Shop › Hard Rock Gel Image 1 of 2 Image 2 of 2 Hard Rock Gel $20.95 Sold Out Hard Rock Gel provides a strong grip and gives hair defined texture and separation. Sold Out Added! Hard Rock Gel provides a strong grip and gives hair defined texture and separation. You Might Also Like H-line Design Foam $31.95 H-line Brilliance Blow Dry Accelerator and Flat Iron Sealer $36.95 Sebastian Potion 9 $21.60 H-Line Volume Infusion $27.95 H-line Making Waves Beach Spray $27.95