What is d-alpha-Tocopheryl Succinate?
D‑alpha‑Tocopheryl Succinate is an ester‑modified natural vitamin E derivative widely adopted in modern cosmetic and personal‑care manufacturing. Produced by esterifying d‑alpha‑tocopherol with succinic acid, this fine white powder delivers remarkable thermal stability and pH tolerance compared with free tocopherol, minimizing batch discoloration and active‑ingredient degradation during high‑temperature emulsification and production workflows.
This lipid‑soluble cosmetic raw material demonstrates low skin irritation potential and broad formulation compatibility with oil phases, emulsions, pressed powders and anhydrous cosmetic systems. Our cosmetic‑grade d‑alpha‑Tocopheryl Succinate is HPLC‑verified, compliant with CosIng and FDA cosmetic raw‑material guidelines, and offered for bulk wholesale, pilot‑batch trials and custom packaging for skincare brands, contract manufacturers and formulators worldwide. Beyond radical‑scavenging antioxidant activity, it supports skin barrier maintenance, photodamage defense and visible anti‑aging performance for leave‑on skincare products.
Full Technical Specifications & Test Standards
| Test Item | Specification | Test Method |
|---|---|---|
| d-alpha-Tocopheryl Succinate Content | ≥98.0% | HPLC |
| Specific Rotation [α]D²⁰ | +24.0° ~ +28.0° | Polarimeter |
| Melting Point | 70 ℃ ~ 78 ℃ | Capillary Method |
| Loss on Drying | ≤0.50% | GB/USP Standard |
| Residue on Ignition | ≤0.10% | Gravimetric Method |
| Heavy Metals (as Pb) | ≤10 ppm | AAS |
| Arsenic (As) | ≤2 ppm | AAS |
| Lead (Pb) | ≤2 ppm | AAS |
| Cadmium (Cd) | ≤1 ppm | AAS |
| Mercury (Hg) | ≤0.1 ppm | AAS |
| Total Aerobic Microorganisms | ≤100 CFU/g | Microbiological Test |
| Yeast & Mold | ≤10 CFU/g | Microbiological Test |
| Pathogenic Bacteria | Negative | Microbiological Test |
Application
- Anti‑Photoaging & After‑Sun Repair Formulas Neutralizes skin‑damaging free radicals, inhibits lipid peroxidation and stabilizes cell membranes against UV‑triggered oxidative stress. Fits perfectly into after‑sun balms, antioxidant serums and day‑care protective lotions.
- Mature‑Skin Anti‑Wrinkle & Firming Skincare Slows oxidative breakdown of collagen and elastin matrix, preserves dermal elasticity and helps smooth fine surface lines. Suitable for anti‑aging creams, night repair emulsions and targeted facial treatments for mature skin.
- Skin Brightening & Uneven‑Tone Adjustment Modulates tyrosinase activity to moderate melanin buildup, helping fade post‑inflammatory discoloration. Frequently incorporated in brightening essences and spot‑correcting topical products.
- Skin‑Barrier‑Supporting Moisturizer for Sensitive Skin Boosts stratum corneum water‑locking capacity, alleviates dry, flaky and rough skin texture. Ideal for barrier‑repair moisturizers targeting sensitive and easily irritated skin types.
- Formulation Stabilizer for Multi‑Active Blends Works as a co‑antioxidant partner for retinol, vitamin‑C variants and peptide actives. Reduces premature oxidation of fragile cosmetic actives and extends shelf‑life of finished skincare goods.
- Powder‑type Cosmetic Additive Good flow‑ability for pressed powder, loose powder and anhydrous skincare sticks, bringing built‑in antioxidant protection to powder‑based cosmetic systems.
Why Choose Us
- Consistent High‑Grade Purity: Each production batch undergoes HPLC assay to guarantee ≥98% d‑alpha‑Tocopheryl Succinate content. Strict heavy‑metal and microbial control ensures cosmetic‑grade quality for long‑term OEM skincare production.
- Full Compliance Documentation Package: Each shipment is accompanied by COA, MSDS, heavy‑metal analysis and microbiology reports. Meets EU CosIng, FDA cosmetic‑ingredient standards for cross‑border product registration.
- GMP‑Compliant Quality Control Workflow: Manufacturing operated under GMP‑level workshop conditions. Multi‑stage QC inspection covers raw‑material intake, intermediate monitoring and finished‑goods release to prevent non‑conforming stock delivery.
- Formulation‑Focused Technical Support: Our cosmetic R&D team provides practical dosage guidance, compatibility assessment and formulation suggestions for different emulsion, anhydrous and powder cosmetic systems.
- Flexible Packing & Reliable Bulk Supply: Large‑scale manufacturing capacity supports continuous bulk orders. Customers can select standard or custom‑configured 1 kg foil‑bag / 25 kg fiber‑drum packing; third‑party testing service is available upon client request.
- Global‑oriented Supply Solution: Low‑MOQ sample service for lab formulation testing; flexible shipping options including express, air freight and sea freight for worldwide buyers. Fast production turnaround once deposit is confirmed.
OEM Service
We deliver comprehensive OEM & private‑label supporting service for d‑alpha‑Tocopheryl Succinate cosmetic raw‑material business partners:
- Custom Packaging: Custom‑printed 1 kg aluminum foil bags, 25 kg fiber drums with private‑brand labelling available.
- Batch‑oriented Documentation Customization: Tailor‑made COA, MSDS documents matching your company information for import declaration and cosmetic registration.
- Pilot‑order Support: Small‑volume trial batches for new‑formula R&D before large‑scale mass procurement.
- Formulation Consultancy: Suggestions on mixing proportion, processing temperature and compatible co‑ingredients according to your finished‑product concept.
- Third‑party Test Coordination: Arrange authorized third‑party lab testing upon your requirement for quality verification.
- Drop‑ship & Consolidated Shipment: Consolidate multiple raw‑material items into one shipment to simplify your sourcing workflow.
Packaging, Storage & Global Shipping Solutions
- Standard package: 1kg aluminum foil bag, 25kg fiber drum.
- Storage requirement: Keep sealed in cool, dry, ventilated warehouse without direct sunlight or high temperature; shelf life reaches 24 months under proper storage.
- Lead time: 7 working days after deposit confirmation.
1. Express Delivery (≤100kg): 3-5 days door-to-door service, suitable for lab sample testing orders.
2. Air Freight (100kg-1000kg): 5-7 days airport-to-airport, support customs clearance document assistance.
3. Ocean Freight (≥300kg): Around 30 days port-to-port, cost-effective for large bulk factory orders.
Frequently Asked Questions About Vitamin E Succinate
Q1: What chemical mechanism makes d‑alpha‑Tocopheryl Succinate more stable than free d‑alpha‑tocopherol?
A: The succinic‑acid ester linkage forms a protective molecular shield for the active tocopherol group. This ester structure resists oxidation triggered by heat, light and ambient oxygen during cosmetic manufacturing and shelf storage, greatly lowering the risk of formula yellowing and potency loss.
Q2: Can I add d‑alpha‑Tocopheryl Succinate into cold‑process cosmetic emulsions?
A: Yes. It is recommended to dissolve this powder in your oil phase before emulsification. Ensure proper heating of oil phase to fully dissolve the powder for homogeneous distribution within finished emulsion. Poor dissolution may cause tiny particle precipitation in cold‑processed formulas.
Q3: Is d‑alpha‑Tocopheryl Succinate comedogenic for acne‑prone facial‑care products?
A: Under recommended addition ratio 0.5%‑1.0%, it exhibits low comedogenic potential. Repeated skin‑sensitization animal tests confirm no sensitization reaction. Avoid over‑dosage; high concentration may create heavier skin feel for oily‑acne‑prone skin formulations.
Q4: What key differences separate d‑alpha‑Tocopheryl Succinate from d‑alpha‑Tocopheryl Acetate in cosmetic applications?
A: Succinate variant carries stronger direct radical‑scavenging performance in finished cosmetic matrix, while acetate form mainly acts as precursor form of vitamin‑E. Succinate shows better temperature tolerance during high‑heat production steps, but requires oil‑phase dissolution rather than direct water‑phase addition.
Q5: Does d‑alpha‑Tocopheryl Succinate change finished‑product color after long‑term storage?
A: When used within advised dosage and stored under sealed, cool‑dark conditions, it barely causes color shift. Prolonged exposure to strong sunlight, high temperature or strong oxidizing agents will trigger gradual discoloration of raw material and finished goods.
Q6: Can this raw material be used in sun‑screen cosmetic formulas?
A: Yes. It works synergistically with UV‑filter agents to mitigate UV‑induced oxidative stress on skin. It cannot replace UV‑filter ingredients; it acts as antioxidant auxiliary active rather than sun‑blocking agent itself.
Q7: What risks will appear if I exceed the recommended maximum cosmetic dosage of 1%?
A: Higher addition brings no obvious extra skin‑benefit effect. Excessive loading may lead to sticky skin‑feel, increase formulation stability risk and might trigger mild irritation on compromised skin surfaces.
Q8: How do I judge whether received d‑alpha‑Tocopheryl Succinate raw‑material has lost activity?
A: Qualified goods appear as uniform white fine powder. Obvious yellow‑brown discoloration, strange rancid odor or lump formation indicates oxidation deterioration. Stop using such batches and refer to corresponding batch‑COA for cross‑checking.
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