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I. Core Pharmacological Mechanism
1. Regulate central 5-hydroxytryptamine (serotonin), dopamine, and GABA, balancing emotional neurotransmitters;
2. Inhibit elevated cortisol (stress hormone) caused by chronic stress;
3. Enhance brain-derived neurotrophic factor (BDNF) in the brain, repairing nerve cells damaged by stress;
4. Moderately regulate the immune system, reducing systemic inflammation triggered by stress.
II. Main Physiological and Psychological Effects
1. Anti-anxiety and stress relief (core function)
- Quickly alleviate social anxiety, public speaking anxiety, inexplicable nervousness, and a sense of impending death;
- Reduce generalized anxiety: persistent worrying, random thoughts, restlessness;
- Different from sleeping pills: no drowsiness, no dizziness, does not affect the clarity of thinking, can be used during the day without feeling sleepy.
2. Improve stress and reduce cortisol
Applicable to people with long-term high pressure: staying up late, work intensification, emotional depletion, exam/pre-work high pressure.
- Reduce palpitations, chest tightness, muscle tension, and gastrointestinal stress discomfort caused by stress;
- Stabilize the hypothalamus-pituitary-adrenal axis (HPA axis), improve long-term stress imbalance.
3. Improve mood and mild anti-depression
For stress-induced mild depression, low spirits, lack of energy:
- Enhance the sense of pleasure and motivation, relieve numbness and emptiness;
- Assist in improving seasonal depression.
4. Enhance concentration and cognitive ability
Stress anxiety can disrupt attention. Selank can:
- Reduce distraction and excessive thoughts, improve focus during study/work;
- Improve short-term memory and reaction speed;
- Without stimulant-like palpitations or depletion sensation, the effect is mild and stable.
5. Regulate sleep (indirect improvement, not a hypnotic drug)
Not directly help sleep, but eliminate insomnia caused by anxiety:
- Worrying and panicking before sleep, difficulty falling asleep;
- Reduce frequent waking up at night, anxiety and frequent dreams;
- No hangover or dizziness side effects in the morning.
6. Regulate immunity and anti-inflammation
Chronic stress weakens immunity. Selank can:
- Reduce stress-induced systemic low-level inflammation;
- Reduce stress-related repeated colds and fatigue and weakness.
7. Relieve somatic symptoms
Physical discomfort caused by anxiety:
Palpitations, shortness of breath, dizziness, shoulder and neck stiffness, functional gastrointestinal disorders, inexplicable physical pain.

Hong Kong Biopetide Research Limited is a high-tech enterprise specializing in the research, development, production, and sales of peptide products. The company boasts advanced laboratories and a rigorous quality control system, with its products having obtained multiple international certifications, ensuring safety and efficacy.
Its customers are spread across Europe, the United States, Southeast Asia, the Middle East, and other regions.
Biotechnology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of peptide products. With advanced laboratories and a rigorous quality control system, our products have obtained international certification, ensuring safety and efficacy.
As a global trading company, we provide customized solutions to customers across Europe, the United States, Southeast Asia, the Middle East, and many other regions. Upholding the philosophy of "technology leading health," we are committed to innovation, striving to deliver high-quality health products to consumers worldwide. Our business principles focus on establishing a strong domestic market presence, increasing R&D investment, manufacturing premium products, and leveraging technology to promote environmental protection and sustainable development. At the same time, we actively expand into international markets, serve society with sincerity, and aim to become a modern, eco-friendly, and technologically advanced enterprise that meets global standards. Contact Us

Our products have been exported to 130 countries and regions. We are committed to building stable, strategic, and long-term partnerships with suppliers and customers both domestically and internationally, working together to create a brighter future.

1. We are the source factory of raw materials, offering high-quality and high-purity raw materials at wholesale prices.
2. We can provide global delivery services and have an exclusive delivery team to ensure safety and speed.
3. You can contact us to inquire about any products. Our product range is extensive and we support customization to meet your needs as much as possible.
4. We support various payment methods and all details can be negotiated.
5. If you have any questions, please feel free to contact me. I will do my best to answer your questions for you.
6. Firstly, we guarantee the quality of the products; secondly, we guarantee the efficiency of transportation and the clearance rate; thirdly, we will provide you with the best service in all aspects.

You get what you pay for. If you have any questions, I will answer them all.

We mainly adopt dedicated logistics and FedEx transportation methods, which can ensure timely shipment, quick delivery, stable logistics tracking, and safe and punctual delivery.