Climate and relocation
Humidity, hard water, pollution and heat: how a new city changes your skin and hair, and how to adapt your routine.
- Gisou Honey Infused Leave-In Conditioner: humectants, hair type, heat and humidity
An ingredient-led guide to Gisou's Honey Infused Leave-In Conditioner: what its published ingredients do, how honey and other humectants behave in high and low humidity, which hair types it suits, heat styling, fragrance allergens on the label, and storage in a hot climate.
- Hard water and skin: what the research shows, and what renters can do
What hard water is, what studies show about hard water, soap residue, eczema and the skin barrier (Danby 2018, Perkin 2016, a 2021 meta-analysis, the SOFTER pilot trial), effects on hair, how to find out how hard your water is after a move, and practical options for renters without installing a softener.
- Moving to a new climate: adapting your skincare routine after relocating
How relocating to a new climate affects skin and hair, and how to adapt your skincare routine: humidity and the skin barrier, UV by latitude and altitude, hard water, urban pollution and indoor air, with a table by climate type and a step-by-step plan for the first three months.
- Pollution and skin: what city air does, and a routine that makes sense
A sourced look at air pollution and skin: what fine particles, traffic soot and ozone are associated with (pigment spots, signs of aging, flares of eczema and acne), how pollution and UV interact, what 'anti-pollution' claims mean, and a practical city routine of cleansing, barrier care, antioxidants and sunscreen.
- Storing skincare in heat and humidity: what spoils, what to refrigerate, and the signs a product has turned
How heat, light, air and humidity affect skincare and cosmetics, especially in tropical climates: sunscreens, vitamin C, retinoids, hypochlorous acid, natural oils and water-based products; expiry dates and period-after-opening symbols; when a fridge helps; and the signs that a product has degraded or become contaminated.
