Have you looked recently looked at the ingredients in a shampoo bottle and tried to interpret, let alone pronounce the various chemicals? I wish you didn’t need a science degree to understand so many of the chemicals contain within the cosmetic products we use.
All of my life I accepted my scalp itched and dandruff was a side effect of the itching. Tyring various shampoos high in pyrithione zinc I believed they would work as marketed, and actually resolve the issue. When diagnosed with my systemic nickel allergy, I was first told to eliminate anything and everything I used that contained fragrances from my shampoo, conditioner, deodorant, toothpaste, cleansers, lotions, chapstick and laundry detergent. I began my fragrance free routine using All Free & Clear laundry detergent and Cetaphil soap and lotion. However, finding adequate hair products posed quite a challenge. Given samples of Free & Clear to use, I was at a loss. Though it reduced the need to itch my scalp, my hair felt dry and brittle.