Science
Mechanism of Action
This ingredient operates as an enzyme, specifically targeting and degrading collagen by hydrolyzing its native triple helical conformation, which results in the lysis and solubilization of collagen deposits. Beyond its direct enzymatic action, it is understood to generate peptides that signal the body to stimulate the skin's endogenous repair pathways, fostering anti-aging effects like improved cellular regeneration, enhanced structural integrity, and a visible reduction in the appearance of wrinkles.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Clinical studies on Collagenase Clostridium Histolyticum-aaes (a related broader category enzyme) demonstrated significant improvement in moderate-to-severe cellulite appearance when administered via subcutaneous injections at concentrations up to 0.84 mg. It is important to note that these findings are for an injectable drug formulation and are not indicative of topical skincare efficacy. In biological research, concentrations typically range from 0.1 to 5 mg/mL for tissue dissociation, which also pertains to medical/research applications, not topical skincare.
Transparency
Dusting Analysis
As a complex enzyme with a highly specific mechanism of action and specialized formulation requirements, R-CLOSTRIDIUM HISTOLYTICUM COLLAGENASE G is not typically considered an ingredient prone to cosmetic dusting. Its efficacy, when present, is expected to be concentration-dependent, making token inclusion unlikely to yield any functional benefits.
The Formula
Formulation
Stability
Optimal enzymatic activity is maintained within a pH range of 6.0 to 8.8. In neutral aqueous solutions (e.g., pH 7.4) with adequate calcium ion concentrations (0.3-0.5 mM), measurable activity can persist for at least 5 hours at 37 °C. Concentrated crude collagenase solutions (10 mg/mL) are stable for several months when rapidly frozen in aliquots and stored at -20 °C. However, in standard aqueous solutions, significant activity loss can occur within 3 hours at 4 °C, and repeated freeze-thaw cycles are not recommended.
Conflicts
- Ethylene glycol-bis(beta-aminoethyl ether)-N, N, N',N'-tetraacetic acid (EGTA)
- Beta-mercaptoethanol
- Glutathione
- Thioglycolic acid
- 8-hydroxyquinoline
- Chelating agents (in general)
- Reducing agents (in general)
Safety
Safety Profile
Collagenase Clostridium Histolyticum (CCH), a broader enzyme class from which this ingredient is derived, holds FDA approval as an injectable drug for medical conditions such as Dupuytren's contracture, Peyronie's disease, and moderate-to-severe cellulite. Topical formulations of CCH are also used medically for debridement of chronic dermal ulcers and severely burned tissues. However, the FDA has mandated a Risk Evaluation and Mitigation Strategy (REMS) for the injectable drug due to documented risks of severe hypersensitivity reactions, including anaphylaxis. Common adverse effects observed with the injectable form include localized bruising, pain, swelling, and bleeding at the injection site, with potential for skin tears associated with the medical procedure. Crucially, no specific safety assessments by the Cosmetic Ingredient Review (CIR) or Scientific Committee on Consumer Safety (SCCS) for 'R-CLOSTRIDIUM HISTOLYTICUM COLLAGENASE G' as a cosmetic ingredient are available in the provided data, meaning its topical safety profile in cosmetics remains largely unevaluated.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite a promising enzymatic mechanism for collagen degradation and associated anti-aging benefits, there is currently insufficient data from targeted topical cosmetic clinical studies and specific safety assessments by regulatory bodies like CIR or SCCS to confidently rate R-CLOSTRIDIUM HISTOLYTICUM COLLAGENASE G for general skincare use.
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References
Sources