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Selank SK5 Multi peptides Safe Ingredient Manufacturer Supply

TDS 41 Inquiries

Unit Price:

$20-25/G FOB

Get Latest Price 

CAS No.:

129954-34-3

Grade:

Pharmaceutical Grade

Content:

99%

Port:

shenzhen

Brand:

Packaging:

vials

Sample Available:

Yes

Price valid (until):

2027-12-30

Contact Supplier

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Ti.ZhenBo

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Retatrutide,Acetic acid water,Tirzepatide

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Product Details
Seller Information
Inquiry History

Description
Sales manager :Lucky

Whatsapp:+852 5263 7787

Email:zhenbo202604@163.com

website： https://airmastercool.com/

Company Introduction

Qingdao Fengxi Biotechnology Co., Ltd.is a professional manufacturer and supplier specializing in high-purity peptide products and fine chemical raw materials. We integrate independent research and development, production, sales and global logistics to provide stable, reliable and cost-effective products for customers worldwide.

We own a professional R&D team and a mature international logistics system, ensuring stable product quality, safe packaging and fast delivery. Our products are widely exported to the United States, Europe, Japan, South Korea, India and other regions. Most mainstream peptide products are always in sufficient stock and support immediate shipment. We sincerely welcome global customers to inquire and customize, and we will provide you with the most competitive quotation based on your purchasing quantity.

Our peptide products are widely applied in life science research, pharmaceutical development, cosmetic raw materials, anti-aging industries and functional health fields. All products maintain stable purity and superior quality with favorable market prices. Our long-term cooperative customers have always given positive feedback on product quality, stability and after-sales service.

1. Superior Product Quality

Quality control is our core advantage. All peptides are synthesized by advanced solid-phase peptide synthesis (SPPS) technology, strictly purified by HPLC high-performance liquid chromatography and fully tested and verified by MS mass spectrometry.

Every batch of goods comes with complete official COA (Certificate of Analysis), including full test data:

- HPLC purity

- MS molecular weight confirmation

- Moisture / water content

- Residual solvent test

- Microbial limit test (as required)

For customers with high-standard laboratory and regulatory requirements, we can also provide third-party independent test reports, LAL endotoxin data and stability test documents.

2. Customization & R&D Support

We provide flexible one-stop custom synthesis services, supported by an experienced technical R&D team. We support customized peptide sequences, cosmetic-grade customized purity and various molecular modification technologies such as acetylation and PEGylation.

Our main technical services cover:

- Custom peptide synthesis (mg to kg large-scale production)

- Peptide modification and marker customization

- Small molecule compound synthesis

- New product research, project development and production scale-up

We always communicate closely with customers to ensure technical rationality, stable quality, fast cycle and reasonable cost control in the whole development process.

3. Wide Product Portfolio

We own a complete and continuously updated product line to meet diversified market demands:

- Research peptides & GLP-1 series: Semaglutide, Tirzepatide, Retatrutide and other weight-loss & blood-sugar regulating analog peptides

- Cosmetic peptides: Acetyl Hexapeptide-8, Matrixyl and anti-aging skin care peptides

- Anti-aging health raw materials: NMN, NR, NADH and NAD+ booster series

- Biochemical raw materials: Amino acid derivatives, enzyme materials and laboratory custom reagents

We continuously launch new products to follow the latest market trends, and support long-term batch reservation and stable supply for regular customers.

Items Specifications

SK5 power

5MG*10vuals

1.:We offer various types of peptides，about the peptides，we can provide the good quality，the good price.

Customers who have ordered our products（peptides）have had very good feedback.

World wide relaible buyers can contact us about the peptides.

2:Company advantages

Are you from these countries?United States, Canada, Spain, Portugal, Australia, Brazil, France, Netherlands, United Kingdom, Bulgaria, Norway, and more.

Good News! We guarantee smooth customs clearance in key destinations, including Germany and Finland, with no issues at all. Your packages will be securely delivered within 5-15 days.

Why Choose Us:

Fast Delivery: We ship your order quickly using DHL, FedEx, and other options. Most orders arrive in 5-15 days.

Customs Clearance: No customs problems! We make sure your order is delivered smoothly.

Easy Payment: Pay with Bitcoin,USDT, or bank transfer.

Good Quality: Our products are great, and we support small test orders.

3:FAQ

Q1:Are you a supplier or a manufacturer?

A:We are both a supplier and a manufacturer.

Q2:How will you deliver the goods?

A:We have strong cooperation with Special express line, FEDEX, China Air Post. For container products, we can do sea shipping. You also can choose your own shipping forwarder.

Q3:Which kind of payment terms do you accept?

A:, Bitcoin.USDT.Alipay

Q4:How is the after-sales service?

A:We will provide high-quality products and ensure 100% safe deliver.

Q5:how can we guarantee quality?

A:We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality.

Q6: How to confirm the Product Quality before placing orders?

A:You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Q7:Is there any discount?

A:Yes, for larger quantity, we always support with better price

ECHEMI Editorial Reference

Selank is a synthetic derivative of the tetrapeptide tuftsin that contains a proline-glycine-proline sequence at the C-terminus and has anxiolytic and anti-inflammatory activities. It increases the amplitude and discharge rate of inhibitory postsynaptic currents of neurons in the rat hippocampal CA1 region when used at a concentration of 1 μM. It decreases the level of affective responses and the number of erroneous escape attempts in rats in an acute stress situation, increases orientational-investigative responses of rats in an unfamiliar situation, and reduces the time mice spend immobile in the forced swim test. It increases locomotor activity of high-anxiety Balb/c, but not C57Bl/6, mice in the open field test. Selank (0.01 mg/kg) decreases verticalization induced by apomorphine in mice. It also decreases expression of the inflammation-related genesIl2rgandXcr1in mouse spleen after 90 minutes when administered at a dose of 100 μg/kg.
SELANK Synthetic is a single, non-glycosylated polypeptide chain containing 7 amino acids, having a molecular mass of 751.89 Dalton and a Molecular formula of C33H57N11O9.
Research & Reference Note

Selank SK5 Multi peptides Safe Ingredient Manufacturer Supply 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

PubChem

ClinicalTrials.gov

FDA Drugs@FDA

NIH
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
Certificates
- TDS
Basic Info

Product Name:
Selank peptide

Other Name:
Selank peptide;SelankAcetate;PL14736;L-threonyl-L-lysyl-L-prolyl-L-arginyl-L-prolylglycyl-L-proline;L-THREONYL-L-LYSYL-L-PROLYL-L-ARGINYL-L-PROLYLGLYCYL-L-PROLINE; MONOACETATE;H-Thr-Lys-Pro-Arg-Pro-Gly-Pro-OH;SLANK;Selank peptid

CAS No.:
129954-34-3

Molecular Formula:
C33H57N11O9

InChIKeys:
JTDTXGMXNXBGBZ-YVHUGQOKSA-N

Molecular Weight:
751.87

Exact Mass:
751.43407244

EC Number:
232-660-2

UNII:
TS9JR8EP1G

Categories:
Bulk Drug Intermediates

Characteristics

Density:
1.53±0.1 g/cm3(Predicted)

Melting Point:
134-136 °C

PKA:
3.43±0.20(Predicted)

See More Selank peptide Properties 
Seller Information

Business Type:
Trader

Main Products:
Retatrutide,Acetic acid water,Tirzepatide

Location:
Room 2701-A046,Building 2,No.76 Lianyungang Road,Shibei District,Qingdao City,Shandong Province,P.R.China

Year of Establishment:
2023

Inquiry History

41 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Selank peptide	50 MG	Oct 13, 2026
France	peptide vial	10 MT	Oct 7, 2026
Georgia	Selank peptide	10	Sep 27, 2026
United States	Selank peptide	10 MT	Sep 25, 2026
Iceland	Selank peptide	100 G	Sep 23, 2026
United States	Selank peptide	10 MG	Sep 18, 2026
United States	selank	100 MG	Jul 7, 2026
Netherlands	Selank	10 MT	Jun 22, 2026
Netherlands	Selank 20 mg	20 MT	Jun 8, 2026
United States	selank	30 MG	May 25, 2026
Greece	selank	10 MG	May 20, 2026
United States	N acetyl selank	500 MG	Apr 30, 2026
United States	Selank	100 MG	Apr 24, 2026
Italy	Nacetyl selank	1 MT	Apr 22, 2026
Brazil	Selank	10 MT	Apr 7, 2026
United States	selank	1 G	Mar 13, 2026
United States	Selank	1 G	Mar 9, 2026
Australia	selank	3 MT	Mar 8, 2026
Oman	Selank	1 G	Mar 4, 2026
France	Selank	10 MT	Feb 28, 2026

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Product Details

Seller Information

Inquiry History

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