3INA is a Spanish colour cosmetics and skincare brand headquartered in Madrid, known for highly pigmented makeup, its numbered shade system and a playful approach to colour and self-expression.

Its range includes makeup for lips, eyes and face alongside skincare and beauty accessories. 3INA states that its full product range is made in Europe. Production is distributed across European countries rather than concentrated in Spain, with product-origin information indicating manufacturing in countries including Italy, Spain, Germany and the United Kingdom. Its cosmetics are vegan and cruelty-free, and the company became a certified B Corporation in 2024.