Winter Hair Loss Solution: How Vitamin B1 Supports Volume and StrengthDuring winter, many people notice increased hair shedding and a visible loss of volume. Yet there is a simple way to support hair health without costly treatments or complicated routines. Photo: Анна Маляева is licensed under Рubliс domain Hair lossWhy Hair Reacts More Sharply in WinterThe cold season places extra strain on the scalp and hair follicles. Thiamine as Part of Rotational Hair Care RoutineOne accessible way to refresh hair care involves vitamin B1, also known as thiamine. How to Use Vitamin B1 at HomeVitamin B1 is valued for both its effect and its accessibility.