Lifesystems Mountain SPF 50, 50 ml

Lifesystems Mountain SPF 50 is a sunscreen cream formulated specifically for mountain conditions, where UV exposure is higher than at sea level due to thinner atmosphere and reflection off snow and rock. It carries SPF 50+ with 5-star UVA protection - the top rating on the UK's UVA star scale, meaning the ratio of UVA to UVB protection is high, not just the UVB (burn) protection implied by the SPF number alone. It's also water-resistant, which matters for sweat during exertion as much as for rain or stream crossings. A single application is rated to last up to 8 hours, and the formula is paraben-free and dermatologically tested, useful information for anyone with sensitive skin who reacts to certain preservatives. At 50 ml and roughly 70 g including packaging, it's a normal-sized tube rather than a travel-minimised one, so weight-conscious hikers will want to decant some into a smaller container for shorter trips. Suited to alpine trekking, ski touring approaches and any high-altitude use where standard SPF 30 sunscreens are marginal for the actual UV load.