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Tetrapeptide-1.

Name: Tetrapeptide-1.
Brand: ZHAOKE BIOTECH
SKU: pr2610191143
Price: 140 USD
Availability: InStock

Unit Price:

$140-150/G FOB

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Grade:

Pharmaceutical Grade

Content:

98%

Port:

shenzhen

Brand:

ZHAOKE BIOTECH

Packaging:

1g/Aluminum Foil Bag with Desiccant

Sample Available:

Yes

Price valid (until):

2027-01-30

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Shenzhen Zhaoke Biotechnology Co., Ltd.

Company Type:

Trader

Location:

China

Payment Terms:

100% TT in advance

Average Lead Time:

30 days

Qualification:

Main Products:

Peptide API

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Product Details
Seller Information

Description

Tetrapeptide-21 is a synthetic cosmetic-grade tetrapeptide supplied by Shenzhen Zhaoke Biotechnology Co., Ltd. as a purified raw powder for skincare formulation use. It is produced by solid-phase peptide synthesis (SPPS), purified by preparative HPLC, and released against a batch-specific certificate of analysis stating the actual analytical results of each lot.

Product definition INCI: Tetrapeptide-21 (GEKG). CAS No.: 960608-17-7 (verify against batch COA). Sequence, molecular formula and molecular weight: as stated on the batch COA. Grade: Cosmetic Grade. Appearance: white to off-white powder.

Specification

Parameter	Specification
Assay / Purity (HPLC)	≥ 98.0%
Identity (LC-MS)	Conforms to reference
Appearance	White to off-white powder
Water content (Karl Fischer)	≤ 8.0%
Heavy metals	≤ 10 ppm
Total aerobic microbial count	≤ 10³ CFU/g
Counter-ion / salt form	As stated on batch COA

Application areas Tetrapeptide-21 is a signal peptide used in anti-ageing and skin-regeneration cosmetic formulations, including face serums, firming creams, essence lotions and concentrate ampoules. It is typically added during formulation at ppm-level active concentrations and may be combined with other signal peptides, moisturising agents and barrier-supporting ingredients in multi-peptide complex formulas. This product is supplied for cosmetic manufacturing and research use only; not for human or veterinary therapeutic use, and no dosing or treatment guidance is provided.

Storage and packaging Store sealed at 2–8 °C, dry and protected from light; −20 °C for long-term storage. Available in 1 g amber glass vials, 10 g / 100 g aluminium foil bags (double-LDPE inner bag with desiccant), and bulk foil bags for commercial quantities. Under these conditions the powder remains stable for 24 months unopened.

Supply notes Each shipment includes a batch-specific COA (HPLC assay, LC-MS identity) and MSDS. Small gram-scale evaluation packs are available for R&D sample testing; volume-tiered pricing is offered for larger formulation quantities. Please send your inquiry through the ECHEMI message centre; our sales team replies within one working day.

Email:jade.cheung@zhaokebio.com

our company

Shenzhen Zhaoke Biotechnology Co., Ltd. is a peptide raw-material supplier based in Shenzhen, China. We specialize in cosmetic peptides and research-grade peptides, produced by solid-phase peptide synthesis (SPPS) with preparative HPLC purification, and released against a batch-specific certificate of analysis. Our own laboratory and pilot line handle synthesis, purification, lyophilisation and QC release in-house, supporting both gram-scale samples and bulk commercial quantities.

Items	Specifications
Ship	DDP
Purity	98%
Product Name	Tetrapeptide-1.

Research & Reference Note

Tetrapeptide-1. is listed on ECHEMI for industrial / laboratory sourcing. This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

Authoritative sources

Disclaimer: This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

Reviewed by ECHEMI Scientific Review - Platform editorial review for research chemicals

Basic Info

Product Name:

beauty peptide, skin care, anti-aging ingredient, cosmetic active

Categories:

Hormones and the Endocrine System

Seller Information

Business Type:
Trader

Main Products:
Peptide API

Location:
Room A207-208, Building A, No.3 Branch Park, Leibo Zhongcheng Life Science Park, Pingshan District, Shenzhen, Guangdong, China, 518118

Payment Terms:
100% TT in advance

Average lead Time:
30 days

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2025

Company Certificates
- Business Certificate
Shenzhen Zhaoke Biotechnology Co., Ltd. operates as a specialized global procurement and supply chain solutions provider focused exclusively on high-quality peptide APIs. Rather than manufacturing, our core competency lies in strategically sourcing, rigorously vetting, and reliably delivering premium peptide products from qualified suppliers across the global pharmaceutical landscape.

We serve as the critical link between world-class peptide producers and pharmaceutical R&D centers, research institutions, and manufacturing enterprises across North America, Europe, Asia Pacific, and emerging markets. Our mission is to eliminate procurement complexity, mitigate supply risk, and ensure uncompromising quality at every stage of the sourcing journey
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Tetrapeptide-1.

Product Details

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