and enzymes of various inflammatory factors, collagenase, and hyaluronidase reflects the potential anti-aging effect of tetrahydrocurcumin
COA：
NEWGREEN HERB CO., LTD
Add: No.11 Tangyan south Road, Xi’an, China
Tel: 0086-13237979303 Email: bella@lfherb.com
Certificate of Analysis
| Product Name: Tetrahydrocurcumin | Country of Origin: China |
| Brand：Newgreen | Manufacture Date: 2023.09.18 |
| Batch No: NG2023091801 | Analysis Date: 2023.09.18 |
| Batch Quantity:500kg | Expiration Date: 2025.09.17 |
| Item | Specification | Results | Method |
| Identification | Present responded | Verified | Sense |
| Appearance | Off-white to White Powder | Complies | Sense |
| Odor & Taste | Characteristic | Complies | Sense |
| Particle Size (80 mesh) | 100% pass 80 mesh | Complies | / |
| Moisture | ≤1.0% | 0.56% | 5g/ 105℃ /2hrs |
| Assay | ≥ 98% Tetrahydrocurcumin | 98.13% | HPLC |
| Ash Content | ≤1.0% | 0.47% | 2g /525℃ /3hrs |
| Solvent Residues | ≤0.05% | Complies | Gas Chromatography |
| Heavy Metal | ≤10ppm | Complies | Atomic Absorption |
| Arsenic | ≤2ppm | Complies | Atomic Absorption |
| Cadmium(Cd) | ≤1ppm | Complies | Atomic Absorption |
| Lead (Pb) | ≤1ppm | Complies | Atomic Absorption |
| Chlorate (CI) | ≤1ppm | Complies | Atomic Absorption |
| Phosphate Organics | ≤1ppm | Complies | Gas Chromatography |
| Pesticides Residues | ≤1ppm | Complies | Gas Chromatography |
| Aflatoxins | ≤0.2ppb | Complies | HPLC |
| Microbiological control | |||
| Total of bacterium | ≤1000CFU/g | Complies | GB 4789.2 |
| Yeast & Mold | ≤100CFU/g | Complies | GB 4789.15 |
| Salmonella | Negative | Negative | GB 4789.38 |
| E. coli | Negative | Negative | GB 4789.4 |
| Packing description: | Sealed export grade drum & double of sealed plastic bag |
| Storage: | Store in cool & dry place not freeze., keep away from strong light and heat |
| Shelf life: | 2 years when properly stored |
Analyzed by: Li Yan Approved by:WanTao
Characteristics of tetrahydrocurcumin:
1.It is not easy to change color, good mechanical stability, pH stability and thermal stability.
2.Uniform product distribution small particle size: no suspended matter after dispersion.
3. The color is white, more suitable for making cosmetics raw materials (most manufacturers' products are light yellow)
Tetrahydrocurcumin has the following skin care benefits:
1 Whitening
Tetrahydrocurcumin can effectively inhibit tyrosinase, slow down the production of melanin, and more effective than kojic acid, arbutin, vitamin C and other whitening agents. At the same time, the powerful antioxidant activity of tetrahydrocurcumin can also delay the generation of melanin, thus brightening the skin and achieving whitening effect. A foreign study randomized 50 subjects in a double-blind placebo-controlled trial, researchers found that in the whitening formula, 0.25% tetrahydrocurcumin cream is more effective and safer than 4% hydroquinone (skin bleaching agent banned in cosmetics) cream.
2.Antioxidant
Free radicals on the skin surface are produced as a result of skin aging catalyzed by ultraviolet light, chemicals, or other stressors. Tetrahydrocurcumin mops up free radicals, thereby preventing their formation. In addition, tetrahydrocurcumin can also inhibit the proliferation of free radicals, inhibit the oxidation of fat, and can be added to the formula as a natural antioxidant to extend the shelf life of cosmetics.
3. Anti-inflammatory
Tetrahydrocurcumin has a broad spectrum of anti-inflammatory and antibacterial effects, can repair skin inflammation and skin damage caused by UVB, and can more effectively relieve pain and reduce swelling, and has a significant effect on the treatment of mild burns, skin inflammation and acne scars.
The following is a cosmetic formulation guide for tetrahydrocurcumin:
When equipped with cosmetics, use stainless steel containers to avoid contact with iron, copper and other metals;
It is dissolved in a solvent and then added to the emulsion at 40°C (104°F) or lower;
The pH value of the formula is recommended to be weakly acidic, preferably between 5.0-6.5;
Stable in 0.1M phosphate buffer;
Tetrahydrocurcumin can be gelated with thickening agents such as carbomer and lecithin.
Suitable for preparation in skin care products such as creams, gels and lotions;
It can be used as a preservative and light stabilizer to be added to cosmetic formulations, and the recommended dosage is 0.1-1%.
Dissolved in ethoxy diglycol (a osmotic enhancer); Partially soluble in isosorbide and ethanol;
Dissolved in propylene glycol at 40°C in 1:8 ratio; Soluble in polysorbate at 40°C in 1:4 ratio;
Insoluble in glycerin and water.
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