Descriptiopn
Name:Alice
Whatsapp:+852 5513 4538
Email:alice@tongpeptides.com
Name:Alice
Whatsapp:+852 5513 4538
Email:alice@tongpeptides.com
PI5 is a refined, high-purity bioactive peptide developed for advanced cosmetic formula innovation and modern scientific skincare manufacturing. Manufactured through precise solid-phase synthesis and multi-stage low-temperature purification and lyophilization techniques, this premium raw material features a stable molecular structure, reliable activity and outstanding water solubility. Every production procedure follows standardized industrial quality control systems, with each batch undergoing strict impurity removal, activity verification and stability screening. It maintains excellent batch consistency and high biological safety, offering superior skin affinity and universal formula compatibility to meet the global demand for mild, stable and science-backed skincare active ingredients.

The core advantage of PI5 lies in its gentle yet effective skin microenvironment conditioning performance. Daily skin endures continuous external interference including dry climate, light exposure and environmental impurities, alongside cumulative metabolic pressure that gradually weakens skin condition. These common factors often result in uneven texture, dull-looking complexion and reduced skin vitality. As a finely optimized peptide ingredient, PI5 works to balance cutaneous metabolic circulation and ease persistent oxidative tension in skin tissues. Rather than delivering temporary superficial improvements, it focuses on long-term gradual conditioning, refining rough skin texture, boosting skin clarity and uniformity, and reviving the skin’s naturally smooth and luminous appearance.

PI5 provides comprehensive supportive benefits for daily skin barrier maintenance and delicate skin care. It effectively replenishes cutaneous moisture and forms a thin, breathable protective layer on the skin surface, sustaining long-lasting hydration and relieving common discomforts such as dryness, tightness and flakiness. Its abundant skin-friendly components help stabilize the skin’s natural barrier structure, enhance skin tolerance toward seasonal fluctuations and external irritation, and alleviate subtle skin sensitivity. With ultra-mild and low-irritation properties, PI5 adapts well to all skin types, especially fragile and sensitive skin with limited self-regulation ability.

Featuring excellent formula flexibility and stability, PI5 can be smoothly incorporated into brightening essences, moisturizing lotions, barrier repair creams and various high-end daily skincare products. It can be freely compounded with most mainstream cosmetic active components without causing stratification, discoloration or activity loss. Backed by complete qualification documentation and steady long-term supply capacity, PI5 has emerged as a trusted innovative peptide raw material for skincare brands dedicated to mild, safe and long-term skin vitality maintenance.
Shipping Method 
Introduction to Our Factory
We are a professional and reliable peptide manufacturing factory in China, focusing on the R&D, production and supply of high-purity research-grade peptides and biochemical raw materials. Adhering to strict production standards and complete quality control systems, we are committed to providing cost-effective, high-quality peptide products and stable global supply services for international customers.
Quality is our core advantage. All our peptide products adopt advanced synthesis and purification technology, with universal HPLC purity over 99%. Every batch of goods undergoes strict laboratory testing, including high-performance liquid chromatography and mass spectrometry analysis. Complete test reports are provided to ensure stable ingredient content, low impurity rate and consistent product quality. All products are lyophilized and sealed in sterile independent vials to guarantee long-term stability during international transportation and storage.
Compared with other suppliers in the industry, we offer obvious price advantages. With independent production bases, standardized assembly lines and integrated supply chain management, we effectively reduce intermediate costs. We provide factory-direct wholesale prices while maintaining top-tier purity and quality, helping customers maximize profit margins with high cost performance.
Sufficient in-stock inventory covers mainstream peptide products, enabling rapid shipment within 1–3 working days after order confirmation. We have long-term cooperative professional freight teams, supporting stable and safe shipping to Europe, America, Southeast Asia, South America and other regions worldwide. With rich international export experience, our professional document sorting and standardized packaging greatly improve customs clearance pass rate, effectively avoiding customs detention risks and ensuring safe and smooth delivery of each order.
We always insist on standardized export procedures, stable quality control, competitive factory prices and efficient after-sales service, aiming to become your most trustworthy long-term peptide supply partner. All products are for laboratory research use only, not for human clinical use. 
Q1: Why should you buy from us instead of other suppliers?
A1: Because we are a factory, we can provide lower prices and guaranteed quality. We have extensive experience in domestic and foreign trade and provide services in an honest, timely and efficient manner.
Q2: When can I receive the package?
A2: It will be shipped as soon as possible after payment, and the shipping time is generally 7 to 12 days.
Q3: What is the minimum amount I can order?
A3: The minimum quantity we can order is 1 box, which contains 10vials.
| Items | Specifications |
| PI5 | 5mg *10vials |
| PI10 | 10mg *10vials |
| PI20 | 20mg *10vials |
ECHEMI Editorial Reference
LL-37, Human acetate is a 37-residue, amphipathic, cathelicidin-derived antimicrobial peptide, which exhibits a broad spectrum of antimicrobial activity.
Research & Reference Note
PI5| TongPeptides | 99% Purity |COA 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.
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
Indonesia
