Net content: 16+2 setsShelf life: three yearsProduct features:1. Adopt ginseng essence formula to deeply nourish hair follicles, promote natural hair regeneration, and improve sparse hair volume.2. Advanced hair growth technology, gentle and non-irritating, suitable for all scalp types, improve hair density and strength.3. Systematic care program, daily use can effectively slow down hair loss problems and enhance hair root stability.4. No harmful chemical ingredients are added, and authoritative safety certification has been passed, which makes it safer and more assured to use.5. Portable design, fast absorption formula, easy to integrate into daily hair care process, and improve hair growth efficiency.Delivery contents include: 1/2/3sets * Hair roller essence