sarkidiornis melanotos sylvicola File:Comb Duck (captive).jpg African comb duck (Sarkidiornis melanotos

The Week, May 31

Some individuals report: Gradual deepening of natural skin tone Faster tanning response when exposed to sunlight Longer retention of bronze colour More even pigmentation Results typically develop progressively and may require appropriate UV exposure to activate melanin production

Veronesi U, Cascinelli N, Adamus J, Balch C, Bandiera D, Barchuk A, et al

This product is intended exclusively for in vitro and laboratory research

The trial excluded patients with an autoimmune disease, a condition requiring immunosuppression, or a history of severe irAEs from treatment with ipilimumab

David Carter, from the MHRA said: We are warning people not to use this product