ALASTIN Skincare Restorative Neck Complex with TriHex Technology 1.7 Fl. Oz. 50 mLFirm, smooth, and rejuvenate your neck and dcolletage with ALASTIN Skincare Restorative Neck Complex with TriHex Technology 1. 7 Fl. Oz. (50 mL). This advanced skincare treatment targets signs of aging in the delicate neck area, helping to improve skin elasticity, firmness, and texture. Its proprietary TriHex Technology supports the skins natural ability to regenerate collagen and elastin, promoting a smoother, more youthful appearance over time.