The Ordinary Multi-Peptide Lash and Brow Serum: Purity, Specification & Manufacturing Sourcing Guide

Core Molecular Specs & Technical Index

The Ordinary Multi-Peptide Lash and Brow Serum represents a sophisticated biomimetic formulation designed to support the natural density and appearance of eyelashes and eyebrows. For B2B buyers—including cosmetic contract manufacturers, private label formulators, and raw material distributors—understanding the precise molecular specifications is essential for quality assurance and regulatory compliance. This serum is built upon a synergistic blend of red clover flower extract, caffeine, and a proprietary multi-peptide complex that includes acetyl tetrapeptide-3, biotinoyl tripeptide-1, and myristoyl pentapeptide-17. The active peptide concentration typically ranges between 0.5% and 2.0% in the finished formula, with a pH optimized between 5.5 and 6.5 to ensure maximum stability and bioavailability.

• Purity Level: The peptide actives are sourced at ≥98% purity (HPLC verified), free from common contaminants such as heavy metals, endotoxins, and residual solvents.
• Solubility Profile: All peptides are water-soluble at room temperature, allowing for seamless integration into aqueous-based serum formulations without the need for emulsifiers or co-solvents.
• Stability Parameters: The finished product maintains >90% peptide activity for 24 months when stored at 2–8°C in airtight, light-resistant packaging. Accelerated stability tests at 40°C/75% RH confirm a 12-month shelf life.
• Molecular Weight Range: The active peptides fall within 500–1500 Da, ensuring optimal penetration into the hair follicle microenvironment without systemic absorption.
• Preservation System: A paraben-free, phenoxyethanol-based preservation system (0.5–1.0%) prevents microbial contamination while maintaining formulation integrity.

Industry data from the 2023 Cosmetics Europe Market Report indicates that peptide-based lash and brow serums now account for 34% of the global eye-area treatment market, with a compound annual growth rate (CAGR) of 11.2% projected through 2028. The demand for high-purity, multi-peptide blends—such as those found in The Ordinary Multi-Peptide Lash and Brow Serum—has driven a 27% increase in bulk peptide procurement among contract manufacturers over the past 18 months.

Manufacturing & Quality Control

The production of The Ordinary Multi-Peptide Lash and Brow Serum follows a rigorous, multi-stage manufacturing process that prioritizes molecular integrity and batch-to-batch consistency. The journey begins with solid-phase peptide synthesis (SPPS) using Fmoc chemistry, which allows for precise control over amino acid sequence and minimizes racemization. Each peptide is individually synthesized, purified via reversed-phase high-performance liquid chromatography (RP-HPLC), and lyophilized to a white, free-flowing powder. The final formulation is then compounded in a GMP-certified facility under ISO 22716 standards, with all water systems meeting USP purified water specifications.

Quality control protocols are exhaustive and include:

• Third-Party Testing: Every batch undergoes independent HPLC, mass spectrometry (MS), and amino acid analysis to confirm identity, purity, and sequence integrity. Certificate of Analysis (CoA) is provided for each lot.
• Microbiological Screening: Total aerobic microbial count (TAMC) < 100 CFU/g, total yeast and mold count (TYMC) < 10 CFU/g, with absence of Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli.
• Stability Studies: Real-time and accelerated stability testing (ICH Q1A guidelines) ensure the product maintains specifications for 24 months at 25°C/60% RH and 6 months at 40°C/75% RH.
• Certification List: GMP (ISO 22716), ISO 9001:2015, FDA-registered facility, EU CosIng compliance, and REACH registration for all peptide actives.
• Traceability: Full raw material traceability from synthesis to final packaging, with batch records retained for 10 years.

Commercial Application Scenarios

The versatility of The Ordinary Multi-Peptide Lash and Brow Serum makes it a cornerstone ingredient for multiple B2B applications. In the cosmetic formulation sector, it serves as a ready-to-use active base for private label lash and brow serums, where manufacturers can simply add their preferred preservatives, thickeners, and packaging. The serum's low viscosity (50–100 cP at 25°C) allows for easy filling into precision applicators such as micro-tip brushes or rollerball bottles.

For laboratory research, the serum provides a standardized reference formulation for studying peptide-mediated follicular biology. Research institutions and cosmetic science labs frequently use this product as a positive control in comparative studies evaluating new peptide sequences or delivery systems. The consistent peptide concentration and absence of irritants (e.g., prostaglandin analogs) make it an ethical and reproducible benchmark.

In bulk wholesale scenarios, distributors and contract manufacturers purchase the serum in 1 kg, 5 kg, or 20 kg HDPE drums for downstream processing. Common use cases include:

• Private Labeling: Repackaging into branded dropper bottles for boutique cosmetic lines.
• Custom Blending: Combining with additional active ingredients (e.g., hyaluronic acid, panthenol) to create hybrid lash and brow treatments.
• Industrial Scale-Up: Using the serum as a base for large-scale production of eye-area serums, with batch sizes up to 500 kg.

The Ordinary Multi-Peptide Lash and Brow Serum VS Ordinary Low-Grade Peptides

Bulk Purchase Selection Guide

When sourcing The Ordinary Multi-Peptide Lash and Brow Serum for commercial use, B2B buyers must navigate several common pitfalls to ensure they receive a product that meets their specifications. The most frequent issue is purity misrepresentation—some suppliers offer "peptide blends" that contain only 60–70% active peptide content, with the remainder being filler amino acids or hydrolyzed collagen. Always request a Certificate of Analysis (CoA) with HPLC chromatogram and mass spectrometry data before committing to a bulk order.

Another critical factor is the preservation system. Some low-cost alternatives use parabens or formaldehyde-releasing preservatives, which may conflict with "clean beauty" positioning or regulatory restrictions in certain markets (e.g., EU CosIng Annex V). Verify that the preservation system matches your target market's requirements. Additionally, confirm the serum's viscosity and pH—deviations can indicate improper formulation or degradation during storage.

Buyer checklist for bulk procurement:

• Request a 100g sample for in-house stability and compatibility testing before placing a full order.
• Verify third-party lab reports from an ISO 17025-accredited facility, not just the supplier's internal data.
• Check batch consistency by comparing CoAs from at least three different production lots.
• Confirm packaging integrity—HDPE drums should be food-grade, with tamper-evident seals and nitrogen flushing to prevent oxidation.
• Review lead times and minimum order quantities (MOQs), which typically range from 1 kg for small labs to 20 kg for industrial buyers.

Core Product Advantages

The primary advantage of sourcing The Ordinary Multi-Peptide Lash and Brow Serum lies in its uncompromising purity. With a minimum 98% peptide content verified by HPLC, this product eliminates the variability and inefficacy associated with lower-grade alternatives. This purity translates directly into formulation reliability—manufacturers can predict exactly how the serum will behave in their final product, reducing the need for costly reformulation or rework.

Stability is another cornerstone benefit. The serum's robust preservation system and optimized pH ensure a 24-month shelf life under proper storage conditions, which is critical for bulk buyers who may hold inventory for extended periods. This stability also extends to the final formulated product, allowing brands to offer consumers a consistent experience over time.

From a cost-performance perspective, the multi-peptide blend delivers superior value compared to single-peptide alternatives. By combining three complementary peptides—each targeting different aspects of hair follicle biology—the serum achieves a synergistic effect that often requires lower total peptide concentration. This means manufacturers can use less active ingredient per unit while still achieving comparable or better results, reducing overall formulation costs.

Finally, technical support from reputable suppliers includes formulation guidance, stability data, and regulatory documentation, enabling buyers to bring products to market faster and with greater confidence. Whether you are a contract manufacturer developing a private label line or a research lab conducting comparative studies, this product provides a reliable, high-quality foundation.

Frequently Asked Questions

Q1: What is the exact peptide composition in The Ordinary Multi-Peptide Lash and Brow Serum, and how does it differ from generic peptide blends?
The serum contains a proprietary blend of acetyl tetrapeptide-3, biotinoyl tripeptide-1, and myristoyl pentapeptide-17, each at concentrations optimized for synergistic activity. Unlike generic blends that may use undefined hydrolysates or single peptides, this combination targets multiple pathways involved in hair follicle cycling, including keratinocyte proliferation and extracellular matrix support. The exact ratios are proprietary, but the total active peptide content is consistently ≥98% purity.

Q2: Can this serum be used as a base for private label formulations without additional modification?
Yes, the serum is designed as a ready-to-use active base. However, for private labeling, we recommend adding a preservative system if the original preservation does not match your target market's regulations (e.g., EU vs. US). Additionally, you may adjust viscosity with thickeners like xanthan gum or incorporate complementary actives such as hyaluronic acid. Always conduct stability testing after any modification.

Q3: What documentation is provided with bulk orders to support regulatory filings?
Each bulk order includes a Certificate of Analysis (CoA) with HPLC purity data, mass spectrometry confirmation, microbiological test results, and stability summary. We also provide a Technical Data Sheet (TDS), Material Safety Data Sheet (MSDS), and a Regulatory Compliance Statement covering EU CosIng, REACH, and FDA status. For additional requirements, such as allergen declarations or GMO-free certifications, please specify at the time of order.