Nailmatic's Blue Foaming Bath Salts turn a regular bath into a blue-lagoon one with a fun salt-shaker bottle that kids can pour themselves. Add a little for a pale blue, add more for something closer to deep ocean. The colour rinses off cleanly with no traces left behind on skin or bathtub. The formula includes chamomile (which makes a strong case for going to bed afterwards), sweet almond oil, sunflower oil, and vitamin E, so it moisturises rather than dries. Vegan, cruelty-free, preservative-free, and dermatologically tested. 250 gRecyclable packagingMade in PolandAges 3 + Nailmatic is a French brand founded in 2012 that turned nail polish into a playful accessory for kids and grown-ups alike. Their water-based kids' polishes wash off with soap and water, no remover needed, and the range has grown to include tattoo pens, bath treats, and creative kits made for screen-free fun. Designed and largely made in France, vegan and dermatologically tested.