Cusco
Peru · Latin America
The water
293 mg/LVery hard
Source: Cusco water quality study (1library) · Published figure. Hardness counts dissolved calcium and magnesium in the water; it is the number your hair meets in the shower.
What very hard water does to hair
Expect rapid build-up: hair turns rough and dull, tangles at the ends and fades in colour as the coating thickens. Frequent chelating (detox) washes and deep conditioning are the standing routine here, particularly for bleached or porous hair.
The washing routine for Cusco
Treat detox as the default: a chelating (detox) wash every second wash, a gentle formula on the days between, and never skip conditioner. Add a weekly deep treatment on longer stays to protect porous or bleached hair from the rapid build-up.
Climate, from recent records (Open-Meteo, ERA5 2015-2024): July is the warmest month, averaging 18°C by day, and humidity peaks in February at about 79% on average. Day to night swings reach 14°C, which dries hair out between washes; the plan adds moisture and a sealing leave-in when a stop spans those months. In the humid months, frizz is the main event; anti-humidity styling matters more than wash frequency.
Altitude: at about 3,347 m, UV runs roughly 10 to 12% stronger per 1,000 m and the air is dry, so UV protection and moisture join the routine; the planner builds both in.
Plugs and power for your tools
Sockets: Type A, B and C. Supply: 220 V, 60 Hz.
A 120 V only dryer or styler (North American) will burn out on this supply, and a plug adapter does not change voltage. Check the label for dual voltage (100-240 V) before you plug in.
Plug, voltage and frequency: IEC World Plugs and national standards.
Plan Cusco properly
The trip planner turns this water profile into a wash plan for your hair type, a chosen kit and a packing list, month by month.