Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of oligopeptide-34 in China. Welcome to wholesale bulk high quality oligopeptide-34 for sale here from our factory. Good service and reasonable price are available.
Oligopeptide-34 is a biomimetic cosmetic peptide that participates in skin cell signaling through specific short peptide sequences. Unlike traditional skin-lightening ingredients, which rely on a single pathway of directly inhibiting enzyme activity, this substance can intervene in the melanin synthesis signaling pathway while also exerting a certain regulatory effect on localized microinflammation in the skin.To obtain high-purity, batch-consistent product, along with technical support and comprehensive quality reports, consider Bloomtechz, a manufacturer of peptide ingredients.
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Oligopeptide-34 COA
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| Certificate of Analysis | ||
| Compound name | Oligopeptide-34 | |
| Grade | Pharmaceutical grade | |
| CAS No. | N/A | |
| Quantity | 18g | |
| Packaging standard | PE bag+Al foil bag | |
| Manufacturer | Shaanxi BLOOM TECH Co., Ltd | |
| Lot No. | 202601090058 | |
| MFG | Jan 9th 2026 | |
| EXP | Jan 8th 2029 | |
| Structure | N/A | |
| Item | Enterprise standard | Analysis result |
| Appearance | White or almost white powder | Conformed |
| Water content | ≤5.0% | 0.55% |
| Loss on drying | ≤1.0% | 0.62% |
| Heavy Metals | Pb≤0.5ppm | N.D. |
| As≤0.5ppm | N.D. | |
| Hg≤0.5ppm | N.D. | |
| Cd≤0.5ppm | N.D. | |
| Purity (HPLC) | ≥99.0% | 99.65% |
| Single impurity | <0.8% | 0.77% |
| Total microbial count | ≤750cfu/g | 102 |
| E. Coli | ≤2MPN/g | N.D. |
| Salmonella | N.D. | N.D. |
| Ethanol (by GC) | ≤5000ppm | 569ppm |
| Storage | Store in cool, dark place or refrigerator | |
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Before production equipment is put into operation and after each batch change, a high-temperature,
high-pressure steam sterilization process followed by pure water rinsing is employed to thoroughly remove residual impurities and microorganisms from the equipment, thereby eliminating cross-contamination.In the raw material sterilization process, we have abandoned traditional high-temperature, high-pressure sterilization (which tends to destroy peptide activity) and chemical sterilants (which can leave residual contamination). Instead, we employ a low-temperature aseptic ultrafiltration sterilization process. This involves multi-stage filtration of the purified Oligopeptide-34 raw solution through high-precision aseptic filter membranes, precisely retaining microbial impurities such as bacteria, molds, yeasts, and spores.


This achieves aseptic processing of the raw materials without compromising the structure or activity of the peptide chains. Additionally, after the finished powdered raw material is packaged, a low-temperature irradiation sterilization process is employed to further eliminate trace amounts of residual microorganisms. The entire process is free of chemical residues and results in no loss of activity.
During the final product testing and quality control phase, comprehensive microbial testing is conducted on every batch prior to shipment. Products are only released after confirmation that no pathogenic bacteria-including total colony count, molds, yeasts, Staphylococcus aureus, and Pseudomonas aeruginosa-are detected, and are accompanied by a complete sterility test report.
To meet the sterility requirements of clients in the high-end spa and medical aesthetics markets, Bloomtechz offers customized raw materials with ultra-high sterility levels, along with one-on-one guidance on sterilization process adaptation and regulatory compliance. Leveraging a comprehensive sterility control system and proven sterilization technology, we ensure that every batch of raw materials is safe, compliant, and meets quality standards, helping clients develop high-end, safe, and effective end-user products.
The sterility of cosmetic ingredients and microbial control are key to ensuring the safety and compliance of end products. As a high-end, performance-driven skincare ingredient,


Oligopeptide-34 is subject to stringent standards for aseptic production, disinfection, and sterilization. Bloomtechz has established a comprehensive, closed-loop disinfection and aseptic control system covering the entire process-from raw material pretreatment, production and synthesis, purification and refinement, to finished product filling, warehousing, and shipment. By employing a dual-process approach combining physical sterilization and aseptic filtration, the company eliminates the risk of chemical sterilization residues, maximizes the retention of the raw material's biological activity, and ensures product safety and purity.Regarding production environment control, all production, filling, and repackaging processes are conducted in Class 10,000 sterile cleanrooms.
These facilities are equipped with constant temperature and humidity systems, air dust and germ removal systems, and UV sterilization systems. Comprehensive sterilization and disinfection of the air, equipment, and work surfaces are performed at regular intervals, ensuring that levels of airborne particles, settled bacteria, and microbial colony counts strictly comply with cosmetic production cleanliness standards. Before production equipment is put into operation and after each batch change, a high-temperature, high-pressure steam sterilization process followed by pure water rinsing is employed to thoroughly remove residual impurities and microorganisms from the equipment, thereby eliminating cross-contamination.


In the raw material sterilization process, we have abandoned traditional high-temperature, high-pressure sterilization (which tends to destroy peptide activity) and chemical sterilants (which can leave residual contamination). Instead, we employ a low-temperature aseptic ultrafiltration sterilization process. This involves multi-stage filtration of the purified Oligopeptide-34 raw solution through high-precision aseptic filter membranes, precisely retaining microbial impurities such as bacteria, molds, yeasts, and spores. This achieves aseptic processing of the raw materials without compromising the structure or activity of the peptide chains.Additionally, after the finished powdered raw material is packaged,
a low-temperature irradiation sterilization process is employed to further eliminate trace amounts of residual microorganisms. The entire process is free of chemical residues and results in no loss of activity.
During the final product testing and quality control phase, comprehensive microbial testing is conducted on every batch before shipment. Products are only released after confirmation that no pathogenic bacteria-including total colony count, molds, yeasts, Staphylococcus aureus, and Pseudomonas aeruginosa-are detected, and are accompanied by a complete sterility test report. To meet the sterility requirements of clients in the high-end spa and medical aesthetics markets,


Bloomtechz offers customized raw materials with ultra-high sterility levels, along with one-on-one guidance on sterilization process adaptation and regulatory compliance. Leveraging a comprehensive sterility control system and proven sterilization technology, we ensure that every batch of raw materials is safe, compliant, and meets quality standards, helping clients develop high-end, safe, and effective end-user products.In terms of quality assurance, the brand rejects the industry's extensive production model and insists on independent testing and comprehensive verification of all indicators for every batch of products. This includes multi-dimensional testing covering purity, activity, physicochemical properties,
heavy metals, microorganisms, stability, and irritation.For each batch of raw materials, the company provides complete, traceable quality test reports, certificates of conformity, and compliance filing documents. All products strictly adhere to international safety standards for cosmetic ingredients, ensuring that substandard or low-quality products never leave the factory and guaranteeing that clients' end products are compliant, safe, and stable. On the production side, the company leverages mature hybrid solid-liquid phase synthesis technology to continuously optimize process parameters and strictly control batch-to-batch variations, achieving consistent and stable quality during large-scale mass production.

This addresses common industry pain points associated with peptide ingredients, such as inconsistent batch activity, excessive impurities, and poor stability.
References
[1] Putri R A, Sari D P, Pratama R. Peptide Design for Enhanced Anti-Melanogenesis: Optimizing Molecular Weight, Polarity, and Cyclization[J].
[2] Kim S, Park J. PKA/CREB-Mediated MITF Downregulation in Synthetic Oligopeptide-Induced Skin Depigmentation[J].
[3] Al-Sadek T, Yusuf N. Ultraviolet Radiation and Skin Pigmentary Disorders: Mechanisms and Peptide-Based Intervention Strategies[J].
[4] Gorouhi F, Maibach H I. Bioactive Oligopeptides in Dermatology: Structure, Safety and Cosmetic Application[J].
[5] Zhang L, Wang Y. Research Progress on Synthetic Peptides for Targeted Regulation of Melanosome Transport[J].
Frequently Asked Questions
1: Does Oligopeptide-34 interact adversely with acidic or antioxidant active ingredients in a formulation system?
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It exhibits excellent formulation compatibility. Within the standard pH range of skincare formulations, it can be stably blended with acidic and antioxidant active ingredients such as alpha-hydroxy acids (AHAs), hyaluronic acid, ergothioneine, and vitamin E, without causing ingredient antagonism, loss of activity, or issues such as separation or cloudiness in the formulation. Formulation stability can be ensured simply by avoiding systems containing extremely high concentrations of strong acids. Leveraging its proven formulation technology, Bloomtechz offers stability testing solutions for various blending systems and provides one-on-one assistance to help customers optimize formulation ratios. Compatibility testing data is provided for every batch of raw materials to ensure the stability of the final formulation.
2: How is batch-to-batch variability of the Oligopeptide-34 raw material controlled? Is there a risk of efficacy fluctuations during mass production?
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Batch-to-batch variability in synthetically produced peptide raw materials primarily stems from residual synthesis byproducts, insufficient purification precision, and fluctuations in process parameters. Every batch undergoes full testing for activity, purity, and stability, accompanied by a complete quality report, ensuring smooth large-scale production for our customers.
3: After long-term storage in formulations, does Oligopeptide-34 exhibit aging issues such as sedimentation, discoloration, or loss of activity?
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Compared to most small-molecule brightening peptides, It demonstrates superior anti-aging and anti-degradation properties. As verified by long-term aging tests at room temperature, when stored in a compliant formulation system under sealed conditions for over 12 months, there is no noticeable sedimentation, cloudiness, or discoloration. Bloomtechz provides long-term aging test reports for raw materials and storage optimization solutions, with a dedicated technical team offering one-on-one support to resolve customers' formulation storage challenges.
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