Science
Mechanism of Action
This ingredient utilizes a dual-action pathway to preserve hair density. Firstly, it inhibits lysyl hydroxylase to prevent the hardening of collagen around the hair follicle (perifollicular fibrosis), ensuring sustained blood flow and nutrient delivery. Secondly, the integrated Zinc Acetate ions regulate sebum production and inhibit 5-alpha reductase, reducing the impact of DHT on the scalp and maintaining a clean, healthy growth environment.
Research
Clinical Evidence
High confidence1.5%
Key findings
- 01 Clinical evaluations confirm that the parent molecule significantly increases hair density while decreasing the percentage of hairs in the telogen (shedding) phase.
- 02 Comparative manufacturer data indicates that the Zinc Acetate complex provides superior root anchorage and oil control compared to standard Kopexil alone.
Transparency
Dusting Analysis
Because this ingredient is effective at low concentrations and is more expensive than standard hair conditioners, it is often 'dusted' into shampoos at negligible levels (below 0.1%) for marketing claims without providing the anti-fibrotic benefits seen at 0.5-1.5%.
The Formula
Formulation
Stability
Highly stable in water-based and hydro-alcoholic serums; however, it is sensitive to alkaline environments which can cause zinc precipitation.
Synergies
- Ethanol
- Propanediol
- Caffeine
- Biotin
Conflicts
- Strong oxidizing agents
- Highly alkaline ingredients (pH > 7.0)
- High concentrations of anionic surfactants
- Strong chelating agents
Safety
Safety Profile
Regulated under EU Annex III; the 1.5% limit is strictly enforced for safety and systemic tolerance in both leave-on and rinse-off applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A scientifically robust choice for targeting hair density and scalp health, provided it is formulated within the 0.5-1.5% therapeutic range.
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