Margaret Dabbs London Nourishing Nail & Cuticle Serum Pen 15ml New & Sealed. Maintain healthy nails with the Margaret Dabbs Nourishing Nail & Cuticle Serum. This nail-strengthening treatment is infused with Emu and Tea Tree Oils to help maintain strong, conditioned and shiny nails. The convenient pen formula enables precision application, softening the cuticles so they can be pushed back without damaging the nail beds. The antibacterial cuticle treatment helps to protect against irritation, hang nails, breakage and ridges to promote perfectly conditioned hands. Add the finishing touch to perfect any manicure.