Papaya Soap from St Lucia. Papaya is a fruit grown in tropical parts of the Western Hemisphere. But you can do more with papaya than eat it. It’s also used as a beauty product, with many people using papaya soap to improve the health and appearance of their skin. If you have any discoloration or dark scars, the soap may reduce the appearance of these spots. Papaya has nutrients to promote healthier skin. Papaya soap is rich in vitamin C, an antioxidant that can reduce irregular pigmentation and stimulate collagen production. The soap also contains vitamin A, another important nutrient for the skin. It promotes the production of new skin cells, and may help reduce dark spots, blemishes, and scars. Rubbing papaya soap over an insect bite or wound can help relieve pain, itching, swelling, and redness. This is because papain can reduce inflammation and promote wound healing. Also, some insect venom contains peptides, which are the building blocks of proteins. Papain can break down these proteins, relieving skin irritation.