To choose the right hair extension length and volume, consider your natural hair length, texture, and desired style. Shorter extensions (14-18 inches) offer a natural look, while longer ones (20-24 inches) create dramatic length. Volume depends on hair thickness—fine hair benefits from lightweight extensions, while thick hair may require more grams for a fuller effect. 

The best types of hair extensions for 2025 include clip-in extensions for quick styling, tape-in extensions for a semi-permanent look, halo extensions for easy volume, fusion extensions for long-lasting results, and sew-in extensions for thick hair. Each type offers unique benefits depending on your hair goals and lifestyle.