I found information on Mari Maria makeup products and henna hair dye. However, I did not find any information on Mari Maria hair products specifically. Here is what I found:

Mari Maria Makeup Cover Up Base ingredients (Explained) :

• Aqua
• Cyclopentasiloxane
• Trimethylsiloxysilicate
• PEG/PPG-20/15 Dimethicone

Mari Maria makeup Base Maria Maria Skin Velvet ingredients (Explained) :

• Cyclopentasiloxane
• Hydrogenated Polyisobutene
• Dimethicone
• Polymethylsilsesquioxane
• Cetyl PEG/PPG-10/1 Dimethicone
• Disteardimonium Hectorite
• Propylene Carbonate
• Phenoxyethanol
• Ethylhexylglycerin
• CI 77891
• CI 77492
• CI 77491
• CI 77499

Henna hair dye ingredients:

• Lawsonia Inermis (henna) leaf power
• Indigofera tinctoria (indigo) leaf powder
• Casia auriculata

I did not find any information on the positive or negative effects of these products.