No longer made! These go for $75+ on eBay. LAST BOTTLE. Brand New, Never used! iso tamer smoothing foam gel softens and calms unruly waves and curls. formulated with isoamine and guar gum to gently soften internal bonds for smoother combing and effective, longer-lasting straightening. apply a generous amount into palm, work through hair and comb smooth.for best results blow-dry using a round brush and moderate tension. (6.7 oz)