Lead paint usually looks like old, thick, cracking paint that may peel in “scales” or chips, but you cannot know for sure just by looking at it and should rely on testing to confirm it. According to JSE Labs , it often shows “alligatoring,” a scaly crack pattern, along with chalky residue. It is most common in homes built before 1978 and is dangerous mainly when it is damaged and creating dust or chips that people, especially children, can breathe in or swallow.​ What is lead paint? Lead paint is regular paint that has lead added to it to make it more durable and to help colors last longer. According to Wikipedia, it was widely used on walls, trim, doors, windows, and even exterior surfaces until it was banned for residential use in the United States in 1978 because lead is a powerful toxin that harms the brain and other organs. The CDC notes that lead dust and chips are especially risky for babies, young children, and pregnant women because they can cause serious long-term health problems.​ What does lead paint look like? Lead paint can be almost any color and can have different finishes, from dull and flat to thick and glossy, so color alone is not a clue. One environmental testing guide explains that older lead paint often ages poorly and may show “alligatoring,” which means the surface cracks in a pattern that looks like reptile scales, along with peeling, chipping, and a chalky residue when rubbed. However, newer non-lead paint can also crack and peel, so appearance can only suggest risk, not prove it.​​