SkinKraft uses safe ingredients that don't cause allergic reactions. Free from sulfates, parabens, phthalates, and other harmful chemicals and toxins, these products don't cause any birth effects, or nervous disorders, or alter the pH balance, or increase the risk of cancer. Hence, these don't have any side-effects. However, if you experience any irritation or trouble while using the products, discontinue for 2 days. Try to find the reason or visit the nearest dermatologist.