CLIMBAZOLE

📚 Research & Evidence

🔬 The Science

Climbazole (CBZ) is an antifungal compound used in skincare and hair care products, primarily for dandruff management. Dandruff, medically called pityriasis capitis simplex, is characterized by excessive flaking, scaling, itching, and impaired skin barrier function, affecting up to half the global population at some point (Int J Pharm, 2018). #1: How climbazole reaches skin: Research using laboratory diffusion cells—which simulate how ingredients penetrate skin—shows that climbazole is designed to work on the outer layers of skin. When applied topically, very low amounts penetrate through the skin barrier (less than 1% of the applied dose crosses through), but significantly more is extracted and retained in the outer epidermis (the skin’s outermost layer) (Int J Pharm, 2018).

The ingredient can be formulated with various solvents (propylene glycol, octyl salicylate, and others) that help deliver it to skin, though the specific solvent choice doesn’t dramatically change how much reaches the target area (Int J Pharm, 2024). #2: Potential anti-aging synergy with retinoids: In laboratory models using human skin cells and in a small 16-person clinical study, climbazole combined with low-dose retinol (a form of vitamin A) produced greater skin aging-related benefits than retinol alone after 3 weeks of use. Specifically, the combination showed significant increases in retinoid biomarkers—measurable signs of retinoid activity—while low-dose retinol by itself did not (Int J Cosmet Sci, 2017).

However, this effect was observed only at lower retinol doses; higher retinol doses alone already produced expected benefits. #3: Systemic absorption from topical use: When climbazole-containing products are applied to skin, some amount is absorbed into the body and metabolized (chemically broken down). In human volunteers using a rinse-off anti-dandruff shampoo, back-calculated absorption was approximately 6.6 micrograms per kilogram of body weight per day, while a leave-on hair tonic showed higher absorption at 18.5 micrograms per kilogram of body weight per day (Toxicol Lett, 2024). For context, this means formulation type and contact time matter for how much ingredient your body absorbs.

#4: Regulatory status: The EU classifies climbazole as an acute toxicant (Category 4) and has confirmed endocrine disruptor concerns—meaning it may interfere with hormone systems at certain exposure levels (Regul Toxicol Pharmacol, 2025). Recent occupational safety research found significant dermal absorption occurs, with 67% of absorbed climbazole being metabolized in the body (Regul Toxicol Pharmacol, 2025). Limitation: The sources provide solid data on climbazole’s skin delivery and some evidence for anti-aging effects in combination with retinoids, but clinical evidence remains limited to one small study. More human research would be needed to confirm practical benefits for consumers.

📄 Related Research

Matched by search — not necessarily verified support for every statement above.

• Paz-Alvarez M et al. (2024). Rational development of topical climbazole formulations. Int J Pharm.
• Paz-Alvarez M et al. (2018). Topical delivery of climbazole to mammalian skin. Int J Pharm.
• Adamus J et al. (2017). Climbazole boosts activity of retinoids in skin. Int J Cosmet Sci.
• Schönrath I et al. (2024). Human urinary excretion kinetics of the antimycotic climbazole: Biomonitoring of two new metabolites after oral and dermal dosage. Toxicol Lett.
• Champmartin C et al. (2025). Percutaneous absorption of climbazole: In vitro data from human skin. Regul Toxicol Pharmacol.

🧴 Products Containing CLIMBAZOLE

• Nivea, Nivea Men Power Shampoo Anti-pelliculaire
• clear nen
• Dove dove
• Palmolive Naturals Antipelliculaire
• Cosmia Shampoing antipelliculaire réparateur
• Cosmia Shampoing et après-shampoing antipelliculaire 2 en 1
• Cosmia Shampoing antipelliculaire citrus
• Cosmia, auchan Shampoing antipelliculaire
• Mustela Mustela Shampooing Mousse Nourrisson
• Bioderma Nodé P Shampooing
• Wash & Go Wash & Go
• Eucerin Dermo Capillaire
• Pantene Champoings
• Neutral, Unilever Anti-Dandruff Shampoo
• clear shampoo
• Unilever, Brylcreem Anti Dandruff
• Follow Me Dandruff control shampoo
• Dove shampoo
• Septex Deep Clean Antiseptic Bar
• z