1. Rhodiola Crenulata Extract Overview
Rhodiola Crenulata Extract, also named Rhodiola rosea extract, is derived from the dried roots and rhizomes of Rhodiola rosea. It contains various functional components such as salidroside, tyrosol, and ketone. Salidroside is the main active ingredient of rhodiola rosea extract. It shows strong antioxidant activity, so it has anti-aging effect. Also rhodiola rosea extract has certain inhibitory effect on tyrosinase, indicating its skin whitening effect. It can also be used as an anti-inflammatory agent and moisturizer. Therefore, rhodiola rosea extract is widely used in whitening, anti-aging, anti-ultraviolet radiation and other functional cosmetics.
2.Rhodiola Crenulata Extract Source
Rhodiola crenulata is a perennial herb with a height of 10-20 cm. It grows in an alpine unpolluted zone with an altitude of 1800-2500 meters. It has strong vitality and special adaptability. It is mainly distributed in Tibet, northwestern Yunnan, western Sichuan, etc. According to the Chinese Pharmacopoeia, Rhodiola rosea is used as a Chinese herbal medicine; and its medicinal part is its dry roots and rhizomes. Modern pharmacological studies have shown that Rhodiola rosea has anti-aging and anti-oxidation effects. It also has great cosmetic effects and can be used in skin care products.
3.Rhodiola Crenulata Extract Manufacturer Specifications
| Items | Specification |
| Salidroside | ≥2% |
| Organoleptic Tests | |
| Appearance | White powder |
| Odor | Characteristic |
| Taste | Characteristic |
| Physical Characteristics | |
| Particle size | 98% through 80 mesh |
| Moisture | ≤7.0% |
| Ash content | ≤10.0% |
| pH value | 5.0-7.0 |
| Heavy Metals | |
| Pb | ≤10(mg/kg) |
| As | ≤2(mg/kg) |
| Hg | ≤1(mg/kg) |
| Cd | ≤5(mg/kg) |
| Microbiological Tests | |
| Total of bacteria | ≤100cfu/g |
| Yeast & mold | ≤20cfu/g |
| Thermotolerant coliforms | Negative |
| P.Aeruginosa | Negative |
| Staphylococcus aureus | Negative |
4.Rhodiola Crenulata Extract Benefits
- Anti-oxidation
Rhodiola rosea extract has superior superoxide dismutase (SOD) activity. It can scavenge oxygen free radicals, and effectively reduce skin oxidative stress. Additionally, it improves skin’s dull state due to oxidative damage.
- Anti-aging
Rhodiola rosea extract can effectively repair dermal layer of fibroblasts. It can reduce UVA damage, and resist UVA photoaging damage to dermis. Rhodiola rosea extract protects dermal cells, and delays skin cell damage. Therefore, it can achieve anti-aging effect.
- Anti-aging
Rhodiola rosea extract has a strong inhibitory effect on tyrosinase activity. Also, it has a significant inhibitory effect on mushroom tyrosine in vitro. Thereby rhodiola rosea extract reduces skin melanin production, and improves skin pigmentation and whitens skin.
5.Rhodiola Crenulata Extract Application & Reference Dosage
| Specification | Reference Dosage |
| cream, lotion, essence, toner, mask, sunscreen | 0.1-3.0% |
Rhodiola Crenulata Extract application cases in major cosmetic brands in the world
| Country | Brand | Product |
| France | Clarins |
Day Screen Multi-Protection
Multi-Active Nuit Night Cream Hydra-Essential Silky Cream |
| USA | WEI | Anti-Wrinkle Cream Mask |
| Kiehl’s |
Energizing Tonic For Man
Energizing Face Wash Cactus Flower & Tibetan Ginseng Hydrating Mist |
|
| Marykay | Sunscreen For Sensitive Skin | |
| Switzerland | La Prairie | Ice Crystal Huile Seche Cellular Suisse |
| Korea | Jart | Hydro Sleep Mask |
6.Rhodiola Crenulata Extract Reference Formula
Hand cream
| Phase | Ingredient | Content (%) | Ingredient | Content (%) |
| A | Rhodiola Crenulata Extract | 2.0 | Higher Fatty Alcohol | 4.0 |
| Silicone | 3.0 | Emulgator | 1.8 | |
| Antioxidant | 0.3 |
|
|
|
| B | Propylene Glycol | 10.0 | Preservative | 0.2 |
| Glycerin | 20.0 |
|
|
|
| C | Azone | 1.0 | Fragrance | q.s. |
| Distilled Water | Add to 100 |
|
|
Toner
| Phase | Ingredient | Content (%) | Ingredient | Content (%) |
| A | Rhodiola Crenulata Extract | 1.0 |
|
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| B | Deionized Water | Add to 100 | Polyhydric Alcohols | 3.5 |
| Sodium Hyaluronate | 0.02 | Allantoin | 0.1 | |
| C | Hydrogenated Castor Oil | 0.03 | Fragrance | Q.S. |
| Preservative | q.s. |
|
4.0 |
Sunscreen
| Ingredient | Content (%) | Ingredient | Content (%) |
| Rhodiola Crenulata Extract | 1.5 | Stearic Acid | 2.0 |
| Liquid Paraffin | 13.0 | Octadecanol | 3.0 |
| Simethicone | 2.0 | Polyoxyethylene Sorbitol Monooleate | 3.0 |
| Glycerin | 5.0 | Propylene Glycol | 4.0 |
| Triethanolamine | 1.5 | Vitamin E Acetate | 0.2 |
| Ethylparaben | 0.4 | Fragrance | 1.5 |
| Deionized Water | Add to 100 |
|
|
7.Rhodiola Crenulata Extract Safety
- Cosmetic, Toiletry &Fragrance Association (CTFA) has specified Rhodiola Crenulata Extract as a cosmetics ingredient.
- The safety of Rhodiola Crenulata Extract is tested in Safety Standards for Cosmetics (2015 edition); and it has no known insecurity for external use.
- Rhodiola Crenulata Extract is a cosmetic ingredient approved by CFDA (China Food and Drug Administration).
8.Production Process
9.Packing and Storage
Package: Packed in 1kg fresco bag with two plastic bags inside.
Storage: Stored in a cool dry place and away from direct sunlight and oxidizing agents.
