Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality buy - large image1

Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality buy - image1

Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality buy - image2

Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality buy - image3

Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality buy - image4

Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality

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CAS No.:

1026993-38-3

Grade:

Pharmaceutical Grade

Content:

99%

Port:

HONGKONG

Brand:

STTY

Packaging:

10via/kit

Sample Available:

Yes

Price valid (until):

2026-07-03

Contact Supplier

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Jingdezhen Shengtian Tuyuan Trading Co., Ltd.

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

11 days

Qualification:

Main Products:

Peptide

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Product Details
Seller Information
Inquiry History

Description

+852 5384 5049 Justin

Product Detail

Here is an English product overvied for Testagen :

Composition:

Testagen is a synthetic tetrapeptide bioregulator with the amino acid sequence Lys-Glu-Asp-Ala (KEDA/Lys-Glu-Asp-Ala), sharing structural identity with certain epitopes of chromatin-associated proteins; it is synthesized via solid-phase peptide synthesis, has a molecular weight below 500 Da, and is provided as a high-purity lyophilized powder intended strictly for laboratory research.

Mechanism of Action:

It is hypothesized to act as a cytogen (short peptide bioregulator) that penetrates the nuclear membrane of target cells—particularly hepatocytes and Leydig or steroidogenic cell models—where it binds to specific DNA promoter regions and induces localized chromatin decondensation, thereby partially reversing age-related gene silencing and facilitating the transcriptional reactivation of proteins involved in steroidogenesis, cellular metabolism, and tissue-specific repair pathways.

Research Advantages:

Testagen’s low molecular weight permits efficient cellular uptake and nuclear localization without requiring carriers; its epigenetic modulatory activity allows researchers to study peptide-induced reversal of gene silencing distinct from classical hormone receptor agonism, and it demonstrates minimal cytotoxicity and low immunogenicity in vitro. As a short, stable peptide, it offers reproducible dose–response behavior in cell-based models of endocrine or hepatic aging and serves as a useful tool for investigating peptide-mediated gene expression restoration.

Intended Research Population:

This compound is designated for non-clinical, in vitro, or ex vivo studies focused on age-related declines in androgen-axis gene expression, chromatin condensation models, male reproductive tissue aging, hepatocyte metabolic restoration, and comparative bio regulator screening; it is an investigational research reagent not approved for therapeutic, diagnostic, or human/animal administration outside controlled scientific experimentation.

Basic Info

Items	Specifications
Product Name	Testagen
CAS number	1026993-38-3
Purity	99%
Appearance	White or almost white powder
Storage	Dry and Cool Place
Grade Standard	Top Quality
Grade	Pharmaceutical Grade
Specification	5mg 10mg 20mg

Our Company

Our company is a modern advanced enterprise specializing in production and exportation of APIs, Pharmaceutical intermediates, plant extracts etc. Our products are widely used in medicine, health care products, cosmetics, nutritional supplements and food additives areas. Our factory covers an area of 95 acres, the proposed construction of the plant will be GMP standards, the factory environment clean and tidy, rational layout, with large and medium-sized production workshop and repocessed shop. It is equipped with advanced equipment quality inspection and research center. Those products of both quality and technical content have reached the domestic advanced level. Since its establishment, the company has attached great importance to the team training and technical reform. Our modern production equipment guarantees for a fast and effective production with a superior degree of accuracy throughout the whole production line, everything is done in-house, processing, extraction, packaging and transportation of all links, ensuring maximum quality and efficiency. We are constantly research and development new ingredients and innovative new products, have earned the respect & Admiration from the worldwide customers. After years of continuous development, company has been accumulated rich experience in international trade and customer resources, established a stable customer base and perfect marketing service network. In addition, the company has established long-term technical cooperation with experts and professors from many universities and research institutes in the province.

When storing peptides, remember to:
• Store peptide in a cold, dry, dark place
• Avoid repeated freezing and thawing of peptide
• Avoid overexposure to the air
• Avoid light exposure
• Avoid storing peptides in solution long term
• Aliquot peptide according to experimental requirements

Why choose us

Our Advantages：

1.High quality with competitive price.

2. All purity>99%.

3. We are manufacturer and can provide high quality products with factory price.

Fast and safe delivery.

1. Parcel can be sent out in 24 hours after payment tracking number available.

2. Secure and discreet shipment verious transportation methods for your choice.

3. Customs pass rate >99%.

We have clients throughout the world.

1. Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their different desire.

2. Market feedback and goods feedback will be appreciated, meeting customers’ requirement is our principal responsibility.

3. High quality, competitive price, fast delivery, first-class service gain the trust and praise from all the customers.

FAQ

1. How to make an order?
Send me message and let me know what you need with quantity , then i will calculate to you

2. What's the lead time and shipping ways?
We will delivery to the package by UPS, FEDEX, DHL paket and YANWEN express to you after receive your payment, it would take around 5-15 days to your address.

3. How do i keep the peptides when i receive it ?
Peptides in the form of lyophilized powder can be transported at room temperature by vacuum packaging, while polypeptides in the dissolved state need to be refrigerated at 2°C - 8°C. For long-term storage, peptides should be stored in the form of lyophilized powder store at -20°C or -80°C in a sealed container with desiccant, which can avoid the degradation of peptides to the greatest extent.

4. What's the payment methods?
We could accept pay through Wise, Bank Transfer, Alipay,Alibaba USDT and BTC.

ECHEMI Editorial Reference

Testagen peptide known as KEDG is a tetrapeptide consisting of lysine (Lys), glutamic acid (Glu), aspartic acid (Asp), and glycine (Gly), further presented as H–Lys–Glu–Asp–Gly–OH. KEDG represents a bioregulator intended to stimulate and regulate the functions of the endocrine system.[1]

Certificates

Basic Info

Product Name:

Testagen

Other Name:

Testagen;Testagen (Lys-Glu-Asp-Gly);Glycine, L-lysyl-L-α-glutamyl-L-α-aspartyl-;TESTAGEN 10mg;TESTAGEN 20mg;Lys-Glu-Asp-Gly

CAS No.:

1026993-38-3

Molecular Formula:

C17H29N5O9

InChIKeys:

HKEYFJLTNCUNAD-DCAQKATOSA-N

Molecular Weight:

447.44

Categories:

Bulk Drug Intermediates

Characteristics

Density:

1.401±0.06 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)

Boiling Point:

990.035±65.00 °C(Press: 760.00 Torr)(predicted)

PKA:

3.160±0.10(predicted)

Research

Class:

Dual agonist — GIPR, GLP-1R

Status:

FDA-approved (Mounjaro / Zepbound)

Mechanism:

Dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist. A 39-amino-acid modified peptide with a C20 fatty diacid moiety that enables albumin binding for extended half-life (~5 days). Selectively activates both GIPR and GLP-1R signaling pathways.

EC50 (Human GLP1R):

0.934 nM

EC50 (Human GIPR):

0.0224 nM

Source:

Frias JP, et al. N Engl J Med. 2021;385(6):503-515.DOI

Clinical Development:

NCT03954834; NCT03987919; NCT03882970; NCT03730662; NCT04039503

FDA:

Mounjaro, Zepbound (approved 2022-05-13)

References

ChEMBL:

DrugBank:

KEGG DRUG:

PubChem:

Literature:

NEJM: Frias et al. (2021) — SURPASS-2; FDA: Mounjaro (NDA 215866)

Disclaimer:

Tirzepatide is approved as a prescription medicine (Mounjaro, Zepbound) in certain jurisdictions. This listing is for industrial and laboratory research use only. Research-chemical listings on B2B marketplaces are not interchangeable with approved medicines. Confirm CAS, specification, and regulatory pathway with the seller. It is not medical advice, a clinical recommendation, or an approved therapy description.

Seller Information

Business Type:
Trader

Main Products:
Peptide

Location:
Room 1501, Building 1, Changnan Mansion, Country Garden, on the west side of Taoyang North Road

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
11 days

Year of Establishment:
2025

Inquiry History

1 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Testagen	10 MG	May 26, 2026

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Testagen| China Factory | Cosmetic Peptides | 99% Purity | Lyophilized Powder | hign quality

Product Details

Seller Information

Inquiry History

Grade Standard

Top Quality

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