Dipeptide-15 powder: Advanced Skin Texture & Pore Refining Dipeptide (≥98% HPLC)

Core Selling Points

✅ ≥98% HPLC Purity: Certified high-purity for consistent pore-refining research.

✅ Targeted Pore Minimization: Effectively studied for its ability to smooth skin surface.

✅ Exfoliation Control: Validated mechanism for investigating non-irritating skin renewal.

✅ China Peptide Manufacturer: Specialized production facility for functional dipeptides.

✅ Structural Identity Verification: Every batch confirmed by high-resolution LC-MS.

✅ Complete Documentation: Full support for lab audits, including COA and MSDS.

What Is Dipeptide-15 Powder?

Dipeptide-15 is a synthetic, low-molecular-weight peptide recognized in laboratory research for its profound impact on skin texture. In dermal studies, it is primarily utilized to investigate the mechanisms of pore size reduction and the improvement of the skin's micro-relief. Dipeptide-15 powder functions by modulating the keratinization process and supporting the structural integrity of the pore wall. This mechanism makes it a primary tool for studying the prevention of pore enlargement and the development of "glass skin" models in 3D tissue equivalents.

The production of this high-stability dipeptide requires precise control over the coupling of specific L-amino acids to ensure zero contamination from diastereomers. HDM BIO utilizes advanced solid-phase peptide synthesis (SPPS) and preparative RP-HPLC to isolate the pure monomeric fraction. We supply this high-stability powder to global cosmetic R&D centers and pharmaceutical research institutes focusing on skin-smoothing biotechnology.

Research-only disclaimer: For pre-clinical laboratory investigation only. Not for human clinical use, diagnosis, or medication.

What Are The Quality Specifications?

Item	Specification	Result
Appearance	White to off-white powder	Consistent
Purity (HPLC)	≥98%	99.87%
MS Identity	Consistent with reference standard	Confirmed
Conclusion	Cosmetic raw material requirement	Passed

Dipeptide-15 vs. BHA (Salicylic Acid): What Are The Differences?

Feature	Dipeptide-15	Salicylic Acid (BHA)
Mechanism	Peptide Signaling / Pore Structure	Chemical Exfoliation (Desmolytic)
Irritation Risk	Extremely Low (Peptide-based)	Moderate (Acidity-related)
Research Focus	Texture Refinement / Pore Wall	Sebum Control / Acne Treatment
Stability	High Stability	High Stability
Solubility	Water-Soluble	Oil-Soluble

Manufacturing Process

Our production follows a standardized functional peptide synthesis protocol:

Chain Assembly: Stepwise synthesis of the dipeptide backbone via optimized SPPS.
Sequence Verification: Specialized monitoring to ensure zero deletion errors during coupling.
RP-HPLC Purification: High-resolution isolation to reach ≥98% monomeric concentration.
Lyophilization: Vacuum freeze-drying to ensure the Dipeptide-15 powder remains stable for long-term storage.
Quality Release: Final confirmation via LC-MS to verify the identity and purity.

Structural Stability Control:

The efficacy of the peptide depends on the precise sequence fidelity. HDM BIO monitors every step to ensure our products meet the highest analytical standards for research reproducibility.

Research Grade vs. Cosmetic Grade

Category	Research Grade	Cosmetic Grade
Primary Purpose	Pre-clinical / Lab research	Commercial formulation
Documentation	COA / HPLC / LC-MS / AAA	MSDS / COA / TDS
Purity Standard	Typically ≥98%	Typically ≥95%
Supply Channel	Specialized R&D Suppliers	Raw Material Suppliers

Why Supplier Qualification Matters

Supplier qualification is critical when sourcing functional peptides to avoid truncated fragments that can skew experimental data. For Dipeptide-15 powder, it is essential that the manufacturer validates the monomeric purity through HPLC, as residual coupling agents (like HBTU or EDC) can be toxic to sensitive cell culture models. Reliable suppliers provide batch-specific chromatograms and ensure the removal of trifluoroacetic acid (TFA) to protect the viability of keratinocyte assays.

Price & Bulk Order Guide 2026

MOQ: Flexible; from 1g research samples to 5kg+ industrial bulk orders.
Samples: Paid test samples available with full QC documentation.
Bulk pricing: Tiered pricing structure; larger volumes deliver highly competitive unit costs.
Lead time: Standard batches are usually in stock; bulk custom orders take 2 weeks.
Quotation: Contact our sales team for the latest formal quotation based on your specific purity requirements.

Why Choose HDM BIO As Your Supplier?

Antioxidant Experts: Over 10 years of experience in the synthesis of glutathione and its derivatives.
High-Purity Guarantee: Advanced purification ensuring ≥99% purity and zero oxidized GSSG.
Rigorous Analytical QC: Every batch confirmed by HPLC, LC-MS, and NMR.
Global Shipping Support: Fast, secure export to 70+ countries with customs-ready documentation.
Technical Support: Direct assistance with solubility, redox stability, and formulation compatibility.

Main Research Applications

Pore Size Mapping: Investigating the reduction of pore volume in skin-equivalent models.
Skin Micro-relief Analysis: Studying the smoothing effect of peptides on the stratum corneum.
Keratinization Modulation: Researching how peptides influence the even distribution of keratinocytes.
"Glass Skin" Models: Evaluating the physical lucidity and texture of skin treated with dipeptides.

FAQs

Q: What is the main benefit of Dipeptide-15 powder for skin research?

A: It is primarily studied for its ability to refine skin texture and minimize the appearance of pores. Unlike harsh exfoliants, it works through biological signaling to support the structure of the pore wall and smooth the skin surface.

Q: How do you dissolve Dipeptide-15 for laboratory assays?

A: It is highly water-soluble. For research, it should be dissolved in deionized water or PBS at a neutral pH. It is recommended to maintain a pH range of 4.5 to 6.5 for optimal stability.

Q: Can this peptide be used with Retinol or Niacinamide?

A: Yes. In research contexts, Dipeptide-15 is often studied alongside Niacinamide to evaluate synergistic effects on pore reduction and skin brightening.

Q: How should I store the powder?

A: Lyophilized powder should be stored sealed at -20°C, protected from light and moisture. Correct storage ensures stability for up to 24 months.