Formulators generally avoid high-concentration essential oils, certain preservatives like methylisothiazolinone (restricted in EU leave-on products), formaldehyde-releasing preservatives, synthetic fragrance in products for infants, and any ingredient on the EU's restricted-for-children list under Annex III. Your cosmetic chemist should provide a complete justified INCI list explaining each ingredient choice and its safety precedent for pediatric use.
Read the full guide on how to find a formulator for kids safe skincare line →