Factory Supply L-Carnosine Powder 99% CAS 305-84-0
L-Carnosine 99% | Core Raw Material for Anti-aging and Antioxidant
L-Carnosine (scientific name: β-alanyl-L-histidine) is a natural dipeptide composed of β-alanine and L-histidine. It is widely found in human skeletal muscle, cardiac muscle, brain, and skin tissue, possessing unique antioxidant and anti-glycation properties. It is widely used in dietary supplements, functional skincare products, and pharmaceuticals.

YTBIO supplies you with high-purity L-carnosine raw materials, with a purity of 99%. It has excellent water solubility and stability, meeting the requirements of high-end applications such as dietary supplements and functional skincare products. It has lower impurity residues and better bioavailability, providing high-quality raw materials and assurance for your product development.
|
Item |
Specifications |
Results |
|
Appearance |
White or off-white powder |
Off-white powder |
|
Assay |
≥99.0% |
99.3% |
|
Melting point |
250~265ºC |
251.0-251.6ºC |
|
Heavy metal |
≤20ppm |
Pass |
|
Residue on ignition |
≤0.1% |
Not detected |
|
Specific optical rotation |
+20.0°~+22.0° |
+21.5° |
|
Loss on drying |
≤1.0% |
1.0% |
|
L-histidine |
≤0.30% |
0.08% |
|
β-alanine |
≤0.30% |
0.02% |
|
Single impurity |
≤0.20% |
0.05% |
|
Total impurities |
≤1.0% |
0.2% |
|
Total aerobes count |
NMT3000cfu/gm |
<10cfu/gm |
|
Mold&yeast |
NMT300cfu/gm |
30cfu/gm |
|
Coliform |
Less than 10cfu/gm |
<10cfu/gm |
|
E.Coli |
Absent/10gm |
Not detected |
|
Staphylococcus aureus |
Absent/10gm |
Not detected |
|
Conclusion |
The results conforms with Enterprise standards |
|
Product Benefits
Delays Skin Aging
Carnosine can slow down the rate of telomere shortening in fibroblasts and activate telomerase activity. In a clinical trial involving women aged 45-65, twice-daily application of a face cream containing 0.2% carnosine resulted in a 20% increase in skin elasticity, a 29% improvement in firmness, and a 12% improvement in skin texture after 8 weeks (Garre A et al.).

Powerful Antioxidant
Carnosine can directly capture reactive oxygen species such as hydroxyl radicals and superoxide anions, while simultaneously regulating the expression of mitochondrial function-related proteins, reducing free radical production at its source and protecting cells from oxidative damage.
Anti-Glycation
Carnosine can protect collagen and elastin from glycation attacks. Studies have shown that topical application of 2% carnosine can reduce AGEs in the skin by 73%, effectively improving skin yellowing and loss of elasticity caused by glycation.
Maintaining Skin Elasticity
Carnosine can inhibit the expression of UV-induced matrix metalloproteinases (MMP-1/3/9), reducing the degradation of collagen and elastin, and maintaining skin structural integrity and firmness.

Enhance Athletic Performance
Carnosine is naturally found in muscle tissue. It can buffer changes in muscle acidity caused by exercise, reduce lactic acid buildup, relieve fatigue, and accelerate post-exercise recovery.
Brighten Skin Tone
Carnosine can inhibit tyrosinase activity, reduce melanin synthesis, and alleviate pigmentation caused by oxidative stress, improving dull skin tone and other problems.
Applications
Dietary Supplements: Can be developed into anti-aging, sports recovery, and brain health supplements.
Functional Skincare Products: Used in anti-aging, anti-glycation, and whitening/spot-fading products.
Pharmaceuticals: Primarily used for disease research.
Food Industry: Also used as a natural antioxidant and for food (meat products) preservation.

Why Choose YTBIO?
Own factory-12+ years of industry experience, ensuring direct supply and quality assurance.
Carnosine purity ≥99% – Low impurity residue, high bioavailability
Complete certifications – cGMP, FSSC22000, BRC, HACCP, HALAL, KOSHER, ISO9001, ISO22000, etc.,supporting your product development
Technical support – Providing COA, free samples, and application guidance.
For free samples or the latest quote, please feel free to contact us.
Email:sales@sxytbio.com
WhatsApp/phone:+86 17782577059
References: Liang Chun, He Tong, Liu Xiaowen, et al. The role of carnosine in skin anti-aging and its research progress [J]. Chinese Journal of Aesthetic Medicine, 2025, 34(8):174-179.











