The must-have nail care set for stronger and healthier nails, beloved by our in-house experts. Dynamic Duo includes our best-selling Pure Strength Nail Strengthener and Nourishing Cuticle Oil Rollerball. Both formulas are cruelty-free, paraben free, gluten free, vegan and made in the USA. Nourishing Cuticle Oil An all-natural, EWG VERIFIED formula that strengthens nails and softens cuticles in a rollerball for on-the-go hydration. Non-greasy, emollient texture with a light, invigorating scent of lavender and lemon. Pure Strength Nail Strengthener Strengthen and lengthen nails by providing a protective coat and deep nourishment. Made with over 80% plant-based ingredients, this is perfect for those with weak nails or who have just removed gel or extensions.