I have intermittent mild dermatitis on my scalp which is triggered by both box dyes and Colour B4 (like Color Oops) - I assume due to the high alkalinity/ disruption of the skin flora. I suspect very mild SD tho never bothered to have it diagnosed (have contact dermatitis and atopic eczema diagnosed elsewhere on face/ body). Be cautious applying Color Oops if your SD is active/ irritated at present.
SD is believed to be a reaction to the oleic acid in your own sebum and released as a waste product by malassezia yeast. Treatments focus on stripping away the sebum (sulphates also damage the skin barrier) or reducing the population of malassezia or both.
Another option is to work on reducing the amount of sebum you produce, altering the composition so it contains less oleic acid, reducing the accompanying/ underlying inflammation, strengthening and repairing your skin barrier/ flora/ acid mantle. A major part of this is diet and lifestyle modification (anti inflammatory, anti stress).
There is a sulphate free ketoconazole shampoo called Regenepure. Haven't tried it so can't compare its skin and hair friendliness to harsh pharmacy type SD treatments. Another option backed by a published study is raw honey soaks.
Do be aware that oils and butters rich in oleic acid, stearic acid and palmitic acid can all worsen SD. Pure henna has some anti microbial properties and some do find it helps their SD: that would give you a similar red to what you have now.
Bookmarks