Helen Reavey, trichologist and veteran hairstylist, discusses scalp health, common hair myths, scalp conditions like dandruff and oily scalp, and the importance of nourishing and stimulating the scalp with ACT and Acre. They also talk about the impact of hormones on the scalp and hair, achieving a tousled hair look, and the scalp's microbiome. Additionally, they cover scalp care for healthy hair, including proper cleansing, active ingredient use, and tips for improving hair health and circulation.