So, you found a gorgeous shade of peachy nude lipstick.... right on trend. It looks amazing in the lipstick tube but when you put it on, it turns orange within 15 minutes! It happens to me all the time. Pigments in the lipstick react with the chemistry of the skin and change color. This color shift is due to the pH of the skin. Our skin has an acidic pH of 4.5 to 5.5. It varies slightly from person to person which is why lipstick changes on some people and not others. The oil, sweat and bacteria on our skin create a protective layer called the acid mantle with its pH of 4.5 to 5.5. The acid mantle can change due to how we treat our skin. The skin pH can change due to the environment. The sun, as well as pollution, can affect skin's pH. What we eat can affect the pH of our skin. Sweating and cosmetic products can also change pH. The skin will always try to get back to 4.5-5.5 no matter how we abuse it. Use gentle pH balanced skin care products, eat a healthy diet w
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