Very little, though all steroids are test or converts to it to differing degrees it really depends on how much. Why? Well 5 alpha reductase converts test to DHT, and DHT has receptors in your scalp and testes (mainly). DHT causes hair loss. To the degree in which it does this varies on your genetics as well. I recommend I believe about 20 mg of anavar but using your weight there is a formula out there to find out exactly, just google it. mg of anavar/ kg bw. Also you can always add a 5 alpha reductase inhibitor, better known as propecia or proscar depending on the mg (1 or 5) aka finesteride, and/ or the good ole fashion Saw palmetto at 320mg per day. Beware that cessation of these 5 alpha red inhibitors may have reboud effects I.e excellerated hair loss etc, so use them well after your cycle ends, if not saw palmetto indefinately/ Hope it helps, message me if you have questions
PS. Topical shampoos (nioxin) that claim to reduce hairloss by reducing DHT are useless, the DHT is in your blood.