Selank 99% High Purity Heptapeptide Multiple Sizes: 5 mg / 10 mg per Vial

Product Description – The Science of Selank for Skin Research
Selank is a synthetic heptapeptide (Thr‑Lys‑Pro‑Arg‑Pro‑Gly‑Pro, also referred to in literature as Selank (acetate) [12†L14-L20]), composed of seven naturally occurring amino acids and structurally derived from the immunomodulatory tetrapeptide tuftsin, which originates from the human immunoglobulin G heavy chain.
The tuftsin core (Thr‑Lys‑Pro‑Arg) is elongated with a Pro‑Gly‑Pro C‑terminal sequence, a modification that significantly enhances enzymatic stability, prolongs biological activity, and optimizes the peptide’s ability to engage relevant skin‑expressed receptors [12†L20-L28][14†L2-L6].
Neuro‑Immune Modulation and Inflammatory Pathways
Skin health is intimately linked to neuro‑immune communication. Selank’s molecular mechanism offers a foundation for topical formulations aimed at stress resilience, inflammation control, and barrier support.
(1) GABA‑A Positive Allosteric Modulation – Selank enhances the binding of gamma‑aminobutyric acid (GABA) to its GABAA receptor by acting as a positive allosteric modulator, without directly occupying the benzodiazepine binding site [1†L18-L20][12†L30-L38]. While classically associated with nervous system signalling, GABAergic receptors are expressed in peripheral tissues including skin, where they regulate keratinocyte proliferation, inflammatory tone, and sensory responses. This provides a molecular basis for using Selank in formulations targeting skin exposed to environmental stressors.
(2) Reduction of Key Pro‑Inflammatory Cytokines – Preclinical studies show that Selank reduces the production of interleukin‑6 (IL‑6) and tumour necrosis factor‑alpha (TNF‑α), two major drivers of cutaneous inflammation [0†L6-L9][9†L32-L35]. Additionally, Selank down‑regulates the expression of inflammation‑related genes Il2rg and Xcr1 in immune‑competent tissues, indicating a systemic anti‑inflammatory effect that can also benefit dermal immune homeostasis [0†L28-L30][14†L10-L11].
(3) Dual Anti‑Oxidant Protection – Emerging research confirms Selank’s direct free‑radical scavenging capacity, helping to neutralise reactive oxygen species before they compromise collagen and elastin integrity [0†L39-L40][7†L44-L45]. By reducing oxidative burden, the peptide helps preserve the structural matrix of aged or environmentally stressed skin.
Tissue Repair and Wound Healing Evidence
The regenerative potential of Selank has been validated in experimental tissue‑repair models. A study published in 2020 specifically examined Selank’s regulatory effect on thermal burn wounds in rat skin [3†L26-L31][15†L6-L15]. Key findings include:
• Accelerated Granulation and Epithelialisation – Earlier onset of the repair phase, with granulation tissue formation and epithelial cell migration observed sooner than in controls.
• Reduced Destructive Processes – Purulent‑necrotic complications were absent, and degenerative changes within the epidermis and dermis were confined.
• Earlier Scab Rejection and Defect Closure – Partial closure of the wound defect occurred earlier, accompanied by initial signs of scar remodelling [15†L28-L38].
These data support Selank’s role in facilitating cutaneous repair, reinforcing its relevance for post‑procedure formulations and barrier‑restorative products.

Formulation Research Areas

DSIP is being explored in advanced skin care for:

• Anti‑aging serums – targeting oxidative stress and supporting collagen integrity

• Stress‑recovery creams – for skin exposed to pollution, lack of sleep, or daily urban stress

• Calming & redness‑reducing formulas – for sensitive, reactive, or post‑procedure skin

• Brightening & even‑tone products – by supporting healthy cell turnover and reducing oxidative pigmentation

1. Ultra-High Purity
Each batch is synthesized and purified to >99% purity (HPLC), ensuring reliable and reproducible results in sensitive experiments.
2.Accurate Dosing & Consistency
Our peptides are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is rigorously maintained.
3.Endotoxin-Free & Sterile Processing
Manufactured in a cleanroom environment, our peptides are free from endotoxins, microbial contamination, and other impurities that could interfere with cell-based or in vivo studies.

Sales manager:  Eira

whatsapp：+8619304441463 

whatsapp：+852 9546  9358

Email:  sales01@cnspks.com

1. Advanced Manufacturing Capabilities

Cutting-Edge Facilities: High-precision equipment ensuring purity and bioactivity.

Scalable Production: From milligram-scale research peptides to multi-kilogram industrial batches.

2. Innovation & Customer Commitment

Reliable Supply Chain: Competitive pricing & timely global delivery.

Global Reach: Trusted by researchers, pharmaceutical firms & industrial clients worldwide.

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.
Q2: Which payment is available for your company?
Re: T/T, PayPal,bank transfer etc. You can choose the one which is convenient for you.
Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) or by air. Usually it will cost 5-7days that you can get the goods after delivery.For large quantity products, shipping by see is worthwhile.It will cost 15 to 30 days to come to your destination port, which depends on where the port is.
Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd lik.

1. Expertise in Peptide Synthesis
Extensive Experience: 7 Years of expertise in synthetic peptide development.
Skilled Team: Experts in solid-phase and liquid-phase synthesis.
2. Advanced Manufacturing Capabilities
Cutting-Edge Facilities: High-precision equipment ensuring purity and bioactivity.
Scalable Production: From milligram-scale research peptides to multi-kilogram industrial batches.
3. Innovation & Customer Commitment
Reliable Supply Chain: Competitive pricing & timely global delivery.
Global Reach: Trusted by researchers, pharmaceutical firms & industrial clients worldwide.
4. Ultra-High Purity
Each batch is synthesized and purified to >99% purity (HPLC), ensuring reliable and reproducible results in sensitive experiments.
5.Accurate Dosing & Consistency
Our peptides are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is rigorously maintained.
6.Endotoxin-Free & Sterile Processing
Manufactured in a cleanroom environment, our peptides are free from endotoxins, microbial contamination, and other impurities that could interfere with cell-based or in vivo studies.

Why Choose Our Peptides?

• Quality Assured: Sourced from trusted manufacturers with reliable global distribution, ensuring consistency and potency .
• Holistic Support: Complements weight management programs, metabolic health goals, and sleep apnea treatment plans—addressing root causes for lasting impact .
• 
  

• Why Partner with us?

  
  Quality Assurance:

  Manufactured in GMP-certified facilities with full traceability and regulatory-aligned documentation.
  

  Flexible Supply:

  Available in multiple formats. Consistent lead times with flexible production capacity.
  

  Competitive Edge:

  Factory-direct pricing with volume discounts; stable supply chain to meet your market demand.
  

  Technical Support:

  Full documentation and formulation guidance.