Overview

• El Cronista spotlights henna as a durable natural option and provides a recipe using 100 g of powder with lemon juice, a tablespoon of vinegar and warm water, rested at least six hours before a 2–3 hour application.
• The henna guide advises shampoo-only prep, full-head coverage under a cap, rinsing without shampoo, and avoiding products for 24 hours, with color visible the same day and lasting weeks depending on hair and wash frequency.
• Diario Uno outlines a two-ingredient paste made from very concentrated coffee cooled and mixed with extra-virgin coconut oil, applied for one to two hours and positioned for brown hair tones.
• A second Diario Uno method boils about 15 walnut leaves with three tablespoons of black tea in one liter of water for 15–20 minutes, then applies the cooled liquid to clean hair for 30 minutes, repeating three times weekly for a month.
• Across the coverage, these botanicals are presented as alternatives for sensitive scalps to avoid chemical dyes, while authors note effectiveness varies by hair color and texture.