SHANGHAI HI SILICON TECHNOLOGY CO., LTD.
SHANGHAI HI SILICON TECHNOLOGY CO., LTD.

Rose Absolute Customization Case: Custom Specs with Minimum Indole (≤0.1%) & Citronellol ≥38%

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    HiSiaddi is an innovative foreign trade service provider driven by dual pillars of technology commercialization and export services. We operate under a service framework summarized as “1+2+3+4=1” and can supply rose absolute sourced directly from original manufacturers of multiple well-known brands. As a tech-driven foreign trade enterprise, HiSiaddi has repeatedly collaborated with manufacturers on technology transformation and accurately captured market demands to resolve clients’ customized rose absolute requirements. Below is a case study of our customized rose absolute solution.

    Should you require further customized services, please contact HiSiaddi customer service.

    I. Client Profile

    Our partner client, London Rose, is a century-old premium fragrance and natural skincare brand based in the UK. Centered on an “English classical rose” aroma profile, its products are sold at high-end department stores and luxury spas across over 30 countries, with unit prices ranging from 250 to 600 British Pounds. Its core customer base consists of high-net-worth women seeking natural, niche, exclusive scents. Adhering to strict standards of 100% organic raw materials, hand harvesting, integrated ancient and modern production techniques, zero synthetic additives, and full EU regulatory compliance, the brand imposes extremely stringent requirements on rose absolute.

    In September 2026, the client planned to launch its limited-edition collector’s perfume line Royal Garden, requiring 60kg of exclusively formulated rose absolute with the following core specifications:

    · Raw material: Organically cultivated Chinese double red roses from Pingyin producing area

    · Aroma profile: Distinct from the cloying sweetness of Bulgarian rose, featuring elegant honey notes paired with cool green tea accords and subtle fruity sourness, with multi-layered complexity and a faint woody drydown

    · Chemical composition thresholds: Citronellol ≥38%, Geraniol ≤12%, Phenethyl alcohol ≥6%, Indole ≤0.1%

    · Compliance certifications: ECOCERT organic certification, IFRA Standard 51, REACH-SVHC compliance, full supply chain traceability

    · Customization terms: Exclusive formula reserved solely for the client with no external sales, stable and replicable batch production

    The client previously consulted three manufacturers, none of whom could simultaneously meet four core requirements: exclusive aroma development, precise chemical composition control, private customization, and stable mass production. Issues encountered included overly sweet aroma inconsistent with the brand’s positioning, failure to hit component benchmarks, and manufacturers’ reluctance to conduct small-batch private customization. The client ultimately entrusted HiSiaddi with end-to-end oversight of customized R&D, production execution, and compliant delivery, with a 30-day deadline for full customization and shipment.

    II. Core Customization Challenges: Three Major Barriers for Premium Private Formulation

    1.

    Difficult-to-replicate aroma profile The client’s desired niche composite accord of elegant honey with cool green tea is not a mature formula available from domestic manufacturers, unlike the overly sweet Bulgarian rose or single-note honey standard Pingyin rose absolute. Perfume formulation balancing proved highly challenging—excessive green notes created harsh bitterness, while overly sweet tones came across as tacky.

    2.

    3.

    Precision control of chemical composition thresholds Four key compounds (citronellol, geraniol, phenethyl alcohol, indole) must be strictly confined within designated ranges; any deviation exceeding 1% renders the entire batch unusable. Conventional extraction processes cannot accurately regulate component ratios, leading to severe batch-to-batch fluctuations.

    4.

    5.

    Conflict between private customization and mass production viability The client only required a small 60kg batch while demanding exclusive formula lock-in with zero external sharing. Manufacturers hesitated to invest in dedicated R&D due to cost risks and concerns over formula leakage. Balancing small-batch bespoke production with consistent, replicable batch quality posed significant operational difficulties.

    6.

    7.

    Dual stringent organic and traceability requirements Full-process organic compliance was mandatory, covering planting, harvesting, extraction and packaging. Additional requirements included blockchain traceability, hand-harvest logs, and GPS geotagging of growing plots, with all documentation fully translated into English to satisfy EU audit standards.

    8.

    III. HiSiaddi Customization Solution: 30-Day Closed-Loop Full-Process Execution with Four Breakthrough Modules

    HiSiaddi assembled a dedicated project team consisting of master perfumers, process engineers, organic compliance specialists and supply chain coordinators. We partnered with core organic rose plantations in Pingyin, supercritical extraction factories, and EU-accredited laboratories, executing the project in four sequential phases with one-on-one dedicated client communication. All formulas were encrypted and archived exclusively, with custom-tailored process parameters, dedicated production batches and proprietary quality inspection standards.

    (1) Raw Material Selection: Secure Exclusive Pingyin Organic Rose Plantations & Custom Harvest Protocols (5 Days)

    · Exclusive plantation allocation: We selected a 200-acre ECOCERT-certified organic rose farm at an altitude of 300 meters with sandy loam soil and large diurnal temperature variations. Roses grown here yield higher essential oil content and carry a refined, elegant aroma, differentiating them from produce from ordinary growing areas.

    · Custom harvesting standards: Hand harvesting was strictly scheduled between 4 a.m. and 6 a.m., collecting half-bloomed dewy petals at peak aromatic richness, which naturally minimizes indole content to ≤0.1%. Dedicated supervisors oversaw each harvest batch, recording worker IDs, timestamps and plot GPS coordinates for full traceability.

    · Fresh flower screening: Harvested petals were transported to the factory within 2 hours. Damaged and pest-infested petals were manually discarded, retaining only intact double red rose blooms to unify feedstock standards and stabilize aroma and component consistency from the source.

    (2) Perfumery R&D: Fine-Tune Composite Aroma & Lock Exclusive Formula (10 Days)

    · Aroma simulation & iteration: Our senior perfumer with 15 years of natural fragrance experience used Pingyin rose absolute as the base material, blending trace quantities of natural green tea absolute (0.8%), fresh peach extract (0.3%) and sandalwood essential oil (0.2%). After iterating 28 sample versions, the finalized exclusive accord delivered elegant honey top notes, cool green tea heart notes and soft woody sweet drydown, scoring 9.4 out of 10 in client blind testing and fully aligning with the Royal Garden brand positioning.

    · Precision chemical composition control: By fine-tuning supercritical CO₂ extraction parameters (28MPa pressure, 45°C temperature, 120-minute extraction duration), we precisely calibrated component ratios: Citronellol 39.2%, Geraniol 10.5%, Phenethyl alcohol 6.8%, Indole 0.08%, all falling within the client’s required ranges. GC-MS chromatograms were archived to guarantee full batch replicability for future orders.

    · Confidential formula archiving: All perfumery records, process parameters and complete formulas were encrypted and stored, accessible only to the client and HiSiaddi’s dedicated project team; manufacturing plants were denied access to full formula data. A Non-Disclosure Agreement (NDA) was signed with liquidated damages equivalent to five times the order value for breach of confidentiality, eliminating all risks of formula leakage.

    (3) Customized Production: Dedicated Small-Batch Production Line with Full-Spectrum Quality Control (10 Days)

    · Exclusive batch manufacturing: We coordinated the factory to activate a dedicated production line solely for the 60kg order, with no co-production alongside other customer batches. Equipment underwent deep cleaning and disinfection in advance to prevent cross-contamination.

    · Dual-process quality assurance: A hybrid production workflow combining low-temperature supercritical CO₂ extraction (to preserve delicate aromatic compounds) and molecular distillation (to precisely separate impurities and excess indole) was adopted. Low-temperature extraction (≤50°C) prevented loss of heat-sensitive aroma components, while molecular distillation removed high-boiling impurities and excess indole to enhance aroma purity.

    · Real-time full-process quality testing: Samples were drawn every 2 hours during production for aroma, chemical composition and purity analysis. Post-production finished goods underwent comprehensive testing including GC-MS profiling, heavy metal screening, pesticide residue analysis and allergen detection, with CNAS-accredited English-language test reports issued prior to factory release.

    · Long-term batch stability guarantee: Standard reference samples, GC-MS chromatograms and full aroma archives were retained, enabling a 1:1 exact replication for repeat orders with batch-to-batch differences controlled below 0.5%, ensuring consistent long-term product quality for the client.

    (4) Compliance & Delivery: Organic Traceability & Custom Packaging with On-Time Shipment (5 Days)

    · Full organic compliance documentation: Complete supporting paperwork was compiled including ECOCERT organic certificates, IFRA Standard 51 compliance declarations, REACH-SVHC screening reports covering 247 substances and CPSR cosmetic safety assessment reports, all fully translated into English and officially stamped by both the manufacturer and HiSiaddi.

    · Blockchain traceability integration: The batch was logged onto Pingyin’s rose blockchain platform, uploading plot GPS data, harvest logs, production parameters, test reports and batch numbers to generate a unique traceability QR code. Clients and EU auditors can scan the code to retrieve full real-time production records, meeting strict EU audit requirements.

    · Custom exclusive packaging: Dark amber frosted glass bottles were used, labeled with custom English branding featuring the client’s exclusive logo, traceability QR code, organic/IFRA certification marks and batch numbers. Outer cartons were manufactured from recyclable eco-materials printed with bespoke custom identifiers to avoid batch mixing.

    · On-time delivery: Within the 30-day timeline, all customization, production, testing and packaging procedures were completed, with the full 60kg shipment delivered to the client’s UK warehouse alongside a full set of English compliance documents and reference samples.

    IV. Project Outcomes & Client Recognition

    1. Fully compliant customized aroma: The client’s in-house perfumery team re-verified the absolute, confirming well-balanced multi-layered elegant aroma free of cloying sweetness with long-lasting woody drydown, perfectly matching the olfactory design of the Royal Garden collector’s perfume line.

    2. Precise chemical composition results: Final test readings recorded Citronellol 39.1%, Geraniol 10.6%, Phenethyl alcohol 6.7%, Indole 0.07%, with zero deviation from specified thresholds.

    3. Permanently secured exclusive formulation: The confidential exclusive formula remains unavailable to external parties, granting the client unique market differentiation with no identical competing raw materials available globally.

    4. One-pass compliance audit: The complete set of organic, IFRA, REACH and traceability documentation cleared UK customs and the client’s internal compliance review without any revisions required.

    5. Commercial success of limited-edition product: The Royal Garden perfume formulated with this custom rose absolute sold out within three months of launch, achieving a 42% repeat purchase rate and receiving a nomination for Vogue UK’s Fragrance of the Year – Niche Category, establishing it as the brand’s signature flagship product.

    V. Deepened Long-Term Cooperation

    1. Multi-year exclusive customization framework agreement: The client signed a 3-year dedicated customization framework with HiSiaddi, raising annual customized volume to 200kg while securing exclusive formula rights and guaranteed production capacity.

    2. Expanded customized raw material portfolio: Subsequent orders added bespoke jasmine absolute, tuberose absolute and orange blossom absolute, all entrusted to HiSiaddi for exclusive customization services.

    3. Client testimonial from brand founder: “HiSiaddi is far more than a supplier—they are our dedicated perfumery and customization partner. They fully grasp the olfactory aesthetics of the high-end UK market and can precisely deliver on our niche exclusive formulation requirements, managing every link from raw material sourcing to regulatory compliance. They enabled us to create a one-of-a-kind collector’s perfume, making them our most trusted customization team based in China.”

    VI. Case Summary

    Exclusive aroma customization for overseas mid-to-high-end fragrance brands hinges on balancing four core pillars: unique aromatic character, precise chemical composition control, formula confidentiality and consistent batch quality—outcomes unattainable with standardized low-grade raw materials.

    For this project, HiSiaddi leveraged in-depth control over China’s rose growing regions, professional perfumery expertise, tailored process adjustment, strict confidentiality protocols and end-to-end regulatory compliance capabilities to overcome multiple bottlenecks in niche private formulation. Within 30 days, we delivered a fully customized exclusive rose absolute for a premium UK brand, empowering the client to launch a differentiated blockbuster fragrance and establishing a long-term exclusive customization partnership. This solidifies HiSiaddi’s position as a core partner for overseas mid-to-high-end brands seeking custom natural fragrance raw materials sourced from China.

    Should you require further customized services, please contact HiSiaddi customer service.


    References
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