RoC's SERUM_RAFFERMISSANT_EN_STICK is a must-have for those looking for an effective solution to deep wrinkles and sagging skin. In fact, its exclusive formula, developed with dermatologists and plastic surgeons, delivers clinically proven results, both instantly and over the long term. By using this serum on a regular basis, users can see a significant improvement in skin firmness, with results of up to 90% improvement from the very first application. What's more, after just 4 weeks, skin on the face and neck looks visibly firmer for 94% of users. All in all, this firming serum stick represents a real breakthrough in anti-aging cosmetics, offering users firmer, smoother, visibly rejuvenated skin.