LOreal hair color products contain ingredients that may cause allergic and/or other types of reactions, so a skin allergy test is required 48 hours before use. LOreals permanent oxidative hair dyes are used in combination with hydrogen peroxide to obtain the desired shade and cover grey hair. They are of synthetic origin and can be found under the names P-PHENYLENEDIAMINE (PPD) and TOLUENE-2,5-DIAMINE (and) THIOGLYCERIN (PTD) among others. LOreal Paris Excellence Creme Permanent Triple Care Hair Color, 5AR Medium Maple Brown, and 9.5NB Lightest Natural Blonde are two examples of LOreal hair color products.
LOreal does not use certain ingredients in their products, such as 1,4-Dioxane, Acetaldehyde, Acetonitrile, Acrylamide, Benzene, Bisphenol A, and Butylated hydroxyanisole (BHA) . An ingredient of natural origin has undergone transformation of its constituents, while a natural ingredient has not. LOreal uses ingredients of natural origin that have undergone transformation of their constituents, such as Pro-Xylane, an anti-aging ingredient derived from beechwood.
Madison Reed is a hair color brand that uses ethanolamine instead of ammonia, but it is potentially more harmful than ammonia. Madison Reeds permanent hair dye ingredients include hair colorants or dyes that change the color of hair or cover gray, such as toluene-2,5-diamine sulfate (PTDS) and n-phenyl-p-phenylenediamine sulfate (NPPPD), which are considered potential allergens and sensitizers.
In summary, LOreal hair color products contain synthetic ingredients that can cause allergic reactions, and a skin allergy test is required before use. LOreal uses ingredients of natural origin that have undergone transformation of their constituents, while Madison Reed uses ethanolamine instead of ammonia but contains hair colorants that are considered potential allergens and sensitizers.
