Natural Astaxanthin - Cosmetic Grade (Haematococcus Pluvialis)
Product Name: Astaxanthin (Natural from Haematococcus Pluvialis)
INCI Name: Astaxanthin / Haematococcus Pluvialis Extract
CAS Number: 472-61-7
EINECS Number: 207-451-4
Appearance: Dark red / crimson fine powder
Odor: Mild characteristic algae odor
Heavy Metals: ≤10 ppm
Loss on Drying: ≤5.0%
Minimum Order Quantity (MOQ): 100 g (Sample), 1 kg (Bulk)
Optimal Formulation pH: 5.0 - 7.0
Primary Applications: Super antioxidant serums, anti-aging, photoprotection, anti-inflammatory, brightening
Shelf Life: 24 months under proper storage
Astaxanthin, CAS 472-61-7, Haematococcus Pluvialis, natural astaxanthin, super antioxidant, 6000x Vitamin C, strongest antioxidant
Natural Astaxanthin - Cosmetic Grade (Haematococcus Pluvialis)(CAS 472-61-7)
Astaxanthin is a red ketocarotenoid produced by the microalgae Haematococcus pluvialis under environmental stress - universally recognized as the world's strongest natural antioxidant. Its legendary potency comes from its unique molecular structure: 13 conjugated double bonds creating an extended electron system, with polar terminal groups on both ends allowing it to span the entire cell membrane - neutralizing free radicals both inside AND outside the lipid bilayer.
Scientifically proven to be 6,000x stronger than Vitamin C, 550-1,000x stronger than Vitamin E, and 800x stronger than Coenzyme Q10 in singlet oxygen quenching, it is the only antioxidant that can simultaneously protect all three cellular compartments: the aqueous cytoplasm, the lipid membrane, and the extracellular environment.
Unlike most antioxidants that become pro-oxidant after neutralizing a free radical, Astaxanthin can neutralize up to 19 free radicals simultaneously without degradation - making it the ultimate "super antioxidant" for premium anti-aging formulations.

Key Benefits
✅ World's strongest natural antioxidant - 6000x Vitamin C potency
✅ Spans entire cell membrane - protects inside AND outside
✅ Neutralizes up to 19 free radicals simultaneously
✅ No pro-oxidant activity - never becomes harmful
✅ Superior photoprotection - absorbs blue light and UV
✅ Improves skin elasticity and reduces fine lines
✅ Brightens - inhibits melanin synthesis, reduces pigmentation
Applications
Premium Anti-Aging (Primary):
• Super antioxidant serums: 0.05-0.2%
• Daytime environmental defense: 0.05-0.1%
• Collagen protection creams: 0.1-0.3%
• Blue light protection products: 0.05-0.2%
Photoprotection & Repair:
• Sunscreen boosters: 0.05-0.1% - enhances SPF efficacy
• Post-sun and post-IR repair: 0.1-0.3%
• Anti-pollution formulations: 0.05-0.2%
Brightening & Anti-Inflammatory:
• Redness relief and calming: 0.05-0.15%
• Dark spot correctors: 0.1-0.2%
• Anti-glycation formulations: 0.1-0.3%
Certificate Of Analysis (COA)
Test Item | Specification | Result |
Product Information | ||
Product Name | Astaxanthin 2% Powder | Haematococcus Pluvialis Extract |
CAS Number | 472-61-7 | 472-61-7 |
Grade | 2% Natural Cosmetic Grade | 2% Grade |
Source | Haematococcus Pluvialis Microalgae | Natural Algae |
Physical & Chemical | ||
Appearance | Dark red fine powder | Crimson fine powder |
Odor | Mild characteristic | Conforms |
Astaxanthin Content (HPLC) | ≥2.0% | 2.18% |
All-trans Isomer | ≥98% | 98.7% |
3S,3'S Stereoisomer | ≥98% | 99.1% |
Particle Size | 95% through 80 mesh | Passes |
Loss on Drying | ≤5.0% | 2.3% |
Purity & Safety | ||
Heavy Metals (as Pb) | ≤10 ppm | <5 ppm |
Arsenic (As) | ≤2 ppm | <0.5 ppm |
Mercury (Hg) | ≤0.1 ppm | <0.05 ppm |
Lead (Pb) | ≤2 ppm | <0.5 ppm |
Microcystins | Not detected | Not detected |
Microbiological | ||
Total Aerobic Count | ≤1000 CFU/g | <100 CFU/g |
Yeast & Mold | ≤100 CFU/g | <10 CFU/g |
E. coli, Salmonella | Negative | Negative |
Conclusion | —— | PASSED |
Frequently Asked Questions (FAQ) & Document Request Frequently Asked Questions (FAQ) & Document Request
Q1: How does Astaxanthin compare to other antioxidants?
A: Astaxanthin is the undisputed KING of antioxidants:
• 6,000x stronger than Vitamin C (singlet oxygen quenching)
• 550-1,000x stronger than Vitamin E (lipid peroxidation protection)
• 800x stronger than Coenzyme Q10
• 75x stronger than Alpha Lipoic Acid
• 15x stronger than Beta-Carotene
• NO pro-oxidant activity (unlike Vitamin C, Vitamin E, Resveratrol which can become pro-oxidant at high doses)
Most importantly: Astaxanthin is the ONLY antioxidant that spans the entire cell membrane, protecting both aqueous and lipid phases.
Q2: What is the optimal concentration for maximum efficacy?
A: 0.1% is the scientifically proven sweet spot:
• 0.01%: Minimum effective - measurable antioxidant benefit
• 0.05%: Standard anti-aging - significant free radical protection
• 0.1%: ✅ PERFECT - saturation point, maximum efficacy
• >0.2%: No additional antioxidant benefit, only increased color
Astaxanthin is EXTREMELY potent - you don't need high concentrations. 0.1% delivers the full antioxidant punch without excessive red coloration.
Q3: How do I stabilize Astaxanthin in formulations?
A: Astaxanthin is sensitive to light, heat, and oxygen:
1. Always add LAST to cooled oil phase (<40°C)
2. Stabilizer package: 0.5% Vitamin E + 0.1% BHT + Rosemary Extract
3. Package: Opaque amber containers, airless pumps, nitrogen flush
4. AVOID: Direct sunlight, temperatures >50°C, prolonged air exposure
5. For water-based: Use pre-nanoemulsified Astaxanthin
Properly stabilized Astaxanthin retains >90% activity for 24 months.
Q4: Does Astaxanthin stain skin orange/red?
A: NOT at cosmetic use concentrations:
• <0.1%: No visible coloration on skin - completely absorbs
• 0.1-0.2%: Very faint pink tint that disappears within minutes
• >0.5%: May leave temporary orange tint
The red color is actually beneficial - it provides visible blue light and UV protection. The myth that Astaxanthin stains skin comes from using synthetic, impure grades at excessive concentrations.
Q5: Can Astaxanthin be combined with other active ingredients?
A: Excellent synergistic combinations:
• ✅ + Vitamin C: Complementary antioxidant network (water + lipid phase)
• ✅ + Vitamin E: Perfect synergy, mutual stabilization
• ✅ + Niacinamide: Anti-inflammatory + barrier enhancement
• ✅ + Peptides: Anti-aging power couple
• ✅ + Ferulic Acid: Photoprotection amplification
• ❌ No known incompatibilities
Astaxanthin is one of the most compatible active ingredients - it works with everything.
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