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KPV Mechanism evidence comes from cell and animal studies
Keep in mind that scientific support for most combinations is still in its infancy
it is co-mixing in solution for injection that creates risk
Face serums and creams: Clinical standard: 1-3% concentration Maximum typically used: 4% concentration Application: Once or twice daily Duration: Minimum 8-12 weeks for visible results Eye area products: Concentration: 1-2% (lower for sensitive periorbital skin) Application: Once daily, typically evening Amount: Pea-sized for both eyes Scalp solutions for hair: Concentration: 0.5% solution common Application: 1-2ml to affected areas once or twice daily Duration: 3-6 months minimum for meaningful changes Higher concentrations do not always mean better results with topicals
Noctor G, Foyer CH (junio de 1998)
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