Instantly illuminating your skin while lifting and defining, this Peter Thomas Roth Instant FIRMx Glow-Filter Priming Serum is formulated with illuminating minerals, diamond powder, and 5% Actigym Clinical Contouring Technology which sculpts and contours your complexion. Rejuvenating your skin and blurring imperfections, this daily serum leaves your skin flawless and radiant, providing the perfect base for makeup. Clinically proven to improve the look of skin firmness in just 1 week* this serum is perfect for introducing as part of your daily anti-ageing routine. Users immediately agree:Skin appears healthy, radiant and glowy†Skin feels firm and fresh† Real results:94% agreed skin felt hydrated and soft†92% agreed skin appeared illuminated†92% agreed this product provides a perfect canvas for makeup† *Based on a 4-week clinically measured study on 36 women, ranging in age from 29 to 55.†Based on a 4-week consumer perception study on 36 women, ranging in age from 29 to 55. Benefits of P