
​In Vitro Safety Testing for Cosmetics, Consumer Products and Industrial Chemicals
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CBT supports cosmetics and consumer product companies (and chemical industry) with human-relevant, non-animal safety testing aligned with current regulatory expectations, including MOCRA.
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Our platforms use 3D reconstructed human tissues that closely mimic in vivo physiology, enabling reliable and predictive safety assessment without animal testing.
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Our Capabilities
3D Human Skin Models
Using 3D reconstructed human epidermis (RhE):
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Skin irritation and corrosion
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Barrier function and toxicity
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Repeat exposure studies
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Scientific basis:
Multi-layered keratinocyte cultures replicate the stratum corneum barrier, enabling accurate prediction of irritation and corrosion responses.
OECD Guidelines:
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Skin Irritation: OECD TG 439
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Skin Corrosion: OECD TG 431
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Using 3D reconstructed human corneal epithelium (RhCE):
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Eye irritation assessment using validated in vitro systems
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Alternatives to animal testing
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Scientific basis:
Stratified corneal epithelial cells reproduce ocular surface responses, allowing prediction of irritation potential through viability and barrier disruption endpoints.
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OECD Guideline:
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Eye Irritation: OECD TG 492
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Inhalation Toxicity (In Vitro)
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Using 3D reconstructed human airway / respiratory tissues:
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Aerosols, sprays, and volatile compounds
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Respiratory exposure assessment
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Scientific basis:
Air–liquid interface cultures of bronchial epithelial cells mimic respiratory tract architecture and exposure conditions, enabling realistic aerosol and vapor testing.
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Scientific Validation
Our in vitro models are supported by data presented at the Society of Toxicology (SOT), demonstrating their predictive performance and applicability to real-world safety assessment.
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Key highlights:
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Skin & ocular models:
Validated using OECD TG 439 and TG 492 with demonstrated reliability in irritation classification
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Inhalation models:
Novel approach developed to correlate in vitro airway exposure with real-world occupational inhalation scenarios
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Robust assay performance:
Validated methods addressing common challenges such as test article interference and assay sensitivity
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​See Scientific Posters:​
📄Inhalation Toxicity Poster (SOT-2026)
📄Skin & Eye Irritation Poster (SOT-2025)
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OECD Status:
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Studies conducted using advanced, scientifically validated in vitro approaches
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Applications
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Cosmetic ingredient and industrial chemicals safety evaluation
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Finished product safety testing
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Regulatory support (MOCRA-aligned safety substantiation)
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Product development and formulation screening
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Why Work With CBT
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Human-relevant testing using 3D reconstructed human tissues
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OECD-aligned methods where applicable
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Fast turnaround and flexible study design
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Experience supporting regulatory submissions
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Integrated analytical and toxicology capabilities
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