Cosmetic Grade L-Threonine(CAS 72-19-5)
Product Name: L-Threonine
Abbreviation: Thr
Chemical Name: (2S,3R)-2-Amino-3-Hydroxybutanoic Acid
CAS No.: 72-19-5
Grade: Cosmetic Grade (Skin Care Special)
Purity: ≥99.0%
Appearance: White Orthorhombic Crystal or Crystalline Powder, Odorless, Slightly Sweet Taste
Molecular Weight: 119.12
Molecular Formula: C₄H₉NO₃
MOQ (Minimum Order Quantity): 1KG
Solubility: Easily soluble in water, slightly soluble in ethanol, insoluble in conventional organic solvents, fast dissolution rate, clear and stable aqueous solution without impurities and precipitation
Specific Rotation: -26.0° ~ -29.0°
pH Value (1% Aqueous Solution): 5.0 - 6.5
Key Characteristics: Essential hydroxyl-containing amino acid, excellent moisturizing and water-locking property, promote skin barrier synthesis, improve skin elasticity, smooth fine lines, mild soothing and anti-oxidation, strong formula stability and compatibility
Storage Condition: Sealed, dry, cool and dark ventilated environment, avoid high temperature, strong light and humid air, prevent moisture absorption and agglomeration, keep dry and clean for long-term storage
Shelf Life: 24 Months
Application: Widely used in deep moisturizing skin care products, barrier repair soothing formulas, anti-wrinkle anti-aging cosmetics, dry fine line improvement products and high-end mild functional skin care series
L-Threonine, Cosmetic Grade L-Threonine, Hydroxyl Amino Acid, Skin Barrier Repair, Deep Moisturizing, Anti-Wrinkle Anti-Aging, Skin Elasticity Improvement, Mild Cosmetic Additive
Cosmetic Grade L-Threonine(CAS 72-19-5)
Cosmetic-grade L-Threonine is a high-purity essential hydroxyl amino acid refined by advanced biological fermentation and purification technology, which is a core nutritional raw material for skin barrier growth and collagen synthesis. With unique hydroxyl active structure, it has stronger water-binding capacity than ordinary amino acids, which can deeply replenish skin basal moisture, form a dense breathable water-locking film on the skin surface, effectively relieve dry tightness, peeling and rough texture caused by water loss, and achieve long-lasting moisturizing effect.
L-Threonine can directly participate in the synthesis of skin keratin and intercellular lipids, repair damaged stratum corneum gaps, reconstruct incomplete skin protective barrier, enhance skin self-defense and water-locking ability, and improve fragile and dry skin state.
Meanwhile, it promotes the regeneration of skin collagen and elastic fibers, improves skin relaxation caused by aging, smoothes dry fine lines and texture lines, and makes skin plump and delicate. It owns mild antioxidant activity, which can scavenge superficial free radicals, reduce mild oxidative dullness, and maintain bright skin tone.
With ultra-mild skin-friendly attributes, low sensitization and zero irritation, it can be freely compounded with moisturizing factors, peptides, panthenol and other functional ingredients to optimize formula stability and skin feel. It is an indispensable high-efficiency raw material for moisturizing repair and anti-wrinkle anti-aging in high-end skin care products.
Key Benefits
• Hydroxyl Deep Hydration, Long-Lasting Moisturizing: Unique hydroxyl structure enhances water-locking capacity, deeply hydrates basal skin, relieves dryness and tightness, and maintains 24-hour moist and smooth skin condition.
• Promote Barrier Synthesis, Repair Fragile Skin: Participate in stratum corneum lipid synthesis, fill skin texture gaps, rebuild skin protective barrier, and improve dry and sensitive skin repeatedly.
• Smooth Fine Lines & Improve Skin Elasticity: Boost collagen and elastic fiber regeneration, improve skin sagging and loose texture, smooth dry fine lines, and restore skin plumpness and firmness.
• Mild Anti-Oxidation & Brighten Dull Skin: Scavenge superficial skin free radicals, reduce mild oxidative dullness and yellowish tone, and maintain clear and translucent skin complexion.
• Ultra-Mild & Low-Sensitivity Safety: Natural essential amino acid, skin-friendly weak acid pH, zero irritation to sensitive skin and fragile skin, suitable for long-term mild maintenance.
• High Formula Stability & Wide Compatibility: Excellent system stability, not easy to deteriorate and inactivate; perfectly compatible with various functional ingredients to synergistically enhance moisturizing and anti-aging efficacy.
Applications
• Deep Moisturizing Skin Care Series: Core moisturizing raw materials for moisturizing toner, lotion, cream and facial mask, suitable for dry skin and seasonal dryness improvement, long-term water-oil balance maintenance.
• Skin Barrier Repair Products: Applied in sensitive skin soothing repair lotion, barrier conditioning cream and post-sun repair formulas to strengthen skin defense and improve fragile skin quality.
• Anti-Wrinkle Anti-Aging Skin Care: Added in anti-aging essence, firming skin care and fine line smoothing products to promote collagen synthesis, improve dry fine lines and skin sagging.
• Mild Daily Maintenance Cosmetics: Suitable for all-skin daily mild care formulas, improve rough skin texture, maintain stable skin state, and enhance skin translucency.
• High-End Compound Functional Skin Care: Widely used in high-end nourishing, repairing and anti-aging compound formulas, improve product mildness and comprehensive skin care efficacy.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | L-Threonine | Compliant |
CAS No. | 72-19-5 | Compliant |
Appearance | White Crystalline Powder, Odorless | Compliant |
Purity | ≥99.0% | 99.72% |
Specific Rotation | -26.0° ~ -29.0° | -27.5° |
Loss on Drying | ≤0.2% | 0.04% |
Residue on Ignition | ≤0.1% | 0.02% |
Heavy Metal (Pb) | ≤10ppm | Qualified |
Arsenic (As) | ≤2ppm | Qualified |
pH Value (1% Solution) | 5.0 - 6.5 | 5.7 |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of cosmetic grade L-Threonine?
A1: The standard MOQ is 1KG, and sample orders are supported for quality testing.
• Q2: What certification documents can be provided?
A2: Complete COA, MSDS and full set of global customs clearance documents are available.
• Q3: What is the recommended dosage in cosmetic formulas?
A3: Conventional addition ratio is 0.2%-2.5%, with stable moisturizing, barrier repair and anti-wrinkle effects, mild and non-irritating to skin.
• Q4: What is the core advantage of L-Threonine?
A4: It is a unique hydroxyl-containing essential amino acid, integrating deep moisturizing, barrier repair and fine line smoothing, with more outstanding water-locking performance than ordinary amino acids.
• Q5: Is L-Threonine suitable for sensitive dry skin formulas?
A5: Yes, it is ultra-mild and low-sensitivity, can effectively improve dryness and sensitivity, repair damaged barrier, and is the preferred raw material for dry and sensitive skin maintenance.
• Q6: Do you support stable large-batch supply all year round?
A6: Sufficient factory capacity ensures continuous and stable bulk supply throughout the year.
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