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Alpha Arbutin CAS 84380-01-8 99% HPLC Cosmetic Grade Supplier: Your Technical Partner for Premium Skincare Formulations

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Author : Samantha Song
Update time : 2026-08-25 11:55:48

Understanding Alpha Arbutin: Specifications That Matter

Alpha vs. Beta Arbutin: A Technical Comparison

Understanding the differences between α‑ and β‑arbutin is essential for formulation decisions:


Propert                                                    

Alpha Arbutin (Premium Grade)

                 Beta Arbutin (Standard Grade)

CAS No.

84380-01-8

                 497-76-7

Production Method

Enzymatic fermentation / biosynthesis

                 Chemical synthesis or plant                                             extraction

Tyrosinase Inhibition

Superior—approximately 10× stronger than beta form

                 Standard efficacy

Recommended Dosage

0.2–2.0%

                 2–7%

Stability

Higher thermal and photostability; pH range 4.0–8.0             

                 More prone to degradation

Specific Optical Rotation

+174° to +186° (identifies α configuration)

                 −63° to −67°

Regulatory Acceptance

Preferred by EU and US premium brands

                 Widely used in Asian mass-market                                   products


Stability and Safety Data from SCCS Evaluation

The EU Scientific Committee on Consumer Safety (SCCS) has evaluated alpha-arbutin stability in detail:

--- No measurable degradation of alpha-arbutin was observed over 3 months at 40°C, regardless of pH

--- Hydroquinone formation is temperature-dependent and ranges from 13–18 ppm in fresh formulations to 43–48 ppm after 3 months at 40°C

--- Buffer-stabilized formulations can reduce initial hydroquinone levels to 1–3 ppm (near detection limits)

--- Recommended use concentration: 2% alpha-arbutin remains stable at both pH 5 and pH 6

 

pH Compatibility

--- Alpha-arbutin demonstrates optimal stability in the pH range of 5.0–8.0

--- Avoid formulations with pH below 3.0 (strong acids accelerate glycosidic bond hydrolysis)

--- Avoid pH above 8.0 (strong bases promote hydroquinone release)

--- For pH adjustment, use citric acid (to lower pH) or sodium bicarbonate (to raise pH)

 

Temperature Sensitivity

--- Store alpha-arbutin below 40°C to maintain stability

 

--- Incorporate during the cool-down phase at 35–40°C when possible

--- Avoid adding to hot emulsions above 60°C to prevent degradation

 

Solubility Profile

Solvent

                              Solubility

                                        Application Recommendation

Water

                Freely soluble (>50% at 25°C)

                                        Ideal for aqueous formulations

Propylene Glycol

                Soluble (~30% at 25°C)

                                        Good alternative for solubilization

Ethanol (95%)

                Slightly soluble (~5% at 25°C)

                                        Limited use in hydroalcoholic systems

Oils

                Insoluble

                                        Requires emulsification for oil-based formulas

 

Ingredient Compatibility

Synergistic Combinations for Enhanced Performance:

--- Niacinamide (2–5%): Complements melanin inhibition without stability conflicts

--- Vitamin C Derivatives: Use ascorbyl glucoside or ethyl ascorbic acid to avoid pH compatibility issues

--- Licorice Extract (Glabridin, 0.5–2%): Synergistic tyrosinase inhibition documented in studies

--- Tranexamic Acid (2–3%): Particularly effective for melasma applications

--- Ferulic Acid (0.5–1%): Antioxidant protection enhances photostability


Supplier Documentation: What Your Quality Team Expects

A professional supplier should provide the following upon request:

--- Certificate of Analysis (CoA): For each batch, confirming ≥99% purity by HPLC, hydroquinone residue levels (≤1 ppm preferred), heavy metal content, and microbiological limits

--- Material Safety Data Sheet (MSDS): Globally Harmonized System (GHS)-compliant

--- Kosher/Halal Certification: For brands targeting specific consumer segments

--- Stability Data: Supporting shelf life claims (typically 24 months in sealed, cool, dry conditions)

--- Regulatory Technical Dossier: Supporting EU and US market compliance filings

 

Application Summary by Product Type

Product Category

   Recommended Concentration

                         Key Consideration

Face Serums                     

               0.5–2.0%                               

Optimal for daily brightening; combine with niacinamide

Spot Treatments

              2.0–3.0%

Maximum effective concentration for targeted pigmentation

Facial Creams

              0.5–1.5%

Stable at both pH 5 and pH 6 formulation bases

Eye Creams

              0.5–1.0%

Conservative dosing for sensitive eye area

Sheet Masks                      

              2.0–3.0%

Higher concentration acceptable for short contact time

Cleansers (Rinse-off)

              0.2–0.5%

Lower concentration due to short contact time

Body Lotions

              0.5–1.0%

Cost-effective for large surface area applications


HEFEI DIELEGANCE BIOTECHNOLOGY CO.,LTD. is a professional manufacturer and supplier specializing in high-purity cosmetic active ingredients. Our alpha-arbutin production utilizes enzymatic fermentation technology, ensuring consistent quality, batch-to-batch traceability, and compliance with international regulatory standards. We supply to cosmetic manufacturers across Europe, North America, and Asia, with comprehensive documentation support for market entry.

Request a sample and complete documentation package to evaluate our alpha-arbutin for your next formulation. Contact our technical sales team for formulation support, regulatory documentation, or bulk pricing inquiries.

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