Generally, brow lamination lasts from four to six weeks. Depending on how well you look after your brows, it can last up to eight weeks. After the four to six-week period, it's recommended that you get your brows re-laminated in order to maintain the look over a longer period of time. Several factors can affect exactly how much time you can go in between eyebrow-tinting treatments. The consensus among experts is that eyebrow tinting will last between three to eight weeks.