CAS-129954-34-3Hot Selling Best Price and 99.9 High Purity Selank Semax Retatrutide Peptide

Name: Jane
Whatsapp/WeChat: +86 13293126215
Email: Jane@duole-tech.com

Selank (CAS number: 129954-34-3) is a synthetic heptapeptide with the amino acid sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro. First developed by Russian scientists in the 1990s, it was inspired by natural human immunoglobulin peptides like Tuftsin, aiming to enhance anti-anxiety efficacy with reduced side effects through structural optimization. Currently, it is primarily used in scientific research (e.g., in neuropharmacology studies and drug development as an intermediate for anti-anxiety and antidepressant drugs) and in the customized synthesis of cosmetic peptides. Typically available as a white powder with purity ≥98%, it requires low-temperature storage (e.g., 2-8°C) to prevent degradation.
Antianxiety effect: By enhancing the activity of the GABA (gamma-aminobutyric acid) system, it produces a sedative effect. Animal experiments show its efficacy is comparable to diazepam (Valium), but it does not cause motor dysfunction or dependency.
Cognitive and emotional improvement: It may regulate monoamine neurotransmitters such as serotonin and dopamine, thereby improving memory, learning ability and emotional state. Meanwhile, it can also up-regulate brain-derived neurotrophic factor (BDNF) to promote neuronal growth.
Other mechanisms: It may also inhibit endorphin degrading enzymes and regulate stress-related gene expression, but the specific molecular targets are still under investigation.

Changsha Duole Technology Co., LTD was established in 2018 ，We mainly engage in peptides, synthetic peptide amino acids, beauty and weight - loss products, as well as raw materials for beauty and freckle - removing cosmetics, all of which are of reliable quality. Committed to strict quality control and thoughtful customer service, our experienced staff are always ready to discuss your requirements to ensure customer satisfaction. "Quality first, service foremost" summarizes our business philosophy. We firmly believe that prioritizing quality in all aspects of operations and providing excellent service lay the foundation for long - term success. Our mission is to lead the advancement of biotechnology by consistently adhering to the highest standards of quality and service. We hope to contribute to improving global health through innovation and excellence. We focus on high quality, competitive prices, flexible order quantities and timely delivery. Our products are mainly exported to European countries, the United Kingdom, the United States, Canada and Australia. We have extensive export experience and have never encountered any customs clearance issues. By focusing on sourcing materials of perfect quality and ensuring strict internal process control, our products have been widely recognized and trusted by users.

1.We are very experienced with this field;
2.Good after-sales service
3.100% quality guaranteed;
4.Reasonable & competitive price, fast lead time.;
5.Strong supply ability
6.Made in China ,high credit guarantee.

Q1: About the after-sale service
A: After purchasing the products from our Lab, we have A professional technical team and after-sales team to serve you and solve all your problems in the future

Q2:  I want to know more details about the product, how can I contact you?
A: You can send us an email inquiry at any time. For more accurate quotes, I need the following information: product name, order quantity, receipt country, quality requirements, etc.

Q3: Can I get some samples?
A:Yes, we can provide samples, but the customer will pay the shipping cost.

Q4: About the seller's response
A: We will respond to your message in a timely manner. We guarantee to respond to you within 24 hour

Q5: What is your MOQ?
A: The minimum quantity we can order is 1 box.

Q6: Can you give me a discount price?
A:Surely,It depend on your quantity. 

Q7:  How to preserve peptides after receiving them?
A: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.