JLO BODY Ultimate Body Serum TIGHTEN + TEASE® NEW SEALED 4 FL OZ. Add to a bundle for best price! Help visibly brighten on targeted areas including the chest, legs and upper arm. Powered by high-performance actives including AHAs, Niacinamide, Heptapeptide-7 and bentonite clay, this advanced body serum delivers immediate and lasting clinically-tested results you can see and feel. With each application, reveal smoother, more radiant looking skin – and unstoppable confidence. high-performance body serum formulated with powerful AHAs and niacinamide to visibly brighten over time while refining and resurfacing skin tone and texture.