Why high-dose biotin can distort blood tests including troponin, what the evidence really shows for biotin, iron, vitamin D and zinc, the two nutrients that cause hair loss in excess, and why testing before supplementing is the only sensible order.
Female hair loss explained by cause - pattern loss, stress shedding, iron, thyroid and traction - why ferritin is the blood result to ask for by name, the UK treatment ladder, the trial where microneedling beat the drug combination, and postpartum, perimenopause and PCOS.
Fine hair and thinning hair need different products - here is the difference, what volumising shampoos, thickening serums, root sprays and keratin fibres each actually do, the buildup trap that flattens fine hair, and the technique that beats every bottle.
Hair loss treatments graded by evidence with real effect sizes - minoxidil, finasteride, microneedling, laser therapy, PRP and transplants - plus UK access and costs, why diagnosis comes first, and what UK clinical guidance says not to bother with.
The real research behind scalp massagers - including the study of nine people everyone quotes - what an 8% thickness gain means in practice, how to use one for four minutes properly, which tool to buy, and who it will not help.
Why a clarifying shampoo cannot remove hard-water minerals, what chelating shampoos do differently, UK water hardness by region, how to tell buildup from damage, frequency by hair type, and the aftercare that stops a reset wrecking your hair.
