Overview

• Media in Argentina and Spain have published September calendars that match haircut goals to lunar phases, reflecting growing consumer demand for this planning.
• Phase guidance highlights waxing moon from September 4–10 for growth (with El Litoral singling out the 6th–7th), full moon on the 10th for volume, waning on the 18th to slow regrowth, and caution around the new moon on the 25th.
• Coverage notes two eclipses next month—a total lunar eclipse on September 7 and a partial solar eclipse on September 21—with experts advising no cuts or treatments within 12 hours before and after.
• Industry figures reported in Spain indicate about 22% of salons consider the lunar calendar, with adoption growing roughly 5% annually since 2023, and an estimated 68% of those salons observe eclipse blackout periods.
• Expert commentary, including from stylist Conchi Arias, links waxing phases to faster regrowth and waning phases to slower growth, while articles underscore that scientific consensus on these effects is lacking.