Hydrolyzed Silk Peptide Powder

Silk Peptides Powder is a medium molecular weight hydrolyzed silk protein. It sits between small silk amino acids and larger proteins, so it both absorbs partly and leaves a light conditioning film on skin and hair. The result is a soft, smooth, silky feel.

What Are Silk Peptides?

The supplier describes them as premium hydrolyzed silk proteins derived from natural silk. They contain a blend of amino acids similar to those in healthy skin and hair. They help moisture retention, reduce the feel of dryness, support elasticity and give an elegant silky after-feel.

Key Properties

Medium molecular weight balance

Smaller silk amino acids penetrate more, while medium peptides leave a lightweight film that improves slip and softness.

Hair and skin

Valued in premium hair care and skin care where both instant conditioning and lasting softness are wanted.

Easy to dissolve

The fine white powder is water soluble.

Where It Is Used

Hair conditioners, leave-ins, masks and serums; facial serums, moisturizers, creams, toners, cleansers, body lotions, lip care and color cosmetics. The supplier recommends pairing with panthenol such as our D-Panthenol 75%, hyaluronic acid from our hyaluronic acid range and other cosmetic peptides from our peptide powders category.

How to Use

Dissolve in the water phase. Suggested use level: 0.5 to 5%. Keep the finished product within pH 5.0 to 7.0, the stability range given by the supplier.

Compatibility and Technical Notes

The powder is hygroscopic, so weigh quickly and close the bag at once. It works with glycerin, sodium PCA, aloe vera, ceramides, allantoin and panthenol, as listed by the supplier.

Characteristics

INCI: Hydrolyzed Silk. Appearance: fine white hygroscopic powder. Solubility: water soluble. pH stability: 5.0 to 7.0. Use: cosmetic grade, external only. CAS number: not stated by the supplier.

Example: Silk Leave-In Conditioner (100 g)

Dissolve 2 g Silk Peptides Powder in 88 g distilled water. Add 3 g D-Panthenol 75%, 2 g glycerin, 4 g conditioning emulsifier melted at 70°C with 0.5 g of the water and 0.5 g preservative at cool-down. Mix and fill into spray bottles.

Hair Care Tips

In rinse-off conditioners, use the upper part of the range, as some of the peptide is rinsed away. In leave-in sprays and serums the lower part is usually enough for a silky feel without build-up. In skin care, 1 to 2% gives a soft, smooth after-feel in creams and lotions. Combine with panthenol for extra moisture.

Silk Peptides vs Silk Amino Acids

Silk amino acids are smaller and penetrate more readily, while medium molecular weight peptides stay partly on the surface and add a light film. Choose medium peptides when slip, softness and frizz control are the main goals.

Storage

Store tightly sealed in a cool, dry place away from moisture, direct sunlight and excess heat.

FAQ

What is the INCI of silk peptides?

Hydrolyzed Silk.

How much should I use?

The supplier suggests 0.5 to 5%.

Why is it hard to weigh?

It is hygroscopic and pulls moisture from the air, so keep it closed.