Then follow with nexxus unbreakable care thickening conditioner for best results. The shampoo and conditioner are infused with a proteinfusion blend with biotin, keratin, and collagen amino acids to strengthen and protect hair from within Then follow with nexxus unbreakable care™ thickening conditioner for best results. Follow with the volumizing conditioner, applying to wet hair and rinsing thoroughly for best results
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