Introduction:
Hydrolyzed Silk Protein Liquid, also known as Silk Amino Acids, is a luxurious, water-soluble protein derived from pure silk fibers. It penetrates deeply into hair and skin, delivering hydration, strength, smoothness, and a soft, silky feel. This protein is widely used in premium hair care, skin care, and cosmetic products, especially for its conditioning, moisture-retaining, and rejuvenating properties.
What is Hydrolyzed Silk Protein?
Hydrolyzed Silk Protein is made by breaking down silk fibers into smaller amino acids through hydrolysis, creating a light yellow to pale amber liquid that is easily absorbed by hair and skin. It is rich in serine, alanine, and glycine—amino acids that mimic the natural moisturizing factors (NMF) of the skin.
Applications of Hydrolyzed Silk Protein Liquid:
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Hair Care Products:
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Used in shampoos, conditioners, serums, and hair masks.
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Adds shine, strength, detangling, and frizz control.
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Skin Care Products:
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Found in creams, lotions, face mists, and anti-aging serums.
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Improves skin elasticity and smoothness while reducing dryness.
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Body & Hand Lotions:
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Adds a soft, silky after-feel and helps retain moisture.
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Shaving & After-Shave Products:
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Helps soothe the skin and maintain hydration after shaving.
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Color Cosmetics:
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Sometimes used in BB creams, foundations, and compact powders to add a smooth finish and conditioning effect.
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Key Features & Benefits:
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🧴 Deep Conditioner: Penetrates hair shafts and skin for intense hydration.
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✨ Adds Shine & Smoothness: Leaves hair soft and glossy; skin supple.
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💧 Moisture Retention: Forms a protective barrier against dehydration.
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🌿 Natural & Non-Irritating: Suitable for all skin and hair types.
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🔬 Small Molecular Size: Easy absorption for better performance.
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🧪 Compatible: Easily blends with other actives and emulsions.
Technical Specifications:
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INCI Name: Hydrolyzed Silk
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Appearance: Pale yellow to amber liquid
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Solubility: Completely water-soluble
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pH Range: 4.5 – 6.5
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Recommended Usage: 0.5% to 5%
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Shelf Life: 24 months (cool, dry storage)
✅ Usage Instructions:
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Shampoo/Conditioner: 1% to 3% for silky softness and shine
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Serums & Leave-in Sprays: 0.5% to 2%
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Creams & Lotions: 0.5% to 2% for skin conditioning
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Add during the cool-down phase of formulation (below 40°C) to preserve protein structure.
✅ FAQs (Frequently Asked Questions):
Q1. Is this the same as Silk Amino Acids?
Yes, Hydrolyzed Silk Protein is often referred to as Silk Amino Acids, especially in liquid form.
Q2. Can I use it in natural or herbal formulations?
Yes. It pairs well with aloe vera, glycerin, plant oils, and other natural ingredients.
Q3. Is it suitable for curly hair?
Absolutely. It enhances moisture retention, reduces frizz, and promotes curl definition.
Q4. Is this ingredient vegan?
No. Since it is derived from silk (a byproduct of silkworms), it is not vegan.
Q5. Does it have any scent or color?
It may have a mild protein odor and a light yellow tint, which does not affect final product color or smell when used in small quantities.
✅ Disclaimer:
This product is intended for cosmetic and external use only. Not for ingestion. Always perform patch testing when creating new formulations. Store in a cool, dry environment away from sunlight and moisture.





