Ceramides are primarily composed of ceramide phosphocholine and ceramide phosphoethanolamine. Phospholipids are major components of cell membranes, and ceramides make up 40% to 50% of sebum in the stratum corneum. Ceramides are a major component of the intercellular matrix and play a crucial role in maintaining moisture balance in the stratum corneum. Ceramides have a strong ability to bind water molecules, maintaining skin moisture by forming a network structure within the stratum corneum. Therefore, ceramides play a role in retaining skin moisture.
Ceramides are present in all eukaryotic cells and play a crucial role in regulating various life processes, including cell differentiation, proliferation, apoptosis, and aging. Ceramides also play a crucial role in the formation of the epidermal stratum corneum, contributing to skin barrier maintenance, moisturizing, anti-aging, whitening, and disease treatment.
1. Preventing Skin Aging: Ceramides in rice bran extract can promote skin metabolism and enhance skin cell activity, effectively smoothing wrinkles and delaying aging.
2. Moisturizing Skin: Ceramide extract has a repairing and soothing effect, repairing the stratum corneum, strengthening the skin's own defenses, helping to hydrate the skin, and preventing and treating skin diseases such as pellagra.
3. Regulating Cells: Ceramides are also a cytotoxic regulator, regulating cell apoptosis and participating in other apoptotic processes.
ITEM
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SPECIFICATION
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TESTING METHOD
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Assay Ceramide
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98%
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HPLC
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Physical & Chemical Control
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||
Appearance
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White Powder
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Visual
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Odor
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Characteristic
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Organoleptic
|
Tasted
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Characteristic
|
Organoleptic
|
Sieve Analysis
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100% pass 80 mesh
|
Conform
|
Loss on Drying
|
3% Max.
|
Conform
|
Ash
|
2% Max.
|
Conform
|
As
|
1.0ppm Max
|
Conform
|
Pb
|
2.0ppm Max
|
Conform
|
Hg
|
1.0ppm Max.
|
Conform
|
Cd
|
0.1ppm Max
|
Conform
|
Microbiological
|
||
Total Plate Count
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10000cfu/g Max.
|
Conform
|
Yeast & Mould
|
100cfu/g Max
|
Conform
|
E.Coli
|
Negative
|
Conform
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Staphylococcus
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Negative
|
Conform
|