DS Labs Spectral Extra Strength Hair Density Serum (formerly Spectral.DNC-S), 60mL – Lightweight Leave-In for Fuller, Thicker Looking Hair, Melanex Technology Preserves Pigment, Men & Women (3 Pack) Spectral Extra Strength is a scalp-first, leave-in serum crafted to enhance the appearance of density and support a more vibrant, natural-looking tone. The advanced formula combines Nanoxidil, Melanex complex, copper peptides, caffeine, biotin, and botanical extracts. DS Labs’ Nanosome delivery helps direct ingredients to the scalp while maintaining a lightweight, non-greasy feel that fits easily into daily routines. MORE BENEFITS Fuller Looking Density – Helps hair look thicker, fuller, and more resilient with consistent use. Supports Natural Looking Color – Melanex technology helps preserve h