Tetrapeptide-30
Based on 1 Customer Validation
Tetrapeptide-30 is a skin-brightening peptide consisting of four amino acids. Tetrapeptide-30 can act as a tyrosinase inhibitor, lightening hyperpigmentation and evening out skin tone by reducing the amount of tyrosinase and inhibiting melanocyte activation.
For research use only. We do not sell to patients.
- Purity: 99.62%
- CAS No.: 1036207-61-0
- Formula: C22H40N6O7
- Molecular Weight:500.59
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Storage:
Sealed storage, away from moisture and light, under nitrogen.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Tetrapeptide-30 (0-10 μg/mL, 24 h) can effectively reduce UVB-induced gene expression of IL-6, TNF-α and POMC (proopiomelanocorticotropin), and also decreased IL-8 gene expression in a dose-dependent manner[1].
Tetrapeptide-30 (PKEK) is highly hydrophilic and has good skin penetration in microemulsion[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1036207-61-0
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Appearance Solid
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Molecular Weight 500.59
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Formula C22H40N6O7
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Color White to off-white
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Sequence Shortening
PKEK
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture and light, under nitrogen
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen)
Solvent & Solubility
H2O : 100 mg/mL (199.76 mM; Need ultrasonic)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (271 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Alessandra Marini, et al. Modulation of skin pigmentation by the tetrapeptide PKEK: in vitro and in vivo evidence for skin whitening effects. Exp Dermatol. 2012 Feb;21(2):140-6. [Content Brief]
[2]. Reinhard H H Neubert, et al. Dermal peptide delivery using enhancer moleculs and colloidal carrier systems. Part II: Tetrapeptide PKEK. Eur J Pharm Biopharm. 2018 Mar;124:28-33. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O | 1 mM | 1.9976 mL | 9.9882 mL | 19.9764 mL | 49.9411 mL |
| 5 mM | 0.3995 mL | 1.9976 mL | 3.9953 mL | 9.9882 mL | |
| 10 mM | 0.1998 mL | 0.9988 mL | 1.9976 mL | 4.9941 mL | |
| 15 mM | 0.1332 mL | 0.6659 mL | 1.3318 mL | 3.3294 mL | |
| 20 mM | 0.0999 mL | 0.4994 mL | 0.9988 mL | 2.4971 mL | |
| 25 mM | 0.0799 mL | 0.3995 mL | 0.7991 mL | 1.9976 mL | |
| 30 mM | 0.0666 mL | 0.3329 mL | 0.6659 mL | 1.6647 mL | |
| 40 mM | 0.0499 mL | 0.2497 mL | 0.4994 mL | 1.2485 mL | |
| 50 mM | 0.0400 mL | 0.1998 mL | 0.3995 mL | 0.9988 mL | |
| 60 mM | 0.0333 mL | 0.1665 mL | 0.3329 mL | 0.8324 mL | |
| 80 mM | 0.0250 mL | 0.1249 mL | 0.2497 mL | 0.6243 mL | |
| 100 mM | 0.0200 mL | 0.0999 mL | 0.1998 mL | 0.4994 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Tetrapeptide-30 Related Classifications
HY-P3452 Related Classifications
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