i
- Illite
- Imidazolidinyl Urea
- Imidazolidinyl urea
- Inositol
- Inulin
- Iodine complex with ammonium ether sulfate and polyoxyethylene sorbitan monolaurate
- Iodine complex with phosphate ester of alkylaryloxy polyethylene glycol
- Iodopropynyl butylcarbamate
- Iron oxide
- Isoamyl laurate
- Isobutane
- Isobutylparaben
- Isoceteth-20
- Isocetyl isostearate
- Isocetyl stearate
- Isocetyl stearoyl stearate
- Isododecane
- Isoeicosane
- Isohexadecane
- Isononyl isononanoate
- Isopentane
- Isopentyldiol
- Isopropyl Alcohol
- Isopropyl alcohol (rubbing alcohol)
- Isopropyl jojobate
- Isopropyl myristate
- Isopropyl palmitate
- Isopropylparaben
- Isopropyl Stearate
- Isopropyl titanium triisostearate
- Isostearamidopropyl morpholine lactate
- Isostearyl hydroxystearate
- Isostearyl Isostearate
- Isothiazolinones
