My mum is 67 and has noticed significant thinning of her hear, particularly around the forehead. Her hair is now mostly grey and she dyes it blonde every 2 weeks. I suspect the thinning is a combination of post-menopausal hormone changes and the hair dye. I suggested she try to dye it less frequently. I was wondering if anyone has had a similar problem and whether you have any tips to share? I'm eyeing the Kerastase Densifique line, but would like to research a bit more before buying it as the products are a bit pricy (even for Kerastase's usual standards!).