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HEMOCYANIN.

Avoid CAS 9013-72-3 / ANTI-SEBUM, ANTIMICROBIAL

Hemocyanin is an invertebrate metalloprotein responsible for oxygen transport and exhibiting phenol oxidase activity. While patent applications propose its use for significant skin barrier regeneration and repair, its direct topical application faces considerable safety challenges due to its highly immunogenic nature.

Skin barrier support Texture refining Tone evening Blemish reduction Wound healing support

Science

This metalloprotein incorporates two copper atoms, enabling reversible oxygen binding. Its inherent phenol oxidase activity is crucial for processes such as arthropod cuticle sclerotization, wound healing, and humoral immune defense. In a dermatological context, it is theorized to exert multi-faceted actions, collectively supporting the regeneration, repair, and restoration of the skin barrier function.


Research

Low confidence
Effective range 0.05–20%
Optimal

N/A


Transparency

Not commonly dusted

Due to its pronounced immunogenic properties in mammalian systems, hemocyanin is not a suitable ingredient for 'dusting' in formulations. Its inclusion at any significant percentage without specialized processing to mitigate immunogenicity would pose an unacceptably high risk of adverse reactions.


The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Hemocyanin's oxygen affinity, and thus its potential efficacy, is sensitive to environmental factors including pH, temperature, and ionic concentration. As a protein, it requires careful formulation to avoid extreme pH values or high temperatures that could compromise its stability and activity. General cosmetic formulations often target a pH range of 4.5-6.5 for product stability and skin compatibility.


Safety

CIR Status
Not reviewed
Sensitization risk High

Hemocyanin is a potent immunogen, meaning it can provoke a strong immune response. Its 'completely xenogeneic nature' in mammalian systems can lead to the formation of powerful antiserum and, at the site of topical application, may cause local erythema (redness) and infiltration by macrophages. This indicates a high potential for adverse immunological reactions and irritation in humans, rendering it unsuitable for cosmetic use unless specifically processed or modified to eliminate its immunogenic properties.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Avoid

While proposed in patent claims for beneficial effects on skin barrier function and overall appearance, hemocyanin's potent immunogenicity and absence of established safety reviews for human topical application present a prohibitive risk of adverse immune reactions, making it unsuitable for cosmetic formulations without extensive and specialized modification.


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