Inclusion Criteria  Aged 18 years and over Diagnosed with dry skin conditions (e.g. eczema, psoriasis, scars etc.) Capacity to give informed consent Confirmed or suspected skin cancer (incompletely excised BCC with histologically proven radial margin involvement, biopsy proven BCC or pigmented lesions suspicious of malignant melanoma) . Diagnosed with an incompletely excised basal cell carcinoma skin cancer (either radial margin involvement on primary excision or following diagnostic punch biopsy). Clinically suspicious pigmented skin lesion (suspected melanoma) with a plan for surgical biopsy Capacity to give informed consent  Exclusion Criteria:  Study Arm 1 ( benign dry skin condition) • Previous allergy or sensitivity to propriety emollients in common usage (e.g. E45®, Aveeno®, Doublebase®etc.).