Shaanxi Yuantai Biological Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of silk peptide powder in China. With abundant experience, we warmly welcome you to wholesale bulk silk peptide powder for sale here from our factory. Quality products and reasonable price are available.
What is Silk Peptide Powder?
Silk Peptide Powder is a premium bioactive ingredient obtained by the controlled hydrolysis of natural silk protein, producing low-molecular-weight peptides with excellent water solubility and superior skin affinity. Rich in 18 amino acids, silk peptides provide outstanding moisturizing, nourishing, and skin-conditioning benefits, making them an ideal ingredient for skincare, hair care, and personal care formulations. Their unique molecular structure enables rapid penetration into the skin's outer layer, helping improve hydration, support the skin barrier, and leave skin feeling softer, smoother, and more elastic. Silk Peptide also offers excellent compatibility with a wide range of cosmetic ingredients, including anionic, cationic, nonionic, and amphoteric surfactants, making formulation simple and versatile.
As a professional Silk Peptide manufacturer and bulk supplier, we offer consistent quality, competitive factory pricing, customized specifications, and complete technical documentation. Contact us today to request a free quotation, COA, TDS, MSDS, or samples, and discover the ideal Silk Peptide solution for your cosmetic formulations.
Main indicators
| Item | Silk Peptide Powder | Silk Peptide Liquid |
| Traits | White powder, easily deliquescent | Pale yellow liquid, no peculiar smell |
| Identify | Ninhydrin reaction was positive | Ninhydrin reaction was positive |
| Total nitrogen (%) | ≥14.5 | ≥2.9 |
| Loss on drying (%) | 5.0 | |
| Residue on ignition(%) | 3.0 |
1.0 |
| Solid content (%) |
20 |
|
| PH value | 4.5.0-6.5 |
3.0-7.0 |
| Average molecular weight (Da) | 500-30000 |
500-10000 |
| Lead (mg/kg) | ≤5 |
≤1 |
| Arsenic (mg/kg) |
≤1 |
≤0.5 |
| Mercury (mg/kg) |
≤0.1 |
|
| Total bacteria (CFU/g) |
≤1000 |
≤1000 |
| Coliform (MPN/100g) | ≤90 | ≤90 |
What are the benefits for the skin?
Deep Hydration & Long-Lasting Moisture
Silk Peptide is a natural moisturizing ingredient rich in hydrophilic amino acids that help attract and retain moisture. It functions similarly to the skin's Natural Moisturizing Factor (NMF), leaving skin soft, smooth, and well-hydrated while reducing dryness and dehydration.
Nourishes Skin with Essential Amino Acids
Containing 18 naturally occurring amino acids, including several essential amino acids, Silk Peptide provides nutrients that support healthy skin metabolism. Its low molecular weight allows rapid absorption, helping improve skin softness, elasticity, and overall appearance while reducing the visible signs of aging.
Supports Brighter, More Even-Looking Skin
Silk Peptide helps reduce the activity of tyrosinase, an enzyme involved in melanin formation. This supports a brighter, more even-looking complexion and makes it an excellent ingredient for brightening and skin tone-enhancing cosmetic formulations.
Strengthens the Skin Barrier
Silk Peptide forms a lightweight protective film on the skin that helps minimize moisture loss and shields the skin from environmental stressors. It also supports skin repair and improves skin comfort, making it suitable for sensitive and dry skin formulations.
Excellent Hair Conditioning Performance
Silk Peptide penetrates damaged hair fibers and forms a breathable protective layer on the hair surface. It helps improve moisture retention, enhances softness and shine, reduces dryness and breakage, and leaves hair smoother, healthier, and easier to manage.
Superior Compatibility for Cosmetic Formulations
Thanks to its excellent water solubility and compatibility with a wide range of cosmetic ingredients and surfactants, Silk Peptide can be easily incorporated into creams, lotions, serums, facial masks, shampoos, conditioners, hair masks, and other personal care products.
Product application direction
1. When used as a food nutrition fortifier, silk peptide has the functions of anti-radiation, preventing leukopenia, reducing the body's absorption of fat and cholesterol, promoting wound healing and detoxification;
2. When used as a cosmetic additive, silk peptide can provide necessary nutrients for the normal metabolism of skin and hair, thereby increasing the natural luster and elasticity of skin and hair. It also has significant moisturizing and whitening effects on skin. And it has the characteristics of fast absorption and good film-forming; it can be used in cream, cream, lotion cosmetics and shampoo, hair care, bath products.
3. Silk peptide can also be used in health care toothpaste and soap.
Test
Tests have shown that under the conditions of temperature 27, relative humidity 86% RH, and moisture absorption time of 12 hours, the moisture absorption rate of silk peptide solution with a concentration of 2.5% is equivalent to that of glycerol with a concentration of 48%. That is, adding a small amount of silk peptide solution to cosmetics can obtain good moisturizing and hygroscopicity. Another experiment shows that silk peptide has extremely strong penetrating power. When applied to the skin for about 10 seconds, the small molecule silk peptide can penetrate into the stratum corneum of the skin and play a moisturizing effect. It absorbs nutrients, participates in and promotes cell metabolism, and makes the skin shiny, moisturizing, soft and elastic.
Application Features:
(1) It has natural moisturizing, nourishing skin and promoting skin wound healing.
It has been clinically proven that silk peptide has good curative effect on skin wrinkle, dermatitis, itching and elimination of chloasma. Silk peptides are non-irritating and can speed up wound healing. Silk peptide can also prevent dust, paint, acid and alkali chemicals from eroding and damaging the skin. Therefore, regular application of skin care products rich in silk peptides on the skin can achieve the effect of beauty and prevention of various skin diseases.
⑵Extremely excellent hair care function
The hair care function of silk peptide is mainly reflected in the absorption and adsorption of hair, film-forming, moisturizing and moisturizing.
Compared with other hydrolyzed proteins (collagen, osteocollin, gelatin, etc.), the biggest feature of silk peptide is that it is rich in nutrients and easily absorbed by the hair. The absorption of silk peptides to the skin and hair mainly depends on the osmotic effect. When the concentration of silk peptides increases, the absorption of silk peptides by the hair also increases accordingly. If the hair is damaged, the absorption and adsorption of low-molecular-weight silk peptides are greater, and the repair and protection effects of silk peptides on hair are correspondingly more obvious.
Silk peptide with a molecular weight of 500-2000 has excellent film-forming properties on hair, and the film has a unique luster, and the hair feels good and elastic. X-ray diffraction showed that the film formed by silk peptide is β-type crystal, and the film formed by silk peptide on hair can increase hair elasticity and luster. At the same time, it can also be used as a hair styling agent. Comparing PVP, collagen peptide and starch aqueous solution with silk peptide, under the humid condition of 80% RH, using silk peptide as a styling agent can keep the hair in a good hairstyle for a long time.
When the hair loses a certain amount of moisture, it will dry, split ends, break easily, and fall off. The film formed by silk peptide on the surface of the hair can prevent excessive water evaporation. As a natural humidity-conditioning factor, it can also adjust the humidity of the small space on the surface of the hair, making the hair soft and smooth.
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