The manuka doctor age defying serum is a super hydrating face serum for divinely smooth and younger looking skin this popular anti ageing face serum is part of the apinourish collection of skincare and a recommended part of any anti ageing skincare regimer this age defying serum has been designed for tired skin that needs a boost the serum rejuvenates and nourishes leaving skin looking and feeling younger use twice daily after you have cleansed your skin and before you apply your moisturise