Premium Hydration Catalyst for Advanced Skincare
L-Serine is a non-essential amino acid that serves as a cornerstone in the skin's structure.In the stratum corneum, L-Serine represents one of the most abundant components of the skin's Natural Moisturizing Factor (NMF), playing a critical role in maintaining cellular hydration, skin elasticity, and epidermal barrier integrity.
Key Applications: Deep moisturizing creams, anti-aging serums, skin-barrier repair lotions, hair conditioning treatments, and hydrating facial cleansers.
Recommended Dosage: 0.5% – 3.0% depending on the specific cosmetic application.
Formulation Stability: Heat stable and highly stable within a broad pH range (4.0 – 7.5), allowing seamless integration into both cold and hot process emulsions.
Specification of L-Serine
| Test item | Specification |
| Appearance | white crystals or crystalline Powder |
| Assay | 98.50~101.0% |
| PH | 5.2~6.2 |
| Specific rotation [α]D20 | +13.6°~+15.6° |
| Chloride(Cl) | ≤0.020% |
| Ammonium(NH4) | ≤0.03% |
| Sulfate(S04) | ≤0.030% |
| IronFe) | ≤10ppm |
| Heavy metals(Pb) | ≤15ppm |
| Arsenic(As203) | ≤1ppm |
| Other amio acids | ≤0.5% |
| Loss on drying | ≤0.30% |
| Residue onignition | ≤0.10% |
Advanced Moisture-Binding & Hygroscopicity Profile
High Hygroscopicity & Water Retention: Thanks to its polar hydroxyl side chain, L-Serine exhibits excellent hygroscopic data, binding moisture effectively even in low-humidity environments. It works synergistically with other amino acids to replicate the osmotic balance of healthy skin.
Keratin Structure Support: As a fundamental building block of filaggrin-derived amino acids, L-Serine promotes keratin synthesis, significantly strengthening the skin barrier function and reducing transepidermal water loss (TEWL).
Why Choose Us
Quality Control
QC team members are all qualified and receive regular training. A professional QA team ensures quality products and a sound documentation system is in place to support audits.
Supply ability
We maintain safety stock for all high-demand products, enabling immediate shipment arrangement upon order confirmation.
Fast Delivery
For products in stock, we can deliver immediately after receiving your payment. For synthetic chemicals, we will provide delivery time when quoting.
Manufacturing Site
Delivery
After confirming your order and payment, we will arrange shipment as soon as possible.
Shipping terms (e.g., by air, sea, or express courier) will be specified in the quotation and adjusted based on your needs.
Samples and small-quantity orders are typically shipped via DHL, FedEx, or UPS.
For further details, please contact us at miley@joybiotech.com.
Nice Package
Packaging sizes range from 1 kg to 25 kg per bottle or bag, with customizable options available based on your specifications and the product's chemical properties.
We prioritize high-quality packaging to ensure optimal product protection and safe delivery in perfect condition.
Company Profile
Shanghai Joy Biotech Ltd. is a professional supplier of Cosmetic ingredients , pharmaceutical raw materials, Dietary supplements, etc. Our team consists of doctors, masters, Bachelors in the field of pharmaceuticals,chemistry, Biology.
We provide professional service in both export & Import chemical products, and CMO/CDMO .
Environment Friendly
Joy Biotech specializes in producing cosmetic active ingredients, pharmaceutical intermediates, and specialty chemicals.
We are committed to environmental sustainability, and prioritize green manufacturing processes to minimize waste and emissions.
Our R&D team focuses on developing more sustainable and eco-friendly production processes through applying more synthetic biology approaches,selecting more eco-friendly synthesis routes, and striving to reduce solvent usage during the process.
Our Certificates
Our certificates are complete and trustworthy
