The Curl Hero and No 1 bestseller for over 20 years, Umberto Giannini Curl Jelly banishes frizz, adds shine and gives definition to waves and curls; this is the scrunch drying jelly you've been looking for! Define Your Tresses - Combat manageability, flop, and whatever your curls throw at you on a daily basis with this medium hold, silicone-free, defining, frizz control gel; UK’s best-selling curl jelly! Safe for colour, chemically treated, relaxed hair and hair extensions.