Improve the appearance of lax skin with NIOD Neck Elasticity Catalyst Serum, an anti-ageing formula specially formulated to improve the appearance of elasticity. Focusing on the increase & protection of visible skin elasticity, the neck serum utilises an array of powerful technologies to promote firmer-looking skin. Helping to prevent the development of neck lines & sagging, the serum contains pro-elastin & pro-elastic-fibre technologies, plus un-enzyme technologies to help inhibit the key enzyme that breaks down elastin. Circulatory Push-Pull Biotechnology of Caffeine & Bitter Ginger (density technologies) work in synergy to enhance skin density for a youthful-looking effect. p H 4.4-5.5 Vegan. Cruelty free. Free from alcohol, nuts & gluten.