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Moumoujus

HYDROLYZED SULFONATED KERATIN.

Insufficient Data CAS - / HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING - EMOLLIENT

Hydrolyzed Sulfonated Keratin is a specialized protein derivative, meticulously engineered with sulfonation to significantly boost its water solubility and enhance moisture-binding capabilities. This unique modification positions it as a theoretically potent ingredient for augmenting skin hydration and reinforcing the skin's natural protective barrier function.

Summary

Humectant Occlusive Skin Barrier Support Moisturizing Elasticity Enhancer Firming Agent Skin Regeneration Anti-inflammatory

Science

Mechanism of Action

This specialized keratin form operates by promoting keratinocyte growth and stimulating the skin's natural keratin production. Sulfonation enhances its moisture-binding properties, allowing it to improve the skin's intrinsic ability to retain water by strengthening the lipid barrier and acting as both a humectant and an occlusive agent. Furthermore, it supports fibroblast activity, which can lead to increased collagen synthesis for improved skin firmness and elasticity, while its rich amino acid profile aids in cellular regeneration, reducing inflammation, and contributing to overall skin repair processes.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Studies on 'keratin hydrolysate' (a broader category) demonstrated a 14%-23% increase in stratum corneum hydration when used at 2% concentration, and a 26%-46% decrease in trans-epidermal water loss (TEWL) at 4% concentration, both incorporated into an ointment base.
  2. 02 'Hydrolyzed keratin nano peptides' (a related category) showed up to a 40% improvement in skin hydration levels compared to control groups.

Transparency

Dusting Analysis

Not commonly dusted

Hydrolyzed Sulfonated Keratin was not reported to be in current use in cosmetic products as of 2015-2016, according to FDA VCRP data and Council's concentration of use survey. Consequently, it is not considered a commonly 'dusted' ingredient, and specific dusting thresholds are not applicable.

The Formula

Formulation

Solubility
Water
Optimal pH 5 – 7
0 7 14

Stability

Optimal stability for Hydrolyzed Sulfonated Keratin is typically observed within a neutral to slightly acidic pH range of 5-7. It remains stable under normal storage conditions but should be protected from excessive heat and moisture exposure.

Safety

Safety Profile

CIR Status
Safe with restrictions
Sensitization risk Low

The CIR Expert Panel concluded that Hydrolyzed Sulfonated Keratin is safe for use in cosmetics under the specified practices. However, it was explicitly stated that this ingredient was *not reported to be in current use* in cosmetic products as of 2015-2016, precluding the establishment of a specific maximum concentration for its application. For the broader category of 'Hydrolyzed Keratin,' non-irritation was observed in human studies at concentrations up to 25%.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

While Hydrolyzed Sulfonated Keratin exhibits promising theoretical mechanisms for enhancing skin hydration and barrier function, its reported absence from current cosmetic applications and the reliance on clinical studies of broader keratin categories indicate insufficient specific data for a definitive assessment by Moumoujus.

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