Melanotan What It Is and Its Relation to Skin Cancer Freckles Dr Darren McKeown Melanotan Tanning Injections The Low Down Lynton Lasers Freckles develop when specific skin cells produce extra melanin in response to sunlight. When ultraviolet rays reach the skin, melanocytes release melanin to protect deeper layers from damage. In some people, certain Professional Removal of Hyperpigmentation My London Skin Clinic