Aside from preservatives and detergents, there are many other ingredients in hair products that can cause skin problems for some of us—even natural, edible ingredients can be irritating. This is a short list of common irritants:
- Fragrances/perfumes
- Propylene glycol (PG”>
- Polyethylene glycol (PEG”>
- Polyquaternium(s”>
- Artificial colorings
- Hair dyes
- Herbal extracts and essential oils, henna
- Acids (i.e. salicylic acid, acetic acid”>
- Proteins, hydrolyzed proteins, amino acids, peptides, plant starch
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