# 3.1 - Light Brown: Natural beauty with subtle definition! Belmacil light brown no.3.1 is perfect for clients with lighter hair colour – blonde or light brown – that wish to have a more subtle and natural effect to the lashes and eyebrows, however still providing your client with a long-lasting and gentle result up to 6 – 8 weeks. TIP: Can be mixed with other shades of Belmacil brown to achieve the desired effect.