Cosmetic Grade L-Tryptophan(CAS 73-22-3)
Product Name: L-Tryptophan
Abbreviation: L-Trp
Chemical Name: L-2-Amino-3-Indolepropionic Acid
CAS No.: 73-22-3
Grade: Cosmetic Grade (Skin Care Special)
Purity: ≥99.0%
Appearance: White to Slightly Yellow Crystalline Powder, Odorless, Slightly Bitter Taste
Molecular Weight: 204.23
Molecular Formula: C₁₁H₁₂N₂O₂
MOQ (Minimum Order Quantity): 1KG
Solubility: Slightly soluble in water, soluble in dilute acid and dilute alkali solutions, insoluble in ethanol and organic solvents, stable dissolution, clear and impurity-free solution
Specific Rotation: -29.0° ~ -32.0°
pH Value (1% Aqueous Solution): 5.5 - 7.0
Key Characteristics: Essential aromatic amino acid, natural skin soothing factor, sleep skin repair, anti-oxidation and anti-aging, improve dark and yellow skin, stable skin state, mild and non-irritating, excellent formula compatibility
Storage Condition: Sealed, dry, cool and dark ventilated environment, avoid high temperature, strong light and humid environment, prevent moisture deterioration, oxidation discoloration and efficacy loss
Shelf Life: 24 Months
Application: Widely used in night repair skin care products, soothing and anti-sensitive essence, anti-aging lotion and cream, sleep beauty mask, dullness brightening and stable skin functional cosmetics
L-Tryptophan, Cosmetic Grade L-Tryptophan, Skin Soothing Amino Acid, Anti-Aging Raw Material, Sleep Skin Repair Agent, Dullness Brightening Additive, Mild Cosmetic Ingredient
Cosmetic Grade L-Tryptophan(CAS 73-22-3)
Cosmetic-grade L-Tryptophan is a high-purity essential aromatic amino acid refined by advanced biological fermentation technology, which is a core functional raw material for skin night repair and soothing maintenance.
It has a unique indole ring structure, with excellent skin affinity and biocompatibility, which can efficiently penetrate the skin basal layer, supplement skin essential nutrients, and activate skin self-repair energy during sleep.
L-Tryptophan has excellent antioxidant activity, which can effectively scavenge skin free radicals, reduce oxidative damage caused by ultraviolet rays and environmental stress, delay skin aging, and improve fine lines and rough texture. It can soothe skin nerve tension, relieve redness, dryness and sensitive discomfort caused by external stimulation, stabilize fragile skin barrier, and greatly improve skin tolerance.
Targeting sleep-deprived dull skin, it can accelerate the metabolism of aged keratin and waste pigments, improve dark yellow, dull and tired skin tone, brighten skin translucency, and realize night skin rejuvenation and repair. With ultra-mild properties, stable formula activity, no irritation and no burden, it can be perfectly compounded with anti-aging, soothing and moisturizing ingredients, and is a high-quality exclusive raw material for high-end sleep beauty and night repair skin care products.
Key Benefits
• Night Repair & Sleep Skin Rejuvenation: Activate skin night self-repair mechanism, supplement sleep nutrition, improve tired and sagging skin caused by staying up late, and restore skin delicate and vibrant state.
• Antioxidation & Anti-Aging Fine Line Fading: Efficiently scavenge free radicals, resist skin oxidative aging, reduce dry lines and fine lines, and refine rough skin texture.
• Soothing & Stabilizing Sensitive Skin: Relieve skin nerve irritation, soothe redness, dryness and itching discomfort, repair fragile barrier, and enhance skin self-resistance.
• Brighten Dullness & Improve Yellowish Skin: Accelerate skin waste metabolism, fade sleep-induced dullness and dark yellow tone, improve skin translucency, and make skin bright and clean.
• Mild & Safe with Low Sensitivity: Natural fermented amino acid ingredients, skin-friendly pH value, zero irritation and zero burden, suitable for long-term maintenance of sensitive and fragile skin.
• Stable Formula & Strong Compatibility: Not easy to oxidize and deteriorate in formulas, high compatibility with peptides, hyaluronic acid and soothing ingredients, significant synergistic skin care effect.
Applications
• Night Repair Skin Care Series: Core raw materials for night repair essence, late-night skin care lotion and sleep facial mask, focus on improving staying-up dull skin and repairing daily skin damage.
• Soothing & Sensitive Skin Stabilizing Products: Applied in anti-redness essence, sensitive skin soothing lotion and barrier repair cream to relieve skin sensitivity and stabilize skin health.
• Anti-Aging & Fine Line Fading Formulas: Added in anti-aging cream, firming essence and light wrinkle repairing products to resist oxidative aging and improve skin fine lines and sagging.
• Dullness Brightening & Skin Tone Uniforming Products: Suitable for brightening toner and yellowish skin improvement products, accelerate metabolism and restore skin translucent luster.
• Mild High-End Functional Cosmetics: Used in high-end mild skin care, night beauty maintenance and amino acid compound formulas to improve product safety and comprehensive efficacy.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result |
Product Name | L-Tryptophan | Compliant |
CAS No. | 73-22-3 | Compliant |
Appearance | White to Slightly Yellow Crystalline Powder, Odorless | Compliant |
Purity | ≥99.0% | 99.71% |
Specific Rotation | -29.0° ~ -32.0° | -30.8° |
Loss on Drying | ≤0.2% | 0.06% |
Residue on Ignition | ≤0.1% | 0.03% |
Heavy Metal (Pb) | ≤10ppm | Qualified |
Arsenic (As) | ≤2ppm | Qualified |
pH Value (1% Solution) | 5.5 - 7.0 | 6.2 |
Conclusion | Conforms to cosmetic grade quality standard | Qualified |
Frequently Asked Questions (FAQ)
• Q1: What is the MOQ of cosmetic grade L-Tryptophan? 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 0.1%-1.5%, with stable night repair, soothing and brightening effects, mild and skin-friendly without burden.
• Q4: What is the core skin care advantage of L-Tryptophan? A4: It focuses on sleep skin repair, improves staying-up dull and tired skin, integrates anti-oxidation, soothing and anti-aging effects, and is the exclusive raw material for night skin care products.
• Q5: Can it be compounded with other amino acids? A5: Yes, it can be perfectly compounded with L-Phenylalanine, branched-chain amino acids and other raw materials to jointly brighten skin tone and repair skin barrier.
• 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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