This acylated protein functions as a secondary surfactant and conditioning agent that minimizes moisture loss during cleansing. By anchoring coconut-derived fatty acids to Hydrolyzed Collagen, it creates a mild detergent capable of supporting the skin barrier while removing impurities.
- INCI Name:
- Sodium Cocoyl Hydrolyzed Collagen
- Chemical/Scientific Name:
- L-Collagen, hydrolyzed, reaction products with cocoyl chloride, sodium salts
- Common Aliases:
- Coco-Collagen, Sodium Cocoyl Collagen Amino Acids, Collagen-Coconut Fatty Acid Condensate
| Category: | Surface-Active Substances |
| Source Origin: | Animal/Vegetable Hybrid (Coconut and Bovine, Porcine, or Marine) |
| Comedogenic Rating: | 0-1 |
| Primary Industries: | Skin Care, Hair Care, Baby Care |
| Solubility: | Water-soluble |
At a Glance: Properties & Effects
| Hydration/Moisture | |
| Soothing/Calming | |
| Texture Enhancement | |
| Irritation Risk |
- Primary Benefits:
- Gentle cleansing that does not disrupt the acid mantle.
- Provides substantive conditioning to hair and skin via film formation.
- Reduces the irritation potential of anionic surfactants like Sodium Lauryl Sulfate.
- Supplies topical Amino Acids to the stratum corneum.
- Potential Risks:
- Potential allergen for individuals with hypersensitivity to specific animal proteins.
- Incompatibility with high-cationic formulas may lead to precipitation.
Biological Action & Cosmetic Profile
Acylation of proteins transforms standard amino acid chains into amphiphilic molecules. These structures possess a dual nature: the Coconut Oil-derived fatty acid component provides lipophilic cleansing power, while the peptide backbone maintains high affinity for keratinized surfaces. Upon application, the molecule organizes into micellar structures that encapsulate oils without aggressively stripping the lipid bilayer.Molecular weights of these condensates are generally high, which limits penetration through the skin barrier. Instead of entering deeper layers, the substance deposits a microscopic, breathable film on the surface. This film acts as a humectant, drawing moisture toward the epidermis while smoothing the cuticle of the hair shaft. Because the backbone is derived from Collagen, it exhibits superior biocompatibility compared to synthetic detergents.Surface activity is moderated by the large size of the protein head group. In cleansing systems, this inhibits the formation of tight, aggressive micelles that often cause protein denaturation in the skin. Formulators prioritize this ingredient when designing “sulfate-free” or “tear-free” products, as it enhances foam stability and creaminess without increasing the irritation index.
Broader Applications & Origins
Primarily found in luxury cleansers and high-performance shampoos, this ingredient bridges the gap between biological actives and functional surfactants. While traditional Collagen is used for its moisture-binding properties, the cocoyl-modified version is uniquely suited for rinse-off applications. Manufacturers typically derive the collagen component from marine or bovine sources, though biotechnology is increasingly providing recombinant plant-based alternatives.
Routine Integration
- Synergies:
- Harsh Surfactants: Effectively buffers the skin against the drying effects of sodium laureth sulfate.
- Humectants: Works well alongside Glycerin to enhance the post-wash feel.
- Conditioning Agents: Complements Panthenol in hair care to improve elasticity and shine.
Clinical Consensus & Safety
Dermatological safety assessments by the Cosmetic Ingredient Review (CIR) Expert Panel categorize acylated hydrolyzed proteins as non-sensitizing and non-irritating at concentrations typically used in cosmetics. Clinical data suggests these condensates can mitigate the “sting” factor of other surfactants, making them ideal for sensitive skin and baby care formulations. The European Chemicals Agency (ECHA) and CosIng database maintain its status as a safe hair and skin conditioning agent with no restricted concentration limits under Annex III.
Is Sodium Cocoyl Hydrolyzed Collagen vegan?
Most versions are not vegan as the protein component is typically derived from fish, cows, or pigs. However, some brands use synthetic or recombinant yeast-derived collagen; checking with the manufacturer is necessary for confirmation.
Will it help with wrinkles?
While it contains Hydrolyzed Collagen, it is a rinse-off ingredient meant for cleansing and temporary film-forming. It does not penetrate deep enough to stimulate new collagen production or permanently reverse deep wrinkles.
Is it safe for color-treated hair?
Yes, it is highly recommended for color-treated hair. Its mild nature prevents the aggressive stripping of hair dye molecules, and its film-forming properties help seal the cuticle to prevent color fade.