Serum 71 is a professional-grade revitalising serum formulated to energise tired, sluggish skin and support cellular renewal. Developed by Circadia, it is designed to improve skin vitality, texture, and overall radiance by stimulating healthy skin function. The advanced formula works to enhance circulation at the skin surface, support oxygen utilisation, and improve the appearance of dull, fatigued skin. With consistent use, it helps refine texture, boost luminosity, and support a smoother, more refreshed complexion. Suitable for most skin types, particularly dull or environmentally stressed skin, Serum 71 integrates seamlessly into professional treatment protocols and advanced home-care routines. Skin revitalisation. Energy boost. Professional renewal support.