Clip-in hair extensions can transform fine, thin hair - adding instant volume and length - when applied correctly. This step-by-step guide (with pro tips and visuals) shows you how to choose the right lightweight, seamless extensions and clip them in for a flawless, undetectable look that blends perfectly with fine hair.

Jamie Lynn Spears’ twinning prom moment with her lookalike daughter is giving us major hair inspiration. Learn how to get her daughter’s voluminous, seamless look with seamless clip in hair extensions - from pro tips on boosting volume and blending curls to the secret of natural-looking layers. This in-depth guide shows you how to transform your hair with ease, plus our top product picks from Barely Xtensions for celeb-worthy results.