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At Happy Lashes, we use high-quality Korean PBT materials for our eyelashes.

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What is PBT?

PBT (polybutylene terephthalate) is a synthetic, semi-crystalline engineering thermoplastic originally developed in Korea. This high-performance material is characterized by its extreme strength, flexibility and durability thanks to its high molecular weight.

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PBT produces lashes that look natural and have a beautiful, soft, glossy sheen without losing their curl. PBT is also hypoallergenic, which significantly reduces the risk of skin reactions compared to other eyelash extension materials. These materials can store heat better and maintain their curl permanently.

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You may not have heard the term PBT, but you're probably familiar with names like synthetic silk or mink lashes. These names were created by manufacturers to make PBT seem more attractive.

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Raw PBT is a significantly more expensive material than the alternatives made in China. Cheaper eyelash materials from China often contain additional fillers to produce larger quantities, but this increases the risk of allergic reactions. Such materials are less heat resistant, lose their curl more quickly, are stiff and can break easily. Therefore, when purchasing, make sure you choose high-quality raw materials such as Korean PBT, even if they are more expensive.