Summer Oil is exactly what you’d imagine it to be considering the name. According to a 2000 study Red Raspberry seed oil offers UVA = UVB protection similar to titanium dioxide with a 28-50 SPF protection factor against UVB rays and 8 SPF against UVA rays. According to a study published in “Pharmacognosy Magazine” in 2009, products containing Carrot seed oil have a natural SPF of between 38 and 40. The more melanin you have naturally the less of this product needs to be applied and vis versa the less melanin you have the more. The darkening pigment melanin is one of the body’s primary natural defenses against UV-induced DNA damage. Our Summer oil contains non-nano zinc oxide while in the sun reapply it every 2 hours. Thank us later.